FortiGate 800
Installation and
Configuration Guide
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
FortiGate User Manual Volume 1
Version 2.50
January 15 2004
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Table of Contents
Introduction.......................................................................................................... 15
Antivirus protection ........................................................................................................... 16
Web content filtering ......................................................................................................... 16
Email filtering .................................................................................................................... 17
NAT/Route mode .......................................................................................................... 18
Transparent mode......................................................................................................... 18
VLANs and virtual domains............................................................................................... 18
Network intrusion detection............................................................................................... 18
High availability................................................................................................................. 19
Secure installation, configuration, and management........................................................ 20
Web-based manager .................................................................................................... 20
Command line interface................................................................................................ 21
Logging and reporting................................................................................................... 21
Document conventions ..................................................................................................... 22
Fortinet documentation ..................................................................................................... 22
Comments on Fortinet technical documentation........................................................... 23
Customer service and technical support........................................................................... 23
Getting started ..................................................................................................... 25
Package contents ............................................................................................................. 26
Mounting ........................................................................................................................... 26
Powering on...................................................................................................................... 27
Connecting to the web-based manager............................................................................ 28
Connecting to the command line interface (CLI)............................................................... 29
Factory default FortiGate configuration settings ............................................................... 30
Factory default NAT/Route mode network configuration .............................................. 30
Factory default Transparent mode network configuration............................................. 31
Factory default firewall configuration ............................................................................ 32
Factory default content profiles..................................................................................... 33
Planning the FortiGate configuration ................................................................................ 36
NAT/Route mode .......................................................................................................... 36
Transparent mode......................................................................................................... 37
Configuration options.................................................................................................... 38
FortiGate model maximum values matrix ......................................................................... 39
Next steps......................................................................................................................... 40
FortiGate-800 Installation and Configuration Guide
3
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
NAT/Route mode installation.............................................................................. 41
Preparing to configure NAT/Route mode.......................................................................... 41
Advanced NAT/Route mode settings............................................................................ 42
DMZ and user-defined interfaces.................................................................................. 43
Using the setup wizard...................................................................................................... 43
Starting the setup wizard .............................................................................................. 43
Reconnecting to the web-based manager .................................................................... 43
Using the front control buttons and LCD........................................................................... 44
Using the command line interface..................................................................................... 44
Connecting the FortiGate unit to your networks................................................................ 46
Configuring your networks ................................................................................................ 48
Completing the configuration ............................................................................................ 49
Configuring the DMZ interface...................................................................................... 49
Configuring interfaces 1 to 4......................................................................................... 49
Setting the date and time.............................................................................................. 49
Changing antivirus protection ....................................................................................... 49
Registering your FortiGate unit..................................................................................... 50
Configuring virus and attack definition updates ............................................................ 50
Configuration example: Multiple connections to the Internet ............................................ 50
Configuring ping servers............................................................................................... 51
Destination-based routing examples............................................................................. 52
Policy routing examples................................................................................................ 55
Firewall policy example................................................................................................. 56
Transparent mode installation............................................................................ 59
Preparing to configure Transparent mode ........................................................................ 59
Using the setup wizard...................................................................................................... 60
Starting the setup wizard .............................................................................................. 60
Reconnecting to the web-based manager .................................................................... 60
Using the front control buttons and LCD........................................................................... 61
Using the command line interface..................................................................................... 61
Changing to Transparent mode using the CLI.............................................................. 61
Configure the Transparent mode default gateway........................................................ 62
Completing the configuration ............................................................................................ 62
Setting the date and time.............................................................................................. 62
Enabling antivirus protection......................................................................................... 62
Registering your FortiGate unit..................................................................................... 63
Configuring virus and attack definition updates ............................................................ 63
Connecting the FortiGate unit to your networks................................................................ 63
4
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Transparent mode configuration examples....................................................................... 64
Default routes and static routes .................................................................................... 65
Example default route to an external network............................................................... 65
Example static route to an external destination ............................................................ 67
Example static route to an internal destination ............................................................. 69
High availability.................................................................................................... 73
Configuring an HA cluster................................................................................................. 74
Configuring FortiGate units for HA operation................................................................ 74
Connecting the cluster .................................................................................................. 76
Adding a new FortiGate unit to a functioning cluster .................................................... 78
Managing an HA cluster.................................................................................................... 78
Configuring cluster interface monitoring ....................................................................... 79
Viewing the status of cluster members ......................................................................... 80
Monitoring cluster members.......................................................................................... 80
Viewing cluster sessions............................................................................................... 82
Viewing and managing cluster log messages............................................................... 82
Monitoring cluster units for failover ............................................................................... 83
Viewing cluster communication sessions...................................................................... 83
Managing individual cluster units.................................................................................. 83
Changing cluster unit host names................................................................................. 84
Synchronizing the cluster configuration ........................................................................ 85
Upgrading firmware....................................................................................................... 86
Replacing a FortiGate unit after failover ....................................................................... 87
Advanced HA options ....................................................................................................... 87
Selecting a FortiGate unit as a permanent primary unit................................................ 87
Configuring the priority of each FortiGate unit in the cluster......................................... 88
Configuring weighted-round-robin weights ................................................................... 88
Active-Active cluster packet flow....................................................................................... 89
NAT/Route mode packet flow ....................................................................................... 90
Transparent mode packet flow...................................................................................... 91
System status....................................................................................................... 93
Changing the FortiGate host name................................................................................... 94
Changing the FortiGate firmware...................................................................................... 94
Upgrading to a new firmware version ........................................................................... 95
Reverting to a previous firmware version...................................................................... 96
Installing firmware images from a system reboot using the CLI ................................... 99
Testing a new firmware image before installing it....................................................... 101
Installing and using a backup firmware image............................................................ 103
Manual virus definition updates ...................................................................................... 106
Manual attack definition updates .................................................................................... 107
Displaying the FortiGate serial number........................................................................... 107
FortiGate-800 Installation and Configuration Guide
5
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Displaying the FortiGate up time..................................................................................... 108
Displaying log hard disk status ....................................................................................... 108
Backing up system settings ............................................................................................ 108
Restoring system settings............................................................................................... 108
Restoring system settings to factory defaults ................................................................. 109
Changing to Transparent mode ...................................................................................... 109
Changing to NAT/Route mode........................................................................................ 110
Restarting the FortiGate unit........................................................................................... 110
Shutting down the FortiGate unit .................................................................................... 110
System status ................................................................................................................. 111
Viewing CPU and memory status ............................................................................... 111
Viewing sessions and network status ......................................................................... 112
Viewing virus and intrusions status............................................................................. 113
Session list...................................................................................................................... 114
Updating antivirus and attack definitions ........................................................................ 117
Connecting to the FortiResponse Distribution Network .............................................. 118
Manually initiating antivirus and attack definitions updates ........................................ 119
Configuring update logging......................................................................................... 120
Scheduling updates ........................................................................................................ 120
Enabling scheduled updates....................................................................................... 120
Adding an override server........................................................................................... 121
Enabling scheduled updates through a proxy server.................................................. 122
Enabling push updates ................................................................................................... 122
Enabling push updates ............................................................................................... 123
Push updates when FortiGate IP addresses change.................................................. 123
Enabling push updates through a NAT device............................................................ 124
Registering FortiGate units ............................................................................................. 128
FortiCare Service Contracts........................................................................................ 129
Registering the FortiGate unit..................................................................................... 130
Updating registration information.................................................................................... 131
Recovering a lost Fortinet support password.............................................................. 132
Viewing the list of registered FortiGate units .............................................................. 132
Registering a new FortiGate unit ................................................................................ 133
Changing your Fortinet support password.................................................................. 134
Changing your contact information or security question............................................. 134
Downloading virus and attack definitions updates...................................................... 135
Registering a FortiGate unit after an RMA...................................................................... 136
6
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Network configuration....................................................................................... 137
Configuring zones........................................................................................................... 137
Adding zones .............................................................................................................. 138
Deleting zones ............................................................................................................ 138
Configuring interfaces..................................................................................................... 138
Viewing the interface list ............................................................................................. 139
Changing the administrative status of an interface..................................................... 139
Adding an interface to a zone ..................................................................................... 139
Configuring an interface with a manual IP address .................................................... 140
Configuring an interface for DHCP ............................................................................. 140
Configuring an interface for PPPoE............................................................................ 141
Adding a secondary IP address to an interface .......................................................... 142
Adding a ping server to an interface ........................................................................... 142
Controlling administrative access to an interface........................................................ 143
Configuring traffic logging for connections to an interface.......................................... 144
VLAN overview ............................................................................................................... 145
VLANs in NAT/Route mode ............................................................................................ 146
Rules for VLAN IDs..................................................................................................... 146
Rules for VLAN IP addresses ..................................................................................... 146
Adding VLAN subinterfaces........................................................................................ 147
Virtual domains in Transparent mode............................................................................. 147
Virtual domain properties............................................................................................ 149
Configuring a virtual domain ....................................................................................... 149
Adding firewall policies for virtual domains ................................................................. 152
Deleting virtual domains.............................................................................................. 153
Adding DNS server IP addresses ................................................................................... 153
Configuring routing.......................................................................................................... 153
Adding a default route................................................................................................. 154
Adding destination-based routes to the routing table.................................................. 154
Adding routes in Transparent mode............................................................................ 155
Configuring the routing table....................................................................................... 156
Policy routing .............................................................................................................. 156
Configuring DHCP services ............................................................................................ 157
Configuring a DHCP relay agent................................................................................. 158
Configuring a DHCP server ........................................................................................ 158
RIP configuration............................................................................................... 161
RIP settings..................................................................................................................... 161
Configuring RIP for FortiGate interfaces......................................................................... 163
FortiGate-800 Installation and Configuration Guide
7
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Adding RIP filters ............................................................................................................ 165
Adding a RIP filter list.................................................................................................. 165
Assigning a RIP filter list to the neighbors filter........................................................... 166
Assigning a RIP filter list to the incoming filter............................................................ 166
Assigning a RIP filter list to the outgoing filter............................................................. 167
System configuration ........................................................................................ 169
Setting system date and time.......................................................................................... 169
Changing system options................................................................................................ 170
Adding and editing administrator accounts..................................................................... 172
Adding new administrator accounts............................................................................ 172
Editing administrator accounts.................................................................................... 173
Configuring SNMP .......................................................................................................... 173
Configuring the FortiGate unit for SNMP monitoring .................................................. 174
Configuring FortiGate SNMP support ......................................................................... 174
FortiGate MIBs............................................................................................................ 176
FortiGate traps............................................................................................................ 177
Fortinet MIB fields....................................................................................................... 179
Replacement messages ................................................................................................. 181
Customizing replacement messages.......................................................................... 182
Customizing alert emails............................................................................................. 183
Firewall configuration........................................................................................ 185
Default firewall configuration........................................................................................... 186
Interfaces .................................................................................................................... 187
VLAN subinterfaces .................................................................................................... 187
Zones.......................................................................................................................... 187
Addresses................................................................................................................... 188
Services ...................................................................................................................... 188
Schedules ................................................................................................................... 188
Content profiles........................................................................................................... 189
Adding firewall policies.................................................................................................... 189
Firewall policy options................................................................................................. 190
Configuring policy lists .................................................................................................... 195
Policy matching in detail ............................................................................................. 195
Changing the order of policies in a policy list.............................................................. 196
Enabling and disabling policies................................................................................... 196
Addresses....................................................................................................................... 197
Adding addresses ....................................................................................................... 197
Editing addresses ....................................................................................................... 198
Deleting addresses ..................................................................................................... 199
Organizing addresses into address groups ................................................................ 199
8
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Services .......................................................................................................................... 200
Predefined services .................................................................................................... 200
Adding custom TCP and UDP services ...................................................................... 203
Adding custom ICMP services.................................................................................... 204
Adding custom IP services.......................................................................................... 204
Grouping services....................................................................................................... 204
Schedules ....................................................................................................................... 205
Creating one-time schedules ...................................................................................... 206
Creating recurring schedules...................................................................................... 207
Adding schedules to policies....................................................................................... 208
Virtual IPs........................................................................................................................ 208
Adding static NAT virtual IPs ...................................................................................... 209
Adding port forwarding virtual IPs............................................................................... 210
Adding policies with virtual IPs.................................................................................... 212
IP pools........................................................................................................................... 213
Adding an IP pool........................................................................................................ 213
IP Pools for firewall policies that use fixed ports......................................................... 214
IP pools and dynamic NAT ......................................................................................... 214
IP/MAC binding............................................................................................................... 214
Configuring IP/MAC binding for packets going to the firewall..................................... 216
Adding IP/MAC addresses.......................................................................................... 216
Viewing the dynamic IP/MAC list ................................................................................ 217
Enabling IP/MAC binding............................................................................................ 217
Content profiles............................................................................................................... 218
Default content profiles ............................................................................................... 219
Adding content profiles ............................................................................................... 219
Adding content profiles to policies .............................................................................. 221
Users and authentication.................................................................................. 223
Setting authentication timeout......................................................................................... 224
Adding user names and configuring authentication........................................................ 224
Adding user names and configuring authentication.................................................... 224
Deleting user names from the internal database ........................................................ 225
Configuring RADIUS support.......................................................................................... 226
Adding RADIUS servers ............................................................................................. 226
Deleting RADIUS servers ........................................................................................... 226
Configuring LDAP support .............................................................................................. 227
Adding LDAP servers.................................................................................................. 227
Deleting LDAP servers................................................................................................ 228
Configuring user groups.................................................................................................. 229
Adding user groups..................................................................................................... 229
Deleting user groups................................................................................................... 230
FortiGate-800 Installation and Configuration Guide
9
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
IPSec VPN........................................................................................................... 231
Key management............................................................................................................ 232
Manual Keys ............................................................................................................... 232
Manual key IPSec VPNs................................................................................................. 233
General configuration steps for a manual key VPN.................................................... 233
Adding a manual key VPN tunnel ............................................................................... 233
AutoIKE IPSec VPNs...................................................................................................... 235
General configuration steps for an AutoIKE VPN ....................................................... 235
Adding a phase 1 configuration for an AutoIKE VPN.................................................. 235
Adding a phase 2 configuration for an AutoIKE VPN.................................................. 240
Managing digital certificates............................................................................................ 242
Obtaining a signed local certificate ............................................................................. 242
Obtaining CA certificates ............................................................................................ 245
Configuring encrypt policies............................................................................................ 245
Adding a source address ............................................................................................ 246
Adding a destination address...................................................................................... 247
Adding an encrypt policy............................................................................................. 247
IPSec VPN concentrators ............................................................................................... 249
VPN concentrator (hub) general configuration steps.................................................. 250
Adding a VPN concentrator ........................................................................................ 251
VPN spoke general configuration steps...................................................................... 252
Redundant IPSec VPNs.................................................................................................. 253
Configuring redundant IPSec VPNs............................................................................ 254
Monitoring and Troubleshooting VPNs ........................................................................... 255
Viewing VPN tunnel status.......................................................................................... 255
Viewing dialup VPN connection status ....................................................................... 255
Testing a VPN............................................................................................................. 256
PPTP and L2TP VPN.......................................................................................... 257
Configuring PPTP ........................................................................................................... 257
Configuring the FortiGate unit as a PPTP gateway .................................................... 258
Configuring a Windows 98 client for PPTP................................................................. 260
Configuring a Windows 2000 client for PPTP............................................................. 261
Configuring a Windows XP client for PPTP ................................................................ 261
Configuring L2TP............................................................................................................ 263
Configuring the FortiGate unit as an L2TP gateway................................................... 263
Configuring a Windows 2000 client for L2TP.............................................................. 265
Configuring a Windows XP client for L2TP................................................................. 267
10
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Detecting attacks ............................................................................................................ 269
Selecting the interfaces to monitor.............................................................................. 270
Disabling monitoring interfaces................................................................................... 270
Configuring checksum verification .............................................................................. 270
Viewing the signature list ............................................................................................ 271
Viewing attack descriptions......................................................................................... 271
Disabling NIDS attack signatures ............................................................................... 272
Adding user-defined signatures .................................................................................. 272
Preventing attacks .......................................................................................................... 274
Enabling NIDS attack prevention................................................................................ 274
Enabling NIDS attack prevention signatures .............................................................. 274
Setting signature threshold values.............................................................................. 275
Logging attacks............................................................................................................... 276
Logging attack messages to the attack log................................................................. 276
Antivirus protection........................................................................................... 279
General configuration steps............................................................................................ 279
Antivirus scanning........................................................................................................... 280
File blocking.................................................................................................................... 281
Blocking files in firewall traffic ..................................................................................... 282
Adding file patterns to block........................................................................................ 282
Quarantine ...................................................................................................................... 283
Quarantining infected files .......................................................................................... 283
Quarantining blocked files........................................................................................... 283
Viewing the quarantine list.......................................................................................... 284
Sorting the quarantine list ........................................................................................... 284
Filtering the quarantine list.......................................................................................... 285
Deleting files from the quarantine list.......................................................................... 285
Downloading quarantined files.................................................................................... 285
Configuring quarantine options................................................................................... 285
Blocking oversized files and emails ................................................................................ 286
Configuring limits for oversized files and email........................................................... 286
Exempting fragmented email from blocking.................................................................... 287
Viewing the virus list ....................................................................................................... 287
Web filtering ....................................................................................................... 289
General configuration steps............................................................................................ 289
Content blocking ............................................................................................................. 290
Adding words and phrases to the Banned Word list................................................... 290
Clearing the Banned Word list .................................................................................... 291
Backing up the Banned Word list................................................................................ 292
Restoring the Banned Word list .................................................................................. 292
FortiGate-800 Installation and Configuration Guide
11
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
URL blocking................................................................................................................... 293
Configuring FortiGate Web URL blocking................................................................... 293
Configuring FortiGate Web pattern blocking............................................................... 296
Configuring Cerberian URL filtering................................................................................ 296
Installing a Cerberian license key ............................................................................... 297
Adding a Cerberian user............................................................................................. 297
Configuring Cerberian web filter ................................................................................. 297
Enabling Cerberian URL filtering ................................................................................ 298
Script filtering .................................................................................................................. 299
Enabling script filtering................................................................................................ 299
Selecting script filter options ....................................................................................... 299
Exempt URL list .............................................................................................................. 300
Adding URLs to the URL Exempt list.......................................................................... 300
Downloading the URL Exempt List ............................................................................. 301
Uploading a URL Exempt List..................................................................................... 301
Email filter........................................................................................................... 303
General configuration steps............................................................................................ 303
Email banned word list.................................................................................................... 304
Adding words and phrases to the email banned word list........................................... 304
Downloading the email banned word list .................................................................... 305
Uploading the email banned word list......................................................................... 305
Email block list ................................................................................................................ 306
Adding address patterns to the email block list........................................................... 306
Downloading the email block list................................................................................. 306
Uploading an email block list ...................................................................................... 307
Email exempt list............................................................................................................. 307
Adding address patterns to the email exempt list ....................................................... 308
Adding a subject tag ....................................................................................................... 308
Logging and reporting....................................................................................... 309
Recording logs................................................................................................................ 309
Recording logs on a remote computer........................................................................ 310
Recording logs on a NetIQ WebTrends server........................................................... 310
Recording logs on the FortiGate hard disk ................................................................. 311
Recording logs in system memory.............................................................................. 312
Log message levels .................................................................................................... 312
Filtering log messages.................................................................................................... 313
Configuring traffic logging ............................................................................................... 314
Enabling traffic logging................................................................................................ 315
Configuring traffic filter settings................................................................................... 316
Adding traffic filter entries ........................................................................................... 316
12
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
Viewing logs saved to memory ....................................................................................... 317
Viewing logs................................................................................................................ 317
Searching logs ............................................................................................................ 318
Viewing and managing logs saved to the hard disk........................................................ 318
Viewing logs................................................................................................................ 319
Searching logs ............................................................................................................ 319
Downloading a log file to the management computer................................................. 320
Deleting all messages from an active log ................................................................... 320
Deleting a saved log file.............................................................................................. 320
Configuring alert email.................................................................................................... 321
Adding alert email addresses...................................................................................... 321
Testing alert email....................................................................................................... 321
Enabling alert email .................................................................................................... 322
Glossary ............................................................................................................. 323
FortiGate-800 Installation and Configuration Guide
13
Download from Www.Somanuals.com. All Manuals Search And Download.
Contents
14
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Introduction
FortiGate Antivirus Firewalls support network-based deployment of application-level
services, including antivirus protection and full-scan content filtering. FortiGate
Antivirus Firewalls improve network security, reduce network misuse and abuse, and
help you use communications resources more efficiently without compromising the
performance of your network. FortiGate Antivirus Firewalls are ICSA-certified for
firewall, IPSec, and antivirus services.
The FortiGate Antivirus Firewall is a dedicated easily managed security device that
delivers a full suite of capabilities that include:
•
•
application-level services such as virus protection and content filtering,
network-level services such as firewall, intrusion detection, VPN, and traffic
shaping.
The FortiGate Antivirus Firewall uses Fortinet’s Accelerated Behavior and Content
Analysis System (ABACAS™) technology, which leverages breakthroughs in chip
design, networking, security, and content analysis. The unique ASIC-based
architecture analyzes content and behavior in real-time, enabling key applications to
be deployed right at the network edge, where they are most effective at protecting
your networks. The FortiGate series complements existing solutions, such as host-
based antivirus protection, and enables new applications and services while greatly
lowering costs for equipment, administration, and maintenance.
The FortiGate-800 model provides the
levels of performance, reliability, and
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
flexibility demanded by large enterprises.
With high throughput, a total of 8 network
connections (4 user-defined), 802.1Q VLAN support, and stateful failover HA, the
FortiGate-800 is the choice for mission critical applications. The flexibility, reliability,
and easy management of the FortiGate-800 makes it a natural choice for enterprise
applications.
FortiGate-800 Installation and Configuration Guide
15
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus protection
Introduction
Antivirus protection
FortiGate ICSA-certified antivirus protection scans web (HTTP), file transfer (FTP),
and email (SMTP, POP3, and IMAP) content as it passes through the FortiGate unit. If
a virus is found, antivirus protection removes the file containing the virus from the
content stream and forwards a replacement message to the intended recipient.
For extra protection, you can configure antivirus protection to block specified file types
from passing through the FortiGate unit. You can use the feature to stop files that
might contain new viruses.
If the FortiGate unit contains a hard disk, infected or blocked files can be quarantined.
The FortiGate administrator can download quarantined files so that they can be virus
scanned, cleaned, and forwarded to the intended recipient. You can also configure the
FortiGate unit to automatically delete quarantined files after a specified time.
The FortiGate unit can send email alerts to system administrators when it detects and
removes a virus from a content stream. The web and email content can be in normal
network traffic or encrypted IPSec VPN traffic.
ICSA Labs has certified that FortiGate Antivirus Firewalls:
•
•
•
•
•
detect 100% of the viruses listed in the current In The Wild List (www.wildlist.org),
detect viruses in compressed files using the PKZip format,
detect viruses in email that has been encoded using uuencode format,
detect viruses in email that has been encoded using MIME encoding,
log all actions taken while scanning.
Web content filtering
FortiGate web content filtering can scan all HTTP content protocol streams for URLs
or web page content. If there is a match between a URL on the URL block list, or a
web page contains a word or phrase that is in the content block list, the FortiGate unit
blocks the web page. The blocked web page is replaced with a message that you can
edit using the FortiGate web-based manager.
You can configure URL blocking to block all or some of the pages on a web site. Using
this feature, you can deny access to parts of a web site without denying access to it
completely.
To prevent unintentionally blocking legitimate web pages, you can add URLs to an
exempt list that overrides the URL blocking and content blocking lists.
Web content filtering also includes a script filter feature that can block unsecure web
content such as Java applets, cookies, and ActiveX.
You can use the Cerberian URL blocking to block unwanted URLs.
16
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Introduction
Email filtering
Email filtering
FortiGate email filtering can scan all IMAP and POP3 email content for unwanted
senders or unwanted content. If there is a match between a sender address pattern
on the email block list, or an email contains a word or phrase in the banned word list,
the FortiGate adds an email tag to the subject line of the email. The recipient can use
the mail client software to filter messages based on the email tag.
You can configure email blocking to tag email from all or some senders within
organizations that are known to send spam email. To prevent unintentionally tagging
email from legitimate senders, you can add sender address patterns to an exempt list
that overrides the email block and banned words lists.
Firewall
The FortiGate ICSA-certified firewall protects your computer networks from Internet
threats. ICSA has granted FortiGate firewalls version 4.0 firewall certification,
providing assurance that FortiGate firewalls successfully screen and secure corporate
networks against a range of threats from public or other untrusted networks.
After basic installation of the FortiGate unit, the firewall allows users on the protected
network to access the Internet while blocking Internet access to internal networks. You
can configure the firewall to put controls on access to the Internet from the protected
networks and to allow controlled access to internal networks.
FortiGate policies include a range of options that:
•
•
•
•
•
•
•
•
•
control all incoming and outgoing network traffic,
control encrypted VPN traffic,
apply antivirus protection and web content filtering,
block or allow access for all policy options,
control when individual policies are in effect,
accept or deny traffic to and from individual addresses,
control standard and user defined network services individually or in groups,
require users to authenticate before gaining access,
include traffic shaping to set access priorities and guarantee or limit bandwidth for
each policy,
•
•
•
include logging to track connections for individual policies,
include Network Address Translation (NAT) mode and Route mode policies,
include mixed NAT and Route mode policies.
The FortiGate firewall can operate in NAT/Route mode or Transparent mode.
FortiGate-800 Installation and Configuration Guide
17
Download from Www.Somanuals.com. All Manuals Search And Download.
VLANs and virtual domains
Introduction
NAT/Route mode
In NAT/Route mode, you can create NAT mode policies and Route mode policies.
•
NAT mode policies use network address translation to hide the addresses in a
more secure network from users in a less secure network.
•
Route mode policies accept or deny connections between networks without
performing address translation.
Transparent mode
Transparent mode provides the same basic firewall protection as NAT mode. Packets
that the FortiGate unit receives are forwarded or blocked according to firewall policies.
The FortiGate unit can be inserted in the network at any point without having to make
changes to your network or its components. However, VPN and some advanced
firewall features are available only in NAT/Route mode.
VLANs and virtual domains
Fortigate Antivirus Firewalls support IEEE 802.1Q-compliant virtual LAN (VLAN) tags.
Using VLAN technology, a single FortiGate unit can provide security services to, and
control connections between, multiple security domains according to the VLAN IDs
added to VLAN packets. The FortiGate unit can recognize VLAN IDs and apply
security policies to secure network and IPSec VPN traffic between each security
domain. The FortiGate unit can also apply authentication, content filtering, and
antivirus protection to VLAN-tagged network and VPN traffic.
The FortiGate unit supports VLANs in NAT/Route and Transparent mode. In
NAT/Route mode, you enter VLAN subinterfaces to receive and send VLAN packets.
In Transparent mode, you create virtual domains and then add VLAN subinterfaces to
those virtual domains.
Network intrusion detection
The FortiGate Network Intrusion Detection System (NIDS) is a real-time network
intrusion detection sensor that detects and prevents a variety of suspicious network
activity. NIDS uses attack signatures to identify more than 1000 attacks. You can
enable and disable the attacks that the NIDS detects. You can also write user-defined
detection attack signatures.
NIDS prevention detects and prevents many common denial of service and packet-
based attacks. You can enable and disable prevention attack signatures and
customize attack signature thresholds and other parameters.
To notify system administrators of the attack, the NIDS records the attack and any
suspicious traffic to the attack log, and can be configured to send alert emails.
Fortinet updates NIDS attack definitions periodically. You can download and install
updated attack definitions manually or you can configure the FortiGate unit to
automatically check for and download attack definition updates.
18
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Introduction
VPN
VPN
Using FortiGate virtual private networking (VPN), you can provide a secure
connection between widely separated office networks or securely link telecommuters
or travellers to an office network. Service providers can also use the FortiGate unit to
provide VPN services for their clients.
FortiGate VPN features include the following:
•
Industry standard and ICSA-certified IPSec VPN, including:
•
•
•
•
•
•
•
•
•
•
•
•
IPSec, ESP security in tunnel mode,
DES, 3DES (triple-DES), and AES hardware accelerated encryption,
HMAC MD5 and HMAC SHA1 authentication and data integrity,
AutoIKE key based on pre-shared key tunnels,
IPSec VPN using local or CA certificates,
Manual Keys tunnels,
Diffie-Hellman groups 1, 2, and 5,
Aggressive and Main Mode,
Replay Detection,
Perfect Forward Secrecy,
XAuth authentication,
Dead peer detection.
•
•
PPTP for easy connectivity with the VPN standard supported by the most popular
operating systems.
L2TP for easy connectivity with a more secure VPN standard, also supported by
many popular operating systems.
•
•
Firewall policy based control of IPSec VPN traffic.
IPSec NAT traversal so that remote IPSec VPN gateways or clients behind a NAT
can connect to an IPSec VPN tunnel.
•
•
VPN hub and spoke using a VPN concentrator to allow VPN traffic to pass from
one tunnel to another through the FortiGate unit.
IPSec Redundancy to create a redundant AutoIKE key IPSec VPN connection to a
remote network.
High availability
High Availability (HA) provides failover between two or more FortiGate units. Fortinet
achieves HA by using redundant hardware: matching FortiGate models running in
NAT/Route mode. You can configure the FortiGate units for either active-passive (A-P)
or active-active (A-A) HA.
Both A-P and A-A HA use similar redundant hardware configurations. High availability
software guarantees that if one of the FortiGate units in the HA group fails, all
functions, established firewall connections, and IPSec VPN sessions are maintained.
FortiGate-800 Installation and Configuration Guide
19
Download from Www.Somanuals.com. All Manuals Search And Download.
Secure installation, configuration, and management
Introduction
Secure installation, configuration, and management
The first time you power on the FortiGate unit, it is already configured with default IP
addresses and security policies. Connect to the web-based manager, set the
operating mode, and use the Setup wizard to customize FortiGate IP addresses for
your network, and the FortiGate unit is ready to protect your network. You can then
use the web-based manager to customize advanced FortiGate features.
You can also create a basic configuration using the FortiGate front panel control
buttons and LCD.
Web-based manager
Using HTTP or a secure HTTPS connection from any computer running Internet
Explorer, you can configure and manage the FortiGate unit. The web-based manager
supports multiple languages. You can configure the FortiGate unit for HTTP and
HTTPS administration from any FortiGate interface.
You can use the web-based manager to configure most FortiGate settings. You can
also use the web-based manager to monitor the status of the FortiGate unit.
Configuration changes made using the web-based manager are effective immediately
without resetting the firewall or interrupting service. Once you are satisfied with a
configuration, you can download and save it. The saved configuration can be restored
at any time.
Figure 1: The FortiGate web-based manager and setup wizard
20
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Introduction
Secure installation, configuration, and management
Command line interface
You can access the FortiGate command line interface (CLI) by connecting a
management computer serial port to the FortiGate RS-232 serial console connector.
You can also use Telnet or a secure SSH connection to connect to the CLI from any
network that is connected to the FortiGate unit, including the Internet.
The CLI supports the same configuration and monitoring functionality as the
web-based manager. In addition, you can use the CLI for advanced configuration
options that are not available from the web-based manager.
This Installation and Configuration Guide contains information about basic and
advanced CLI commands. For a more complete description about connecting to and
using the FortiGate CLI, see the FortiGate CLI Reference Guide.
Logging and reporting
The FortiGate unit supports logging for various categories of traffic and configuration
changes. You can configure logging to:
•
•
•
•
•
report traffic that connects to the firewall,
report network services used,
report traffic that was permitted by firewall policies,
report traffic that was denied by firewall policies,
report events such as configuration changes and other management events, IPSec
tunnel negotiation, virus detection, attacks, and web page blocking,
•
•
report attacks detected by the NIDS,
send alert email to system administrators to report virus incidents, intrusions, and
firewall or VPN events or violations.
Logs can be sent to a remote syslog server or a WebTrends NetIQ Security Reporting
Center and Firewall Suite server using the WebTrends enhanced log format. Some
models can also save logs to an optional internal hard drive. If a hard drive is not
installed, you can configure most FortiGate units to log the most recent events and
attacks detected by the NIDS to the system memory.
FortiGate-800 Installation and Configuration Guide
21
Download from Www.Somanuals.com. All Manuals Search And Download.
Document conventions
Introduction
Document conventions
This guide uses the following conventions to describe CLI command syntax.
•
angle brackets < > to indicate variable keywords
For example:
execute restore config <filename_str>
You enter restore config myfile.bak
<xxx_str>indicates an ASCII string variable keyword.
<xxx_integer>indicates an integer variable keyword.
<xxx_ip>indicates an IP address variable keyword.
•
•
vertical bar and curly brackets {|}to separate alternative, mutually exclusive
required keywords
For example:
set system opmode {nat | transparent}
You can enter set system opmode nator set system opmode
transparent
square brackets [ ]to indicate that a keyword is optional
For example:
get firewall ipmacbinding [dhcpipmac]
You can enter get firewall ipmacbinding or
get firewall ipmacbinding dhcpipmac
Fortinet documentation
Information about FortiGate products is available from the following FortiGate User
Manual volumes:
•
Volume 1: FortiGate Installation and Configuration Guide
Describes installation and basic configuration for the FortiGate unit. Also describes
how to use FortiGate firewall policies to control traffic flow through the FortiGate
unit and how to use firewall policies to apply antivirus protection, web content
filtering, and email filtering to HTTP, FTP, and email content passing through the
FortiGate unit.
•
•
Volume 2: FortiGate VPN Guide
Contains in-depth information about FortiGate IPSec VPN using certificates, pre-
shared keys and manual keys for encryption. Also contains basic configuration
information for the Fortinet Remote VPN Client, detailed configuration information
for FortiGate PPTP and L2TP VPN, and VPN configuration examples.
Volume 3: FortiGate Content Protection Guide
Describes how to configure antivirus protection, web content filtering, and email
filtering to protect content as it passes through the FortiGate unit.
22
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Introduction
Customer service and technical support
•
•
•
Volume 4: FortiGate NIDS Guide
Describes how to configure the FortiGate NIDS to detect and protect the FortiGate
unit from network-based attacks.
Volume 5: FortiGate Logging and Message Reference Guide
Describes how to configure FortiGate logging and alert email. Also contains the
FortiGate log message reference.
Volume 6: FortiGate CLI Reference Guide
Describes the FortiGate CLI and contains a reference to all FortiGate CLI
commands.
The FortiGate online help also contains procedures for using the FortiGate web-based
manager to configure and manage the FortiGate unit.
Comments on Fortinet technical documentation
You can send information about errors or omissions in this document, or any Fortinet
technical documentation, to [email protected].
Customer service and technical support
For antivirus and attack definition updates, firmware updates, updated product
documentation, technical support information, and other resources, please visit the
Fortinet technical support web site at http://support.fortinet.com.
You can also register FortiGate Antivirus Firewalls from http://support.fortinet.com and
change your registration information at any time.
Fortinet email support is available from the following addresses:
[email protected] For customers in the United States, Canada, Mexico, Latin
America and South America.
[email protected] For customers in Japan, Korea, China, Hong Kong, Singapore,
Malaysia, all other Asian countries, and Australia.
For customers in the United Kingdom, Scandinavia, Mainland
Europe, Africa, and the Middle East.
For information on Fortinet telephone support, see http://support.fortinet.com.
When requesting technical support, please provide the following information:
•
•
•
•
•
•
•
•
•
Your name
Company name
Location
Email address
Telephone number
FortiGate unit serial number
FortiGate model
FortiGate FortiOS firmware version
Detailed description of the problem
FortiGate-800 Installation and Configuration Guide
23
Download from Www.Somanuals.com. All Manuals Search And Download.
Customer service and technical support
Introduction
24
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Getting started
This chapter describes unpacking, setting up, and powering on a FortiGate Antivirus
Firewall unit. When you have completed the procedures in this chapter, you can
proceed to one of the following:
•
•
•
If you are going to operate the FortiGate unit in NAT/Route mode, go to
If you are going to operate the FortiGate unit in Transparent mode, go to
If you are going to operate two or more FortiGate units in HA mode, go to “High
This chapter describes:
•
•
•
•
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
25
Download from Www.Somanuals.com. All Manuals Search And Download.
Package contents
Getting started
Package contents
The FortiGate-800 package contains the following items:
•
•
•
•
•
•
•
•
•
FortiGate-800 Antivirus Firewall
one orange crossover ethernet cable
one grey regular ethernet cable
one RJ-45 serial cable
one RJ-45 to DB-9 convertor
one power cable
two 19-inch rack mount brackets
FortiGate-800 QuickStart Guide
CD containing Fortinet user documentation
Figure 2: FortiGate-800 package contents
Front
Ethernet Cables:
Orange - Crossover
Grey - Straight-through
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
RJ-45 Serial Cable
LCD
Control
Buttons
Internal,External,DMZ
HA Interface
1 to 4
Interface
Serial
Port
USB
(future)
RJ-45 to DB-9 Convertor
Power Cable
Back
Rack-Mount Brackets
FortiGate-800
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
QuickStart Guide
Power Power
Connection Switch
Copyright 2003 Fortinet Incorporated. All rights reserved.
Trademarks
Products mentioned in this document are trademarks.
Documentation
Mounting
The FortiGate-800 unit can be mounted in a standard 19-inch rack. It requires 1 U of
vertical space in the rack.
The FortiGate-800 unit can also be installed as a free-standing appliance on any
stable surface. For free-standing installation, make sure that the appliance has at least
1.5 in. (3.75 cm) of clearance on each side to allow for adequate air flow and cooling.
Dimensions
•
16.75 x 12 x 1.75 in. (42.7 x 30.5 x 4.5 cm)
Weight
•
10 lb. (4.5 kg)
26
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Powering on
Power requirements
•
•
•
•
Power dissipation: 300 W (max)
AC input voltage: 100 to 240 VAC
AC input current: 6 A
Frequency: 50 to 60 Hz
Environmental specifications
•
•
•
Operating temperature: 41 to 95°F (5 to 35°C)
Storage temperature: -4 to 176°F (-20 to 80°C)
Humidity: 10 to 90% non-condensing
Powering on
To power on the FortiGate-800 unit
1
2
3
4
Make sure that the power switch on the back is turned off.
Connect the power cable to the power connection on the back of the FortiGate unit.
Connect the power cable to a power outlet.
Turn on the power switch.
After a few seconds, SYSTEM STARTING appears
on the LCD.
MAIN MENU appears on the LCD when the system
is running.
Table 1: FortiGate-500 LED indicators
LED
State
Green
Off
Description
Power
The FortiGate unit is powered on.
The FortiGate unit is powered off.
Internal
External
DMZ
Amber
The correct cable is in use and the connected equipment has
power.
Flashing
amber
Network activity at this interface.
HA
1 to 4
Green
The interface is connected. Internal, External, DMZ and HA
connect at up to 1000 Mbps. Interfaces 1, 2, 3 and 4 connect at
up to 100 Mbps.
Off
No link established.
FortiGate-800 Installation and Configuration Guide
27
Download from Www.Somanuals.com. All Manuals Search And Download.
Connecting to the web-based manager
Getting started
Connecting to the web-based manager
Use the following procedure to connect to the web-based manager for the first time.
Configuration changes made with the web-based manager are effective immediately
without resetting the firewall or interrupting service.
To connect to the web-based manager, you need:
•
•
•
a computer with an ethernet connection,
Internet Explorer version 4.0 or higher,
a crossover cable or an ethernet hub and two ethernet cables.
Note: You can use the web-based manager with recent versions of most popular web browsers.
The web-based manager is fully supported for Internet Explorer version 4.0 or higher.
To connect to the web-based manager
1
2
3
Set the IP address of the computer with an ethernet connection to the static IP
address 192.168.1.2 and a netmask of 255.255.255.0.
Using the crossover cable or the ethernet hub and cables, connect the internal
interface of the FortiGate unit to the computer ethernet connection.
Start Internet Explorer and browse to the address https://192.168.1.99 (remember to
include the “s” in https://).
The FortiGate login is displayed.
4
Type admin in the Name field and select Login.
The Register Now window is displayed. Use the information in this window to register
your FortiGate unit so that Fortinet can contact you for firmware updates. You must
also register to receive updates to the FortiGate virus and attack definitions.
Figure 3: FortiGate login
28
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Connecting to the command line interface (CLI)
Connecting to the command line interface (CLI)
As an alternative to the web-based manager, you can install and configure the
FortiGate unit using the CLI. Configuration changes made with the CLI are effective
immediately without resetting the firewall or interrupting service.
To connect to the FortiGate CLI, you need:
•
•
•
•
a computer with an available communications port,
the RJ-45 serial cable included in your FortiGate package,
the RJ-45 to DB-9 convertor included in your FortiGate package (if required),
terminal emulation software such as HyperTerminal for Windows.
Note: The following procedure describes how to connect to the CLI using Windows
HyperTerminal software. You can use any terminal emulation program.
To connect to the CLI
1
Connect the RJ-45 serial cable to the communications port of your computer and to
the FortiGate Console port.
Use the RJ-45 to DB-9 convertor if your PC communications port requires a DB-9
connector.
2
3
4
Make sure that the FortiGate unit is powered on.
Start HyperTerminal, enter a name for the connection, and select OK.
Configure HyperTerminal to connect directly to the communications port on the
computer to which you have connected the null modem cable and select OK.
5
Select the following port settings and select OK.
Bits per second 9600
Data bits
Parity
8
None
1
Stop bits
Flow control
None
6
7
Press Enter to connect to the FortiGate CLI.
The following prompt is displayed:
FortiGate-800 login:
Type adminand press Enter twice.
The following prompt is displayed:
Type ? for a list of commands.
For information about how to use the CLI, see the FortiGate CLI Reference Guide.
FortiGate-800 Installation and Configuration Guide
29
Download from Www.Somanuals.com. All Manuals Search And Download.
Factory default FortiGate configuration settings
Getting started
Factory default FortiGate configuration settings
The FortiGate unit is shipped with a factory default configuration. The default
configuration allows you to connect to and use the FortiGate web-based manager to
configure the FortiGate unit onto the network. To configure the FortiGate unit onto the
network you add an administrator password, change network interface IP addresses,
add DNS server IP addresses, and configure routing, if required.
If you plan to operate the FortiGate unit in Transparent mode, you can switch to
Transparent mode from the factory default configuration and then configure the
FortiGate unit onto the network in Transparent mode.
Once the network configuration is complete, you can perform additional configuration
tasks such as setting system time, configuring virus and attack definition updates, and
registering the FortiGate unit.
The factory default firewall configuration includes a single network address translation
(NAT) policy that allows users on your internal network to connect to the external
network, and stops users on the external network from connecting to the internal
network. You can add more policies to provide more control of the network traffic
passing through the FortiGate unit.
The factory default content profiles can be used to apply different levels of antivirus
protection, web content filtering, and email filtering to the network traffic that is
controlled by firewall policies.
•
•
•
•
Factory default NAT/Route mode network configuration
When the FortiGate unit is first powered on, it is running in NAT/Route mode and has
the basic network configuration listed in Table 2. This configuration allows you to
connect to the FortiGate unit web-based manager and establish the configuration
required to connect the FortiGate unit to the network. In Table 2 HTTPS management
access means you can connect to the web-based manager using this interface. Ping
management access means this interface responds to ping requests.
Table 2: Factory default NAT/Route mode network configuration
User name:
Password:
admin
Administrator
account
(none)
IP:
192.168.1.99
255.255.255.0
HTTPS, Ping
Internal interface
Netmask:
Management Access:
30
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Factory default FortiGate configuration settings
Table 2: Factory default NAT/Route mode network configuration (Continued)
IP:
192.168.100.99
255.255.255.0
192.168.100.1
207.194.200.1
207.194.200.129
Ping
Netmask:
Default Gateway:
Primary DNS Server:
Secondary DNS Server:
Management Access:
IP:
External interface
10.10.10.1
255.255.255.0
HTTPS, Ping
0.0.0.0
DMZ interface
HA interface
Interface 1
Interface 2
Interface 3
Interface 4
Netmask:
Management Access:
IP:
Netmask:
0.0.0.0
Management Access:
IP:
Ping
0.0.0.0
Netmask:
0.0.0.0
Management Access:
IP:
Ping
0.0.0.0
Netmask:
0.0.0.0
Management Access:
IP:
Ping
0.0.0.0
Netmask:
0.0.0.0
Management Access:
IP:
Ping
0.0.0.0
Netmask:
0.0.0.0
Management Access:
Ping
Factory default Transparent mode network configuration
If you switch the FortiGate unit to Transparent mode, it has the default network
Table 3: Factory default Transparent mode network configuration
Administrator
account
User name:
admin
Password:
(none)
IP:
10.10.10.1
255.255.255.0
207.194.200.1
207.194.200.129
Management IP
DNS
Netmask:
Primary DNS Server:
Secondary DNS Server:
FortiGate-800 Installation and Configuration Guide
31
Download from Www.Somanuals.com. All Manuals Search And Download.
Factory default FortiGate configuration settings
Getting started
Table 3: Factory default Transparent mode network configuration (Continued)
Internal
HTTPS, Ping
Ping
External
DMZ
HTTPS, Ping
Ping
Management access
Interface 1
Interface 2
Interface 3
Interface 4
Ping
Ping
Ping
Factory default firewall configuration
The factory default firewall configuration is the same in NAT/Route and Transparent
mode.
Table 4: Factory default firewall configuration
IP: 0.0.0.0
Represents all of the IP addresses on the internal
network.
Internal
Address
Internal_All
External_All
DMZ_All
Mask: 0.0.0.0
IP: 0.0.0.0
Represents all of the IP addresses on the external
network.
External
Address
Mask: 0.0.0.0
IP: 0.0.0.0
Represents all of the IP addresses on the DMZ
network.
DMZ
Address
Mask: 0.0.0.0
Recurring Always
Schedule
The schedule is valid at all times. This means that
the firewall policy is valid at all times.
Firewall
Policy
Internal->External
Firewall policy for connections from the internal
network to the external network.
Source
Internal_All
The policy source address. Internal_All means that
the policy accepts connections from any internal IP
address.
Destination External_All The policy destination address. External_All means
that the policy accepts connections with a
destination address to any IP address on the
external network.
Schedule
Service
Action
Always
ANY
The policy schedule. Always means that the policy
is valid at any time.
The policy service. ANY means that this policy
processes connections for all services.
ACCEPT
The policy action. ACCEPT means that the policy
allows connections.
; NAT
NAT is selected for the NAT/Route mode default
policy so that the policy applies network address
translation to the traffic processed by the policy.
NAT is not available for Transparent mode policies.
ꢀ Traffic Shaping
Traffic shaping is not selected. The policy does not
apply traffic shaping to the traffic controlled by the
policy. You can select this option to control the
maximum or minimum amount of bandwidth
available to traffic processed by the policy.
32
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Factory default FortiGate configuration settings
Table 4: Factory default firewall configuration (Continued)
ꢀ Authentication
Authentication is not selected. Users do not have to
authenticate with the firewall before connecting to
their destination address. You can configure user
groups and select this option to require users to
authenticate with the firewall before they can
connect through the firewall.
; Antivirus & Web Filter Antivirus & Web Filter is selected.
Content
Profile
Scan
The scan content profile is selected. The policy
scans all HTTP, FTP, SMTP, POP3, and IMAP
traffic for viruses. See “Scan content profile” on
content profiles to apply different levels of content
protection to traffic processed by this policy.
ꢀ Log Traffic
Log Traffic is not selected. This policy does not
record messages to the traffic log for the traffic
processed by this policy. You can configure
FortiGate logging and select Log Traffic to record all
connections through the firewall that are accepted
by this policy.
Factory default content profiles
You can use content profiles to apply different protection settings for content traffic
that is controlled by firewall policies. You can use content profiles for:
•
•
•
•
Antivirus protection of HTTP, FTP, IMAP, POP3, and SMTP network traffic
Web content filtering for HTTP network traffic
Email filtering for IMAP and POP3 network traffic
Oversized file and email blocking for HTTP, FTP, POP3, SMTP, and IMAP network
traffic
•
Passing fragmented emails in IMAP, POP3, and SMTP email traffic
Using content profiles, you can build protection configurations that can be applied to
different types of firewall policies. This allows you to customize types and levels of
protection for different firewall policies.
For example, while traffic between internal and external addresses might need strict
protection, traffic between trusted internal addresses might need moderate protection.
You can configure policies for different traffic services to use the same or different
content profiles.
Content profiles can be added to NAT/Route mode and Transparent mode policies.
Strict content profile
Use the strict content profile to apply maximum content protection to HTTP, FTP,
IMAP, POP3, and SMTP content traffic. You do not need to use the strict content
profile under normal circumstances, but it is available if you have extreme problems
with viruses and require maximum content screening protection.
FortiGate-800 Installation and Configuration Guide
33
Download from Www.Somanuals.com. All Manuals Search And Download.
Factory default FortiGate configuration settings
Getting started
Table 5: Strict content profile
Options
HTTP
;
FTP
;
IMAP
;
POP3
SMTP
;
Antivirus Scan
;
;
;
File Block
;
;
;
;
Quarantine
;
;
;
;
Web URL Block
Web Content Block
Web Script Filter
Web Exempt List
Email Block List
Email Exempt List
Email Content Block
Oversized File/Email Block
Pass Fragmented Emails
;
;
;
;
;
;
;
;
;
;
block
block
block
ꢀ
block
ꢀ
block
ꢀ
Scan content profile
Use the scan content profile to apply antivirus scanning to HTTP, FTP, IMAP, POP3,
and SMTP content traffic. Quarantine is also selected for all content services. On
FortiGate models with a hard drive, if antivirus scanning finds a virus in a file, the file is
quarantined on the FortiGate hard disk. If required, system administrators can recover
quarantined files.
Table 6: Scan content profile
Options
HTTP
;
FTP
;
IMAP
;
POP3
;
SMTP
;
Antivirus Scan
File Block
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Quarantine
;
;
;
;
;
Web URL Block
Web Content Block
Web Script Filter
Web Exempt List
Email Block List
Email Exempt List
Email Content Block
Oversized File/Email Block
Pass Fragmented Emails
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
pass
pass
pass
ꢀ
pass
ꢀ
pass
ꢀ
34
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Factory default FortiGate configuration settings
Web content profile
Use the web content profile to apply antivirus scanning and web content blocking to
HTTP content traffic. You can add this content profile to firewall policies that control
HTTP traffic.
Table 7: Web content profile
Options
HTTP
;
FTP
ꢀ
IMAP
ꢀ
POP3
ꢀ
SMTP
ꢀ
Antivirus Scan
File Block
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Quarantine
;
ꢀ
ꢀ
ꢀ
ꢀ
Web URL Block
Web Content Block
Web Script Filter
Web Exempt List
Email Block List
Email Exempt List
Email Content Block
Oversized File/Email Block
Pass Fragmented Emails
;
;
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
pass
pass
pass
ꢀ
pass
ꢀ
pass
ꢀ
Unfiltered content profile
Use the unfiltered content profile if you do not want to apply content protection to
traffic. You can add this content profile to firewall policies for connections between
highly trusted or highly secure networks where content does not need to be protected.
Table 8: Unfiltered content profile
Options
HTTP
ꢀ
FTP
ꢀ
IMAP
ꢀ
POP3
ꢀ
SMTP
ꢀ
Antivirus Scan
File Block
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Quarantine
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Web URL Block
Web Content Block
Web Script Filter
Web Exempt List
Email Block List
Email Exempt List
Email Content Block
Oversized File/Email Block
Pass Fragmented Emails
ꢀ
ꢀ
ꢀ
;
ꢀ
ꢀ
;
ꢀ
;
ꢀ
ꢀ
pass
pass
pass
;
pass
;
pass
;
FortiGate-800 Installation and Configuration Guide
35
Download from Www.Somanuals.com. All Manuals Search And Download.
Planning the FortiGate configuration
Getting started
Planning the FortiGate configuration
Before you configure the FortiGate unit, you need to plan how to integrate the unit into
the network. Among other things, you must decide whether you want the unit to be
visible to the network, which firewall functions you want it to provide, and how you
want it to control the traffic flowing between its interfaces.
Your configuration plan depends on the operating mode that you select. The FortiGate
unit can be configured in one of two modes: NAT/Route mode (the default) or
Transparent mode.
NAT/Route mode
In NAT/Route mode, the unit is visible to the network. Like a router, all its interfaces
are on different subnets. The following interfaces are available in NAT/Route mode:
•
•
•
•
External is the interface to the external network (usually the Internet).
Internal is the interface to the internal network.
DMZ is the interface to the DMZ network.
HA is the interface used to connect to other FortiGate-500s if you are installing an
HA cluster
•
Interfaces 1 to 4 can be connected to other networks.
You can add security policies to control whether communications through the
FortiGate unit operate in NAT or Route mode. Security policies control the flow of
traffic based on the source address, destination address, and service of each packet.
In NAT mode, the FortiGate unit performs network address translation before it sends
the packet to the destination network. In Route mode, there is no translation.
By default, the FortiGate unit has a NAT mode security policy that allows users on the
internal network to securely download content from the external network. No other
traffic is possible until you have configured further security policies.
You typically use NAT/Route mode when the FortiGate unit is operating as a gateway
between private and public networks. In this configuration, you would create NAT
mode policies to control traffic flowing between the internal, private network and the
external, public network (usually the Internet).
If you have multiple internal networks, such as a DMZ network in addition to the
internal, private network, you could create route mode policies for traffic flowing
between them.
Figure 4: Example NAT/Route mode network configuration
Internal network
192.168.1.3
Internal
192.168.1.99
FortiGate-800 Unit
in NAT/Route mode
External
204.23.1.5
Route mode policies
controlling traffic between
internal networks.
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
Internet
8
DMZ
10.10.10.1
DMZ network
NAT mode policies controlling
traffic between internal and
external networks.
10.10.10.2
36
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
Planning the FortiGate configuration
NAT/Route mode with multiple external network connections
In NAT/Route mode, you can configure the FortiGate unit with multiple redundant
connections to the external network (usually the Internet). For example, you could
create the following configuration:
•
•
•
•
External is the default interface to the external network (usually the Internet).
Interface 1 is the redundant interface to the external network.
Internal is the interface to the internal network.
DMZ is the interface to the DMZ network.
You must configure routing to support redundant Internet connections. Routing can be
used to automatically redirect connections from an interface if its connection to the
external network fails.
Otherwise, security policy configuration is similar to a NAT/Route mode configuration
with a single Internet connection. You would create NAT mode policies to control traffic
flowing between the internal, private network and the external, public network (usually
the Internet).
If you have multiple internal networks, such as a DMZ network in addition to the
internal, private network, you could create route mode policies for traffic flowing
between them.
Figure 5: Example NAT/Route multiple internet connection configuration
Internal network
192.168.1.3
FortiGate-800 Unit
in NAT/Route mode
Internal
192.168.1.1
External
204.23.1.5
Route mode policies
controlling traffic between
internal networks.
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
Internet
P
W
R
8
Port 1
64.83.32.45
DMZ
10.10.10.2
DMZ network
NAT mode policies controlling
traffic between internal and
external networks.
10.10.10.23
Transparent mode
In Transparent mode, the FortiGate unit is invisible to the network. Similar to a
network bridge, all FortiGate interfaces must be on the same subnet. You only have to
configure a management IP address so that you can make configuration changes.
The management IP address is also used for antivirus and attack definition updates.
You typically use the FortiGate unit in Transparent mode on a private network behind
an existing firewall or behind a router. The FortiGate unit performs firewall functions as
well as antivirus and content scanning but not VPN.
FortiGate-800 Installation and Configuration Guide
37
Download from Www.Somanuals.com. All Manuals Search And Download.
Planning the FortiGate configuration
Getting started
Figure 6: Example Transparent mode network configuration
FortiGate-800 Unit
in Transparent mode
Gateway to
public network
Internal network
204.23.1.5
10.10.10.2
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
Internet
8
10.10.10.3
External
(firewall, router)
10.10.10.1
Management IP
Internal
Transparent mode policies
controlling traffic between
internal and external networks
You can connect up to 8 network segments to the FortiGate unit to control traffic
between these network segments.
•
•
•
External can connect to the external firewall or router.
Internal can connect to the internal network.
HA can connect to another network or to other FortiGate-800s if you are installing
an HA cluster.
•
DMZ and interfaces 1 to 4 can connect to other network segments.
Configuration options
Once you have selected Transparent or NAT/Route mode operation, you can
complete the configuration plan and begin to configure the FortiGate unit.
You can use the web-based manager setup wizard, the control buttons and LCD, or
the command line interface (CLI) for the basic configuration of the FortiGate unit.
Setup wizard
If you are configuring the FortiGate unit to operate in NAT/Route mode (the default),
the setup wizard prompts you to add the administration password and the internal and
external interface addresses. Using the wizard, you can also add DNS server IP
addresses and a default route for the external interface.
In NAT/Route mode you can also configure the FortiGate to allow Internet access to
your internal Web, FTP, or email servers.
If you are configuring the FortiGate unit to operate in Transparent mode, you can
switch to Transparent mode from the web-based manager and then use the setup
wizard to add the administration password, the management IP address and gateway,
and the DNS server addresses.
CLI
If you are configuring the FortiGate unit to operate in NAT/Route mode, you can add
the administration password and all interface addresses. Using the CLI, you can also
add DNS server IP addresses and a default route for the external interface.
If you are configuring the FortiGate unit to operate in Transparent mode, you can use
the CLI to switch to Transparent mode, Then you can add the administration
password, the management IP address and gateway, and the DNS server addresses.
38
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Getting started
FortiGate model maximum values matrix
Front keypad and LCD
If you are configuring the FortiGate unit to operate in NAT/Route mode, you can use
the control buttons and LCD to add the IP address of the FortiGate interfaces as well
as the external default gateway.
If you are configuring the FortiGate unit to operate in Transparent mode, you can use
the control buttons and LCD to switch to Transparent mode. Then you can add the
management IP address and default gateway.
FortiGate model maximum values matrix
Table 9: FortiGate maximum values matrix
FortiGate model
50
60
100
500
500
200
500
500
300
500
500
400
500
500
500
500
500
800
500
500
1000
500
3000
500
3600
500
4000
500
Routes
500
500
500
500
Policy routing
gateways
500
500
500
500
Administrative
users
500
N/A
500
N/A
500
N/A
500
500
500
500
500
500
500
500
500
VLAN
4096* 4096* 4096* 4096* 4096* 4096* 4096* 4096* 4096*
subinterfaces
Zones
N/A
N/A
32
N/A
N/A
32
N/A
N/A
32
100
16
100
32
100
64
100
64
100
64
200
128
32
300
512
32
500
512
32
500
512
32
Virtual domains
DHCP address
scopes
32
32
32
32
32
DHCP reserved
IP/MAC pairs
10
20
30
30
50
50
100
100
200
200
200
200
Firewall policies
200
500
500
500
1000
500
2000
500
5000
3000
5000
3000
20000 20000 50000 50000 50000 50000
Firewall
addresses
6000
500
500
500
256
256
500
50
6000
500
500
500
256
256
500
50
10000 10000 10000 10000
Firewall address
groups
500
500
500
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
500
500
500
256
256
500
50
Firewall custom
services
Firewall service
groups
Firewall recurring 256
schedules
Firewall onetime
schedules
256
500
Firewall virtual
IPs
Firewall IP pools 50
* Includes the number of physical interfaces.
FortiGate-800 Installation and Configuration Guide
39
Download from Www.Somanuals.com. All Manuals Search And Download.
Next steps
Getting started
Table 9: FortiGate maximum values matrix
FortiGate model
50
60
100
200
300
400
500
800
1000
3000
3600
4000
IP/MAC binding
table entries
500
500
500
500
500
500
500
500
500
500
500
500
Firewall content
profiles
32
32
32
32
32
32
32
32
32
32
32
32
User names
20
6
500
6
1000
6
1000
6
1000
6
1000
6
1000
6
1000
6
1000
6
1000
6
1000
6
1000
6
Radius servers
LDAP servers
User groups
6
6
6
6
6
6
6
6
6
6
6
6
100
300
100
300
100
300
100
300
100
300
100
300
100
300
100
300
100
300
100
300
100
300
100
300
Total number of
user group
members
IPSec remote
gateways
20
50
80
200
1500
1500
3000
3000
5000
5000
5000
5000
(Phase 1)
IPSec VPN
tunnels (Phase 2)
20
50
80
200
500
1500
500
1500
500
3000
500
3000
500
5000
500
5000
500
5000
500
5000
500
IPSec VPN
500
500
500
concentrators
PPTP users
L2TP users
500
500
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
500
500
100
NIDS user-defined 100
signatures
Antivirus file
56
56
56
56
56
56
56
56
56
56
56
56
block patterns
Web filter and
email filter lists
Limit varies depending on available system memory. Fortinet recommends limiting total size of web and
email filter lists to 4 Mbytes or less. If you want to use larger web filter lists, consider using Cerberian web
filtering.
Log setting traffic 50
50
50
50
50
50
50
50
50
50
50
50
filter entries
* Includes the number of physical interfaces.
Next steps
Now that your FortiGate unit is operating, you can proceed to configure it to connect to
networks:
•
•
•
If you are going to operate the FortiGate unit in NAT/Route mode, go to
If you are going to operate the FortiGate unit in Transparent mode, go to
If you are going to operate two or more FortiGate units in HA mode, go to “High
40
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
NAT/Route mode installation
This chapter describes how to install the FortiGate unit in NAT/Route mode. For
information about installing a FortiGate unit in Transparent mode, see “Transparent
mode installation” on page 59. For information about installing two or more FortiGate
installing the FortiGate unit in NAT/Route mode, see “Planning the FortiGate
This chapter describes:
•
•
•
•
•
•
•
•
•
Preparing to configure NAT/Route mode
Use Table 10 to gather the information that you need to customize NAT/Route mode
settings.
FortiGate-800 Installation and Configuration Guide
41
Download from Www.Somanuals.com. All Manuals Search And Download.
Preparing to configure NAT/Route mode
NAT/Route mode installation
Table 10: NAT/Route mode settings
Administrator Password:
IP:
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
_____._____._____._____
Internal interface
Netmask:
IP:
Netmask:
External interface
Default Gateway:
Primary DNS Server:
Secondary DNS Server:
Web Server:
SMTP Server:
POP3 Server:
IMAP Server:
FTP Server:
Internal servers
If you provide access from the Internet to a web server, mail server,
IMAP server, or FTP server installed on an internal network, add the IP
addresses of the servers here.
Advanced NAT/Route mode settings
Use Table 11 to gather the information that you need to customize advanced
FortiGate NAT/Route mode settings.
Table 11: Advanced FortiGate NAT/Route mode settings
If your Internet Service Provider (ISP) supplies you with
an IP address using DHCP, no further information is
required.
DHCP:
External
interface
User name:
Password:
PPPoE:
If your ISP supplies you with an IP address using PPPoE, record your
PPPoE user name and password.
Starting IP:
Ending IP:
Netmask:
_____._____._____._____
_____._____._____._____
_____._____._____._____
DHCP server
Default Route: _____._____._____._____
DNS IP: _____._____._____._____
The FortiGate unit includes a DHCP server that you can configure to
automatically set the addresses of the computers on your internal network.
42
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Using the setup wizard
DMZ and user-defined interfaces
Use Table 12 to record the IP addresses and netmasks of the FortiGate DMZ and
user-defined interfaces if you are configuring them during installation. The HA
interface is configured during HA installation.
.
Table 12: DMZ and user-defined interfaces (Optional)
DMZ IP: _____._____._____._____
Netmask: _____._____._____._____
Netmask: _____._____._____._____
Netmask: _____._____._____._____
Netmask: _____._____._____._____
Netmask: _____._____._____._____
1
2
3
4
IP: _____._____._____._____
IP: _____._____._____._____
IP: _____._____._____._____
IP: _____._____._____._____
Using the setup wizard
From the web-based manager, you can use the setup wizard to do the initial
configuration of the FortiGate unit. For information about connecting to the web-based
Starting the setup wizard
1
In the web-based manager, select Easy Setup Wizard (the middle button in the upper-
right corner of the web-based manager).
2
3
Select the Next button to step through the wizard pages.
Use the information that you gathered in Table 10 on page 42 to fill in the wizard fields.
You can also use the information in Table 11 on page 42.
4
Confirm the configuration settings, and then select Finish and Close.
Note: If you use the setup wizard to configure internal server settings, the FortiGate unit adds
port forwarding virtual IPs and firewall policies for each server. For example, for each server
located on the Internal network the FortiGate unit adds an External->Internal firewall policy.
Reconnecting to the web-based manager
If you changed the IP address of the internal interface while you were using the setup
wizard, you must reconnect to the web-based manager using a new IP address.
Browse to https:// followed by the new IP address of the internal interface. Otherwise,
you can reconnect to the web-based manager by browsing to https://192.168.1.99.
You are now finished the initial configuration of your FortiGate unit, and can proceed
FortiGate-800 Installation and Configuration Guide
43
Download from Www.Somanuals.com. All Manuals Search And Download.
Using the front control buttons and LCD
NAT/Route mode installation
Using the front control buttons and LCD
As an alternative to the setup wizard, use the information that you recorded in
Table 10 on page 42 and Table 12 on page 43 to complete the following procedure.
Starting with Main Menu displayed on the LCD, use the front control buttons and LCD:
1
2
Press Enter three times to configure the internal
interface IP address.
Set the internal interface IP address.
Use the up and down arrow keys to increase or decrease the value of each IP address
digit. Press Enter to move to the next digit. Press Esc to move to the previous digit.
Note: When you enter an IP address, the LCD always shows three digits for each part of the
address. For example, the IP address 192.168.100.1 appears on the LCD as 192.168.100.001.
The IP address 192.168.23.45 appears as 192.168.023.045.
3
4
5
6
7
8
After you set the last digit of the IP address, press Enter.
Use the down arrow to highlight Netmask.
Press Enter and set the internal Netmask.
After you set the last digit of the Netmask, press Enter.
Press Esc to return to the Main Menu.
Repeat these steps to configure the external interface, external default gateway, and
DMZ interface if required.
You have now completed the initial configuration of your FortiGate unit and you can
Using the command line interface
As an alternative to using the setup wizard, you can configure the FortiGate unit using
the command line interface (CLI). For information about connecting to the CLI, see
Configuring the FortiGate unit to operate in NAT/Route mode
Use the information that you gathered in Table 10 on page 42 to complete the
following procedure.
Configuring NAT/Route mode IP addresses
1
2
Make sure that you are logged into the CLI.
Set the IP address and netmask of the internal interface to the internal IP address and
netmask that you recorded in Table 10 on page 42. Enter:
set system interface internal mode static ip <IP_address>
<netmask>
Example
set system interface internal mode static ip 192.168.1.1
255.255.255.0
44
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Using the command line interface
3
Set the IP address and netmask of the external interface to the external IP address
and netmask that you recorded in Table 10 on page 42.
set system interface external mode static ip <IP_address>
<netmask>
Example
set system interface external mode static ip 204.23.1.5
255.255.255.0
To set the external interface to use DHCP, enter:
set system interface external mode dhcp connection enable
To set the external interface to use PPPoE, enter:
set system interface external mode pppoe username <user name>
password <password> connection enable
Example
set system interface external mode pppoe username
[email protected] password mypass connection enable
4
5
Optionally, set the IP address and netmask of the DMZ interface to the DMZ IP
address and netmask that you recorded in Table 12 on page 43. Enter:
set system interface dmz mode static ip <IP_address> <netmask>
Example
set system interface dmz mode static ip 10.10.10.2
255.255.255.0
Set the IP address and netmask of interfaces 1 to 4 to the IP addresses and netmasks
that you recorded in Table 12 on page 43.
set system interface <interface_name> mode static ip
<IP_address> <netmask>
Example
To set the IP address of interface 3 to 192.45.56.73 and netmask to 255.255.255.0,
enter
set system interface port3 mode static ip 192.45.56.73
255.255.255.0
6
7
Confirm that the addresses are correct. Enter:
get system interface
The CLI lists the IP address, netmask, and other settings for each of the FortiGate
interfaces.
Set the primary DNS server IP addresses. Enter
set system dns primary <IP address>
Example
set system dns primary 293.44.75.21
8
Optionally, set the secondary DNS server IP addresses. Enter
set system dns secondary <IP address>
Example
set system dns secondary 293.44.75.22
FortiGate-800 Installation and Configuration Guide
45
Download from Www.Somanuals.com. All Manuals Search And Download.
Connecting the FortiGate unit to your networks
NAT/Route mode installation
9
Set the default route to the Default Gateway IP address (not required for DHCP and
PPPoE).
set system route number <route_no> dst 0.0.0.0 0.0.0.0 gw1
<gateway_ip>
Example
set system route number 0 dst 0.0.0.0 0.0.0.0 gw1 204.23.1.2
Connecting the FortiGate unit to your networks
After you complete the initial configuration, you can connect the FortiGate unit
between your internal network and the Internet. You can also connect networks to the
user-defined interfaces that you configured.
There are 4 10/100/1000 Base-TX connectors on the FortiGate-800:
•
•
•
•
Internal for connecting to your internal network,
External for connecting to your public switch or router and the Internet,
DMZ for connecting to a DMZ network,
HA for connecting to another FortiGate-800 for high availability (see “High
There are 4 10/100 Base-TX connectors on the FortiGate-800:
•
user-defined interfaces 1 to 4 for connecting up to four additional networks to your
FortiGate unit.
Note: You can also create redundant connections to the Internet by connecting two interfaces
to separate Internet connections. For example, you could connect the external interface and the
DMZ interface or any available user-defined interface to different Internet connections, each
provided by a different service provider. See “Configuration example: Multiple connections to
To connect the FortiGate unit running in NAT/Route mode
Connect the Internal interface to the hub or switch connected to your internal network.
Connect the External interface to your public switch or router.
Optionally, connect the DMZ interface to your DMZ network.
1
2
3
You can use a DMZ network to provide access from the Internet to a web server or
other server without installing the servers on your internal network.
46
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Connecting the FortiGate unit to your networks
Figure 7: FortiGate-800 NAT/Route mode connections
Internal Network
DMZ Network
Web Server
Mail Server
Hub or Switch
Internal
DMZ
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
External
FortiGate-800
Public Switch
or Router
Internet
To connect to FortiGate-800 user-defined interfaces
1
2
Connect the user-defined interface to the hub or switch connected to the intended
network.
Repeat for all user-defined interfaces that you have configured.
The example in Figure 8 shows an internal network connected to user-defined
interface 1 and an external network connected to user-defined interface 4.
FortiGate-800 Installation and Configuration Guide
47
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring your networks
NAT/Route mode installation
Figure 8: Example FortiGate-800 user-defined interface connections
Internal Network
Hub or Switch
User-defined
Interface 1
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
User-defined
Interface 4
FortiGate-800
Public Switch or Router
Internet
Configuring your networks
If you are running the FortiGate unit in NAT/Route mode, your networks must be
configured to route all Internet traffic to the IP address of the FortiGate interface to
which they are connected.
Make sure that the connected FortiGate unit is functioning properly by connecting to
the Internet from a computer on your internal network. You should be able to connect
to any Internet address.
48
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Completing the configuration
Completing the configuration
Use the information in this section to complete the configuration of the FortiGate unit.
Configuring the DMZ interface
Use the following procedure to configure the DMZ interface:
1
2
3
4
5
Log into the web-based manager.
Go to System > Network > Interface.
Choose the dmz interface and select Modify
.
Change the IP address and Netmask as required.
Select Apply.
Configuring interfaces 1 to 4
Use the following procedure to configure the eight user-defined interfaces:
1
2
3
Log into the web-based manager.
Go to System > Network > Interface.
Choose a user-defined interface and select Modify
Select from port1 to port4.
.
4
5
Change the IP address and Netmask as required.
Select Apply.
Setting the date and time
For effective scheduling and logging, the FortiGate system date and time must be
accurate. You can either manually set the system date and time or configure the
FortiGate unit to automatically keep its time correct by synchronizing with a Network
Time Protocol (NTP) server.
For information about setting the FortiGate system date and time, see “Setting system
Changing antivirus protection
To change how antivirus protection to protects users on your internal network from
downloading a virus from the Internet:
1
2
3
4
Go to Firewall > Policy > Internal->External.
Select Edit
to edit this policy.
Select Anti-Virus & Web filter to enable antivirus protection for this policy.
Select a different Content Profile to change how antivirus protection is applied for this
policy.
Select OK to save the changes.
5
FortiGate-800 Installation and Configuration Guide
49
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuration example: Multiple connections to the Internet
NAT/Route mode installation
Registering your FortiGate unit
After purchasing and installing a new FortiGate unit, you can register the unit by going
to the System Update Support page, or using a web browser to connect to
http://support.fortinet.com and selecting Product Registration.
To register, enter your contact information and the serial numbers of the FortiGate
units that you or your organization have purchased. You can register multiple
FortiGate units in a single session without re-entering your contact information.
For more information about registration, see “Registering FortiGate units” on
Configuring virus and attack definition updates
You can go to the System Update page to configure the FortiGate unit to automatically
check whether new versions of the virus definitions and attack definitions are
available. If it finds new versions, the FortiGate unit automatically downloads and
installs the updated definitions.
The FortiGate unit uses HTTPS on port 8890 to check for updates. The FortiGate
external interface must have a path to the FortiResponse Distribution Network (FDN)
using port 8890.
For information about configuring automatic virus and attack updates, see “Updating
Configuration example: Multiple connections to the Internet
This section describes some basic routing and firewall policy configuration examples
for a FortiGate unit with multiple connections to the Internet (see Figure 9). In this
topology, the organization operating the FortiGate unit uses two Internet service
providers to connect to the Internet. The FortiGate unit is connected to the Internet
using the external and DMZ interfaces. The external interface connects to gateway 1,
operated by ISP1 and the DMZ interface connects to gateway 2, operated by ISP2.
You can add ping servers to interfaces and configure routing to control how traffic
uses each Internet connection. With this routing configuration, you can create firewall
policies to support multiple Internet connections.
This section provides some examples of routing and firewall configurations for the
FortiGate unit for multiple Internet connections. To use the information in this section,
The examples below show how to configure destination-based routing and policy
routing to control different traffic patterns.
•
•
•
•
50
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Configuration example: Multiple connections to the Internet
Figure 9: Example multiple Internet connection configuration
Internal Network
192.168.1.0
Internal
192.168.1.99
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
Port3
2.2.2.2
External
1.1.1.2
FortiGate-800
Gateway #1: 1.1.1.1
Gateway #2: 2.2.2.1
ISP1
ISP2
External Network #1
100.100.100.0
External Network #2
200.200.200.0
Internet
Configuring ping servers
Use the following procedure to make gateway 1 the ping server for the external
interface and gateway 2 the ping server for the DMZ interface.
1
2
Go to System > Network > Interface.
For the external interface, select Modify
.
•
•
•
Ping Server: 1.1.1.1
Select Enable Ping Server
Select OK
3
For the DMZ interface, select Modify
.
•
•
•
Ping Server: 2.2.2.1
Select Enable Ping Server
Select OK
FortiGate-800 Installation and Configuration Guide
51
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuration example: Multiple connections to the Internet
NAT/Route mode installation
Using the CLI
1
2
Add a ping server to the external interface.
set system interface external config detectserver 1.1.1.1
gwdetect enable
Add a ping server to the DMZ interface.
set system interface dmz config detectserver 2.2.2.1 gwdetect
enable
Destination-based routing examples
This section describes the following destination-based routing examples:
•
•
•
Primary and backup links to the Internet
Use the following procedure to add a default destination-based route that directs all
outgoing traffic to gateway 1. If gateway 1 fails, all connections are redirected to
gateway 2. Gateway 1 is the primary link to the Internet and gateway 2 is the backup
link.
1
2
Go to System > Network > Routing Table.
Select New.
•
•
•
•
•
•
•
Destination IP: 0.0.0.0
Mask: 0.0.0.0
Gateway #1: 1.1.1.1
Gateway #2: 2.2.2.1
Device #1: external
Device #2: dmz
Select OK.
Using the CLI
1
Add the route to the routing table.
set system route number 0 dst 0.0.0.0 0.0.0.0 gw1 1.1.1.1
dev1 external gw2 2.2.2.1 dev2 dmz
Table 13: Route for primary and backup links
Destination IP Mask
0.0.0.0 0.0.0.0
Gateway #1
Device #1
Gateway #2
Device #2
1.1.1.1
external
2.2.2.1
dmz
52
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Configuration example: Multiple connections to the Internet
Load sharing
You can also configure destination routing to direct traffic through both gateways at
the same time. If users on the internal network connect to the networks of ISP1 and
ISP2, you can add routes for each of these destinations. Each route can include a
backup destination to the network of the other ISP.
Table 14: Load sharing routes
Destination IP‘ Mask
Gateway #1 Device #1
Gateway #2 Device #2
100.100.100.0 255.255.255.0 1.1.1.1
200.200.200.0 255.255.255.0 2.2.2.1
external
dmz
2.2.2.1
1.1.1.1
dmz
external
The first route directs all traffic destined for the 100.100.100.0 network out the external
interface to gateway 1 with the IP address 1.1.1.1. If this router is down, traffic
destined for the 100.100.100.0 network is redirected out the DMZ interface to gateway
2 with the IP address 2.2.2.1.
Load sharing and primary and secondary connections
You can combine these routes into a more complete multiple Internet connection
configuration. In the topology shown in Figure 9 on page 51, users on the internal
network connect to the Internet to access web pages and other Internet resources.
However, they can also connect to services, such as email, provided by their ISPs.
You can combine the routes described in the previous examples to provide users with
a primary and backup connection to the Internet, while at the same time routing traffic
to each ISP network as required.
The routing described below allows a user on the internal network to connect to the
Internet through gateway 1 and ISP1. At the same time, this user can also connect
through gateway 2 to access a mail server maintained by ISP2.
To add the routes using the web-based manager
1
2
Go to System > Network > Routing Table.
Select New to add the default route for primary and backup links to the Internet.
•
•
•
•
•
•
•
Destination IP: 0.0.0.0
Mask: 0.0.0.0
Gateway #1: 1.1.1.1
Gateway #2: 2.2.2.1
Device #1: external
Device #2: dmz
Select OK.
FortiGate-800 Installation and Configuration Guide
53
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuration example: Multiple connections to the Internet
NAT/Route mode installation
3
Select New to add a route for connections to the network of ISP1.
•
•
•
•
•
•
Destination IP: 100.100.100.0
Mask: 255.255.255.0
Gateway #1: 1.1.1.1
Gateway #2: 2.2.2.1
Device #1: external
Device #2: dmz
4
Select New to add a route for connections to the network of ISP2.
•
•
•
•
•
•
•
Destination IP: 200.200.200.0
Mask: 255.255.255.0
Gateway #1: 2.2.2.1
Gateway #2: 1.1.1.1
Device #1: dmz
Device #2: external
Select OK.
5
Change the order of the routes in the routing table to move the default route below the
other two routes.
•
•
For the default route select Move to
.
Type a number in the Move to field to move this route to the bottom of the list.
If there are only 3 routes, type 3.
Select OK.
•
To add the routes using the CLI
1
2
3
Add the route for connections to the network of ISP2.
set system route number 1 dst 100.100.100.0 255.255.255.0 gw1
1.1.1.1 dev1 external gw2 2.2.2.1 dev2 dmz
Add the route for connections to the network of ISP1.
set system route number 2 dst 200.200.200.0 255.255.255.0 gw1
2.2.2.1 dev1 dmz gw2 1.1.1.1 dev2 external
Add the default route for primary and backup links to the Internet.
set system route number 3 dst 0.0.0.0 0.0.0.0 gw1 1.1.1.1
dev1 external gw2 2.2.2.1 dev2 dmz
The routing table should have routes arranged as shown in Table 15.
Table 15: Example combined routing table
Destination IP‘ Mask
Gateway #1 Device #1
Gateway #2 Device #2
100.100.100.0 255.255.255.0 1.1.1.1
200.200.200.0 255.255.255.0 2.2.2.1
external
dmz
2.2.2.1
1.1.1.1
2.2.2.1
dmz
external
dmz
0.0.0.0
0.0.0.0
1.1.1.1
external
54
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Configuration example: Multiple connections to the Internet
Policy routing examples
Adding policy routing increases your control over how packets are routed. Policy
routing works on top of destination-based routing. To increase the control provided by
destination-based routing, configure destination-based routing first and then build
policy routing on top.
For example, if you use destination-based routing to configure routing for dual Internet
connections, you can use policy routing to better control which traffic is sent to which
destination route. This section describes the following policy routing examples, based
on topology similar to that shown in Figure 9 on page 51. Differences are noted in
each example.
The policy routes described in these examples work only if you have already defined
destination routes similar to those described in the previous section.
•
•
Routing traffic from internal subnets to different external networks
If the FortiGate unit provides Internet access for multiple internal subnets, you can use
policy routing to control the route that traffic from each network takes to the Internet.
For example, if the internal network includes the subnets 192.168.10.0 and
192.168.20.0 you can enter the following policy routes:
1
2
Enter the following command to route traffic from the 192.168.10.0 subnet to the
100.100.100.0 external network:
set system route policy 1 src 192.168.10.0 255.255.255.0 dst
100.100.100.0 255.255.255.0 gw 1.1.1.1
Enter the following command to route traffic from the 192.168.20.0 subnet to the
200.200.200.0 external network:
set system route policy 2 src 192.168.20.0 255.255.255.0 dst
200.200.200.0 255.255.255.0 gw 2.2.2.1
Routing a service to an external network
You can use the following policy routes to direct all HTTP traffic (using port 80) to one
external network and all other traffic to the other external network.
1
2
Enter the following command to route all HTTP traffic using port 80 to the next hop
gateway with IP address 1.1.1.1.
set system route policy 1 src 0.0.0.0 0.0.0.0 dst 0.0.0.0
0.0.0.0 protocol 6 port 80 80 gw 1.1.1.1
Enter the following command to route all other traffic to the next hop gateway with IP
address 2.2.2.1.
Set system route policy 2 src 0.0.0.0 0.0.0.0 dst 0.0.0.0
0.0.0.0 gw 2.2.2.1
FortiGate-800 Installation and Configuration Guide
55
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuration example: Multiple connections to the Internet
NAT/Route mode installation
Firewall policy example
Firewall policies control how traffic flows through the FortiGate unit. After you
configure routing for multiple Internet connections, you must create firewall policies.
Firewall policies control which traffic is allowed through the FortiGate unit and the
interfaces that this traffic can connect through.
For traffic originating on the internal network to be able to connect to the Internet
through both Internet connections, you must add redundant policies from the internal
interface to each interface that connects to the Internet. After you add these policies,
the routing configuration controls which Internet connection is used.
Adding a redundant default policy
Figure 9 on page 51 shows a FortiGate unit connected to the Internet using its internal
and DMZ interfaces. The default policy allows all traffic from the internal network to
connect to the Internet through the external interface. If you add a similar policy to the
internal to DMZ policy list, this policy allows all traffic from the internal network to
connect to the Internet through the DMZ interface. With both these policies added to
the firewall configuration, the routing configuration determines which Internet
connection the traffic from the internal network uses. For more information about the
To add a redundant default policy
1
2
3
Go to Firewall > Policy > Internal->DMZ.
Select New.
Configure the policy to match the default policy.
Source
Destination
Schedule
Service
Action
Internal_All
DMZ_All
Always
ANY
Accept
NAT
Select NAT.
4
Select OK to save the changes.
Adding more firewall policies
In most cases your firewall configuration includes more than the default policy.
However, the basic premise of creating redundant policies applies even as the firewall
configuration becomes more complex. To configure the FortiGate unit to use multiple
Internet connections you must add duplicate policies for connections between the
internal network and both interfaces connected to the Internet. As well, as you add
redundant policies, you must arrange them in both policy lists in the same order.
56
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
NAT/Route mode installation
Configuration example: Multiple connections to the Internet
Restricting access to a single Internet connection
In some cases you might want to limit some traffic to being able to use only one
Internet connection. For example, in the topology shown in Figure 9 on page 51 the
organization might want its mail server to be able to connect to only the SMTP mail
server of ISP1. To do this, you add a single Internal->External firewall policy for
SMTP connections. Because redundant policies have not been added, SMTP traffic
from the Internet network is always connected to ISP1. If the connection to ISP1 fails
the SMTP connection is not available.
FortiGate-800 Installation and Configuration Guide
57
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuration example: Multiple connections to the Internet
NAT/Route mode installation
58
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Transparent mode installation
This chapter describes how to install your FortiGate unit in Transparent mode. If you
want to install the FortiGate unit in NAT/Route mode, see “NAT/Route mode
installation” on page 41. If you want to install two or more FortiGate units in HA mode,
This chapter describes:
•
•
•
•
•
•
•
Preparing to configure Transparent mode
Use Table 16 to gather the information that you need to customize Transparent mode
settings.
Table 16: Transparent mode settings
Administrator Password:
IP:
_____._____._____._____
_____._____._____._____
_____._____._____._____
Netmask:
Default Gateway:
Management IP
DNS Settings
The management IP address and netmask must be valid for the network
from which you will manage the FortiGate unit. Add a default gateway if the
FortiGate unit must connect to a router to reach the management
computer.
Primary DNS Server:
_____._____._____._____
Secondary DNS Server: _____._____._____._____
FortiGate-800 Installation and Configuration Guide
59
Download from Www.Somanuals.com. All Manuals Search And Download.
Using the setup wizard
Transparent mode installation
Using the setup wizard
From the web-based manager, you can use the setup wizard to begin the initial
configuration of the FortiGate unit. For information about connecting to the web-based
Changing to Transparent mode using the web-based manager
The first time that you connect to the FortiGate unit, it is configured to run in
NAT/Route mode.
To switch to Transparent mode using the web-based manager
1
2
3
4
Go to System > Status.
Select Change to Transparent Mode.
Select Transparent in the Operation Mode list.
Select OK.
To reconnect to the web-based manager, change the IP address of the management
computer to 10.10.10.2. Connect to the internal or DMZ interface and browse to
https:// followed by the Transparent mode management IP address. The default
FortiGate Transparent mode management IP address is 10.10.10.1.
Starting the setup wizard
1
2
3
Select Easy Setup Wizard (the middle button in the upper-right corner of the
web-based manager).
Use the information that you gathered in Table 16 on page 59 to fill in the wizard fields.
Select the Next button to step through the wizard pages.
Confirm your configuration settings, and then select Finish and Close.
Reconnecting to the web-based manager
If you changed the IP address of the management interface while you were using the
setup wizard, you must reconnect to the web-based manager using the new IP
address. Browse to https:// followed by the new IP address of the management
interface. Otherwise, you can reconnect to the web-based manager by browsing to
https://10.10.10.1. If you connect to the management interface through a router, make
sure that you have added a default gateway for that router to the management IP
default gateway field.
60
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Using the front control buttons and LCD
Using the front control buttons and LCD
This procedure describes how to use the control buttons and LCD to configure
Transparent mode IP addresses. Use the information that you recorded in Table 16 on
page 59 to complete this procedure. Starting with Main Menu displayed on the LCD,
use the front control buttons and LCD:
1
2
Press Enter three times to configure the
management interface IP address.
Set the manager interface IP address.
Use the up and down arrow keys to increase or decrease the value of each IP address
digit. Press Enter to move to the next digit. Press Esc to move to the previous digit.
Note: When you enter an IP address, the LCD always shows three digits for each part of the
address. For example, the IP address 192.168.100.1 appears on the LCD as 192.168.100.001.
The IP address 192.168.23.45 appears as 192.168.023.045.
3
4
5
6
7
8
After you set the last digit of the IP address, press Enter.
Use the down arrow to highlight Netmask.
Press Enter and set the management IP Netmask.
After you set the last digit of the Netmask, press Enter.
Press Esc to return to the Main Menu.
Repeat these steps to configure the default gateway, if required.
Using the command line interface
As an alternative to the setup wizard, you can begin the initial configuration of the
FortiGate unit using the command line interface (CLI). To connect to the CLI, see
“Connecting to the command line interface (CLI)” on page 29. Use the information that
you gathered in Table 16 on page 59 to complete the following procedures.
Changing to Transparent mode using the CLI
1
2
Make sure that you are logged into the CLI.
Switch to Transparent mode. Enter:
set system opmode transparent
After a few seconds, the login prompt appears.
3
4
Type adminand press Enter.
The following prompt appears:
Type ? for a list of commands.
Confirm that the FortiGate unit has switched to Transparent mode. Enter:
get system status
The CLI displays the status of the FortiGate unit. The last line shows the current
operation mode.
Operation mode: Transparent
FortiGate-800 Installation and Configuration Guide
61
Download from Www.Somanuals.com. All Manuals Search And Download.
Completing the configuration
Transparent mode installation
Configuring the Transparent mode management IP address
1
2
Make sure that you are logged into the CLI.
Set the management IP address and netmask to the IP address and netmask that you
recorded in Table 16 on page 59. Enter:
set system management ip <IP address> <netmask>
Example
set system management ip 10.10.10.2 255.255.255.0
3
Confirm that the address is correct. Enter:
get system management
The CLI lists the management IP address and netmask.
Configure the Transparent mode default gateway
1
2
Make sure that you are logged into the CLI.
Set the default route to the default gateway that you recorded in Table 16 on page 59.
Enter:
set system route number <number> gw1 <IP address>
Example
set system route number 0 gw1 204.23.1.2
Completing the configuration
Use the information in this section to complete the initial configuration of the FortiGate
unit.
Setting the date and time
For effective scheduling and logging, the FortiGate system date and time must be
accurate. You can either manually set the system date and time or configure the
FortiGate unit to automatically keep its time correct by synchronizing with a Network
Time Protocol (NTP) server.
For information about setting the FortiGate system date and time, see “Setting system
Enabling antivirus protection
You can protect users on your internal network from downloading a virus from the
Internet.
1
2
3
4
5
Go to Firewall > Policy > Internal->External.
Select Edit
to edit this policy.
Select Anti-Virus & Web filter to enable antivirus protection for this policy.
Select the Scan Content Profile.
Select OK to save the changes.
62
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Connecting the FortiGate unit to your networks
Registering your FortiGate unit
After purchasing and installing a new FortiGate unit, you can register the unit by going
to the System Update Support page, or using a web browser to connect to
http://support.fortinet.com and selecting Product Registration.
To register, enter your contact information and the serial numbers of the FortiGate
units that you or your organization have purchased. You can register multiple
FortiGate units in a single session without re-entering your contact information.
For more information about registration, see “Registering FortiGate units” on
Configuring virus and attack definition updates
You can configure the FortiGate unit to automatically check whether new versions of
the virus definitions and attack definitions are available. If it finds new versions, the
FortiGate unit automatically downloads and installs the updated definitions.
The FortiGate unit uses HTTPS on port 8890 to check for updates. The FortiGate
external interface must have a path to the FortiResponse Distribution Network (FDN)
using port 8890.
For information about configuring automatic virus and attack updates, see “Updating
Connecting the FortiGate unit to your networks
After you complete the initial configuration of the FortiGate-800 unit, you can connect
the FortiGate-800 between your internal network and the Internet and to other
networks.
There are 4 10/100/1000 Base-TX connectors on the FortiGate-800:
•
•
•
•
Internal for connecting to your internal network,
External for connecting to your public switch or router and the Internet,
DMZ and HA for connecting other networks,
HA is also used to connect to another FortiGate-500 for high availability (see “High
There are 4 10/100 Base-TX connectors on the FortiGate-800:
•
Interfaces 1 to 4 for connecting up to four additional networks to your
FortiGate-800.
To connect the FortiGate-800 unit running in Transparent mode:
1
2
Connect the Internal interface to the hub or switch connected to your internal network.
Connect the External interface to the public switch or router provided by your Internet
Service Provider.
3
Optionally connect the DMZ and HA interfaces and interfaces 1 to 4 to hubs or
switches connected to your other networks.
FortiGate-800 Installation and Configuration Guide
63
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode configuration examples
Transparent mode installation
Figure 10: FortiGate-800 Transparent mode connections
Internal Network
Other Network
Hub or Switch
Internal
DMZ
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
Interface 4
External
FortiGate-800
Public Switch
or Router
Internet
Other Network
Transparent mode configuration examples
A FortiGate unit operating in Transparent mode still requires a basic configuration to
operate as a node on the IP network. As a minimum, the FortiGate unit must be
configured with an IP address and subnet mask. These are used for management
access and to allow the unit to receive antivirus and definitions updates. Also, the unit
must have sufficient route information to reach:
•
•
•
the management computer,
The FortiResponse Distribution Network (FDN),
a DNS server.
A route is required whenever the FortiGate unit connects to a router to reach a
destination. If all the destinations are located on the external network, you might be
required to enter only a single default route. If, however, the network topology is more
complex, you might be required to enter one or more static routes in addition to the
default route.
64
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Transparent mode configuration examples
This section describes:
•
•
•
•
Default routes and static routes
To create a route to a destination, you need to define an IP prefix which consists of an
IP network address and a corresponding netmask value. A default route matches any
prefix and forwards traffic to the next hop router (otherwise known as the default
gateway). A static route matches a more specific prefix and forwards traffic to the next
hop router.
Default route example
:
IP Prefix 0.0.0.0 (IP address)
0.0.0.0 (Netmask)
Next Hop 192.168.1.2
Static Route example
IP Prefix 172.100.100.0 (IP address)
255.255.255.0 (Netmask)
Next Hop 192.168.1.2
Note: When adding routes to the FortiGate unit, add the default route last so that it appears on
the bottom of the route list. This makes sure that the unit attempts to match more specific routes
before selecting the default route.
Example default route to an external network
Figure 11 shows a FortiGate unit where all destinations, including the management
computer, are located on the external network. To reach these destinations, the
FortiGate unit must connect to the “upstream” router leading to the external network.
To facilitate this connection, you must enter a single default route that points to the
upstream router as the next hop/default gateway.
FortiGate-800 Installation and Configuration Guide
65
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode configuration examples
Transparent mode installation
Figure 11: Default route to an external network
FortiResponse
Distribution
DNS
Network (FDN)
Internet
Management
Computer
Upstream
Router
Gateway IP 192.168.1.2
DMZ
Management IP 192.168.1.1
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
FortiGate-800
8
Internal Network
General configuration steps
1
2
3
Set the FortiGate unit to operate in Transparent mode.
Configure the Management IP address and Netmask of the FortiGate unit.
Configure the default route to the external network.
66
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Transparent mode configuration examples
Web-based manager example configuration steps
To configure basic Transparent mode settings and a default route using the
web-based manager
1
2
3
Go to System > Status.
•
•
•
Select Change to Transparent Mode.
Select Transparent in the Operation Mode list.
Select OK.
The FortiGate unit changes to Transparent mode.
Go to System > Network > Management.
•
Change the Management IP and Netmask:
IP: 192.168.1.1
Mask: 255.255.255.0
Select Apply.
•
Go to System > Network > Routing.
•
Select New to add the default route to the external network.
Destination IP: 0.0.0.0
Mask: 0.0.0.0
Gateway: 192.168.1.2
Select OK.
•
CLI configuration steps
To configure the Fortinet basic settings and a default route using the CLI:
1
2
3
Change the system to operate in Transparent Mode.
set system opmode transparent
Add the Management IP address and Netmask.
set system management ip 192.168.1.1 255.255.255.0
Add the default route to the external network.
set system route number 1 gw1 192.168.1.2
Example static route to an external destination
Figure 12 shows a FortiGate unit that requires routes to the FDN located on the
external network. The Fortigate unit does not require routes to the DNS servers or
management computer because they are located on the internal network.
To connect to the FDN, you typically enter a single default route to the external
network. However, for additional security, you can enter static routes to a specific
FortiResponse server in addition to a default route to the external network. If the static
route becomes unavailable (for example, because the IP address of the
FortiResponse server changes) the FortiGate unit can still receive antivirus and NIDS
updates from the FDN using the default route.
FortiGate-800 Installation and Configuration Guide
67
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode configuration examples
Transparent mode installation
Note: This is an example configuration only. To configure a static route, you require a
destination IP address.
Figure 12: Static route to an external destination
24.102.233.5
FortiResponse
Distribution
Internet
Network (FDN)
Upstream
Router
DNS
Gateway IP 192.168.1.2
DMZ
Management IP 192.168.1.1
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
FortiGate-800
8
Internal Network
Management
Computer
General configuration steps
1
2
3
4
Set the FortiGate unit to operate in Transparent mode.
Configure the Management IP address and Netmask of the FortiGate unit.
Configure the static route to the FortiResponse server.
Configure the default route to the external network.
Web-based manager example configuration steps
To configure the basic FortiGate settings and a static route using the web-based
manager:
1
Go to System > Status.
•
•
•
Select Change to Transparent Mode.
Select Transparent in the Operation Mode list.
Select OK.
The FortiGate unit changes to Transparent mode.
68
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Transparent mode configuration examples
2
Go to System > Network > Management.
•
Change the Management IP and Netmask:
IP: 192.168.1.1
Mask: 255.255.255.0
Select Apply.
•
3
Go to System > Network > Routing.
•
Select New to add the static route to the FortiResponse server.
Destination IP: 24.102.233.5
Mask: 255.255.255.0
Gateway: 192.168.1.2
Select OK.
•
•
Select New to add the default route to the external network.
Destination IP: 0.0.0.0
Mask: 0.0.0.0
Gateway: 192.168.1.2
Select OK.
•
CLI configuration steps
To configure the Fortinet basic settings and a static route using the CLI:
1
2
3
Set the system to operate in Transparent Mode.
set system opmode transparent
Add the Management IP address and Netmask.
set system management ip 192.168.1.1 255.255.255.0
Add the static route to the primary FortiResponse server.
set system route number 1 dst 24.102.233.5 255.255.255.0 gw1
192.168.1.2
4
Add the default route to the external network.
set system route number 2 gw1 192.168.1.2
Example static route to an internal destination
Figure 13 shows a FortiGate unit where the FDN is located on an external subnet and
the management computer is located on a remote, internal subnet. To reach the FDN,
you need to enter a single default route that points to the upstream router as the next
hop/default gateway. To reach the management computer, you need to enter a single
static route that leads directly to it. This route points to the internal router as the next
hop. (No route is required for the DNS servers because they are on the same layer 3
subnet as the FortiGate unit.)
FortiGate-800 Installation and Configuration Guide
69
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode configuration examples
Transparent mode installation
Figure 13: Static route to an internal destination
FortiResponse
Distribution
Internet
Network (FDN)
Upstream
Router
DNS
Gateway IP 192.168.1.2
DMZ
Management IP 192.168.1.1
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
FortiGate-800
8
Internal Network A
Gateway IP
192.168.1.3
Internal
Router
Internal Network B
Management Computer
172.16.1.11
General configuration steps
1
2
3
4
Set the unit to operate in Transparent mode.
Configure the Management IP address and Netmask of the FortiGate unit.
Configure the static route to the management computer on the internal network.
Configure the default route to the external network.
70
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode installation
Transparent mode configuration examples
Web-based manager example configuration steps
To configure the FortiGate basic settings, a static route, and a default route using the
web-based manager:
1
2
3
Go to System > Status.
•
•
•
Select Change to Transparent Mode.
Select Transparent in the Operation Mode list.
Select OK.
The FortiGate unit changes to Transparent mode.
Go to System > Network > Management.
•
Change the Management IP and Netmask:
IP: 192.168.1.1
Mask: 255.255.255.0
Select Apply.
•
Go to System > Network > Routing.
•
Select New to add the static route to the management computer.
Destination IP: 172.16.1.11
Mask: 255.255.255.0
Gateway: 192.168.1.3
Select OK.
•
•
Select New to add the default route to the external network.
Destination IP: 0.0.0.0
Mask: 0.0.0.0
Gateway: 192.168.1.2
Select OK.
•
CLI configuration steps
To configure the FortiGate basic settings, a static route, and a default route using the
CLI:
1
2
3
Set the system to operate in Transparent Mode.
set system opmode transparent
Add the Management IP address and Netmask.
set system management ip 192.168.1.1 255.255.255.0
Add the static route to the management computer.
set system route number 1 dst 172.16.1.11 255.255.255.0 gw1
192.168.1.3
4
Add the default route to the external network.
set system route number 2 gw1 192.168.1.2
FortiGate-800 Installation and Configuration Guide
71
Download from Www.Somanuals.com. All Manuals Search And Download.
Transparent mode configuration examples
Transparent mode installation
72
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
High availability
Fortinet achieves high availability (HA) using redundant hardware and the FortiGate
Clustering Protocol (FGCP). Each FortiGate unit in an HA cluster uses the same
overall security policy and shares the same configuration settings. You can add up to
32 FortiGate units to an HA cluster. Each FortiGate unit in an HA cluster must be the
same model and must run the same FortiOS firmware image.
FortiGate HA is device redundant. If one of the FortiGate units in an HA cluster fails,
1
all functions, all established firewall connections, and all IPSec VPN sessions are
maintained by the other FortiGate units in the HA cluster.
You manage the cluster by connecting to the cluster web-based manager from any
cluster interface configured for HTTPS administrative access. You can also manage
the cluster by connecting to the cluster CLI from any cluster interface configured for
SSH administrative access. All configuration changes made to the cluster are
automatically synchronized to all cluster members.
From the web-based manager you can monitor the status and log messages of the
cluster and of each of the FortiGate units in the cluster. You can also monitor the
cluster by using an SNMP manager to get SNMP information from or receive traps for
any cluster interface configured for SNMP administrative access.
The FortiGate units in the cluster use dedicated HA ethernet interfaces to
communicate cluster session information, synchronize the cluster configuration, and
report individual system status.The units in the cluster constantly communicate HA
status information to make sure that the cluster is operating properly. For this reason,
the connection between the HA interface of all the FortiGate units in the cluster must
be well maintained. An interruption of this communication can have unpredictable
results.
Note: The HA interfaces of the FortiGate units in a cluster are assigned IP addresses during
cluster negotiation. These IP addresses cannot be viewed using the web-based manager or the
CLI. Attempting to change the IP address of an HA interface using the web-based manager or
the CLI has no effect on the IP address assigned during cluster negotiation. HA interfaces only
accept connections used for HA communication between units in the cluster. You cannot
connect to the HA interfaces to manage the cluster or to manage individual FortiGate units in
the cluster.
FortiGate units can be configured to operate in active-passive (A-P) or active-active
(A-A) HA mode. Active-active and active-passive clusters can run in either NAT/Route
or Transparent mode.
1.HA does not provide session failover for PPPoE, DHCP, PPTP, and L2TP services.
FortiGate-800 Installation and Configuration Guide
73
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring an HA cluster
High availability
An active-passive (A-P) HA cluster, also referred to as hot standby HA, consists of a
primary FortiGate unit that processes traffic, and one or more subordinate FortiGate
units. The subordinate FortiGate units are connected to the network and to the
primary FortiGate unit but do not process traffic.
Active-active (A-A) HA load balances virus scanning among all the FortiGate units in
the cluster. An active-active HA cluster consists of a primary FortiGate unit that
processes traffic and subordinate units that also process traffic. The primary FortiGate
unit uses a load balancing algorithm to distribute virus scanning to all the FortiGate
units in the HA cluster.
This chapter provides an overview of HA functionality and describes how to configure
and manage HA clusters in NAT/Route mode and Transparent mode.
•
•
•
•
Configuring an HA cluster
Use the following procedures to create an HA cluster consisting of two or more
FortiGate units. These procedures describe how to configure each of the FortiGate
units for HA operation and then how to connect the FortiGate units to form a cluster.
Once the cluster is connected you can configure it in the same way as you would
configure a standalone FortiGate unit.
This section describes:
•
•
•
Configuring FortiGate units for HA operation
Each FortiGate unit in the cluster must have the same HA configuration. Use the
following procedure to configure each FortiGate unit for HA operation.
To configure a FortiGate unit for HA operation
Power on the FortiGate unit that you want to configure.
Connect to the web-based manager.
1
2
3
Give the FortiGate unit a unique host name.
individual cluster units.
4
5
Go to System > Config > HA.
Select HA.
74
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Configuring an HA cluster
6
Select the HA mode.
Select Active-Active mode to create an Active-Active HA cluster.
Select Active-Passive mode to create an Active-Passive HA cluster.
The HA mode must be the same for all FortiGate units in the HA cluster.
7
8
9
Enter and confirm a password for the HA cluster.
The password must be the same for all FortiGate units in the HA cluster.
Select a Group ID for the HA cluster.
The Group ID must be the same for all FortiGate units in the HA cluster.
If you are configuring Active-Active HA, select a schedule.
The schedule controls load balancing among the FortiGate units in the active-active
HA cluster. The schedule must be the same for all FortiGate units in the HA cluster.
None
Hub
No load balancing. Select None when the cluster interfaces are
connected to load balancing switches.
Load balancing for hubs. Select Hub if the cluster interfaces are
connected to a hub. Traffic is distributed to units in a cluster based on
the Source IP and Destination IP of the packet.
Least Connection
Round Robin
Least connection load balancing. If the FortiGate units are connected
using switches, select Least connection to distribute traffic to the cluster
unit with the fewest concurrent connections.
Round robin load balancing. If the FortiGate units are connected using
switches, select round robin to distribute traffic to the next available
cluster unit.
Weighted Round
Robin
Weighted round robin load balancing. Similar to round robin, but
weighted values are assigned to each of the units in a cluster based on
their capacity and on how many connections they are currently
processing. For example, the primary unit should have a lower weighted
value because it handles scheduling and forwards traffic. Weighted
round robin distributes traffic more evenly because units that are not
processing traffic will be more likely to receive new connections than
units that are very busy.
Random
IP
Random load balancing. If the FortiGate units are connected using
switches, select random to randomly distribute traffic to cluster units.
Load balancing according to IP address. If the FortiGate units are
connected using switches, select IP to distribute traffic to units in a
cluster based on the Source IP and Destination IP of the packet.
IP Port
Load balancing according to IP address and port. If the FortiGate units
are connected using switches, select IP Port to distribute traffic to units
in a cluster based on the Source IP, Source Port, Destination IP, and
Destination port of the packet.
Note: Do not configure Monitor on Interface until the FortiGate cluster is connected and
10
Select Apply.
The FortiGate unit negotiates to establish an HA cluster. When you select apply you
might temporarily loose connectivity with the FortiGate unit as the HA cluster
negotiates.
FortiGate-800 Installation and Configuration Guide
75
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring an HA cluster
High availability
Figure 14: Example Active-Active HA configuration
11
If you are configuring a NAT/Route mode cluster, power off the FortiGate unit and then
repeat this procedure for all the FortiGate units in the cluster. Once all the units are
12
If you are configuring a Transparent mode cluster, reconnect to the web-based
manager.
You might have to wait a few minutes before you can reconnect.
13
14
Go to System > Status.
Select Change to Transparent Mode and select OK to switch the FortiGate unit to
Transparent mode.
15
16
Power off the FortiGate unit.
Repeat this procedure for all the FortiGate units in the cluster.
Connecting the cluster
Use the following procedure to connect a cluster operating in NAT/Route mode or
Transparent mode. Connect the FortiGate units in the cluster to each other and to
your network. You must connect all matching interfaces in the cluster to the same hub
or switch. Then you must connect these interfaces to their networks using the same
hub or switch.
Fortinet recommends using switches for all cluster connections for the best
performance.
The FortiGate units in the cluster use dedicated HA ethernet interfaces to
communicate HA status information to make sure the cluster is functioning properly.
For this reason, the connection between the HA interfaces of all the FortiGate units in
the cluster must be well maintained. An interruption of this communication can have
unpredictable results.
76
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Configuring an HA cluster
Inserting an HA cluster into your network temporarily interrupts communications on
the network because new physical connections are being made to route traffic through
the cluster. Also, starting the cluster interrupts network traffic until the individual
FortiGate units in the cluster are functioning and the cluster completes negotiation.
Cluster negotiation normally takes just a few seconds. During system startup and
negotiation all network traffic is dropped.
To connect the cluster
1
Connect the cluster units:
•
•
•
•
•
Connect the internal interfaces of each FortiGate unit to a switch or hub connected
to your internal network.
Connect the external interfaces of each FortiGate unit to a switch or hub connected
to your external network.
Optionally connect the DMZ interfaces of each FortiGate unit to a switch or hub
connected to your DMZ network.
Optionally connect ports 1 to 4 of each FortiGate unit to switches or hubs
connected to other networks.
Connect the HA interfaces of the FortiGate units to another switch or hub.
Figure 15: HA network configuration
Internal Network
Internal
External
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
HA
Hub or
Switch
Hub or
Switch
HA
Router
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
Internal
External
Internet
FortiGate-800 Installation and Configuration Guide
77
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing an HA cluster
High availability
2
Power on all the FortiGate units in the cluster.
As the units power on they negotiate to choose the primary cluster unit and the
subordinate units. This negotiation occurs with no user intervention.
When negotiation is complete the you can configure the cluster as if it was a single
“Transparent mode installation” on page 59 to configure the cluster interfaces,
configure your network, and complete the cluster configuration.
Note: Do not change the HA interface IP address. The HA interface of each FortiGate unit in the
cluster is assigned an IP address during cluster negotiation.
the cluster.
Adding a new FortiGate unit to a functioning cluster
You can add a new FortiGate unit to a functioning cluster at any time. The new
FortiGate unit must be the same model as the other units in the cluster and must be
running the same firmware version.
To add a new unit to the cluster
1
2
Configure the new FortiGate unit for HA operation with the same HA configuration as
the other units in the cluster.
If the cluster is running in Transparent mode, change the operating mode of the new
FortiGate unit to Transparent mode.
3
4
Connect the new FortiGate unit to the cluster.
Power on the new FortiGate unit.
When the unit powers on it negotiates to join the cluster. After it joins the cluster, the
cluster synchronizes the new unit configuration with the configuration of the primary
unit.
Managing an HA cluster
The configurations of all of the FortiGate units in the cluster are synchronized so that
the FortiGate units can function as a cluster. Because of this synchronization, you
manage the HA cluster instead of managing the individual FortiGate units in the
cluster. You manage the cluster by connecting to the web-based manager or CLI
using any interface configured for management access (except the HA interface). All
units in the cluster are synchronized with the same interface IP addresses.
Connecting to any interface IP address configured for management access connects
to that cluster interface, which automatically connects you to the primary FortiGate
unit in the cluster.
78
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Managing an HA cluster
You can also use SNMP to manage the cluster by configuring a cluster interface for
SNMP administrative access. Using an SNMP manager you can get cluster
configuration information and receive traps.
Note: You cannot connect to the HA interfaces to manage the cluster or to manage individual
FortiGate units in the cluster.
You can change the cluster configuration by connecting to the cluster and changing
the configuration of the primary FortiGate unit. The cluster automatically synchronizes
all configuration changes to the subordinate units in the cluster as the changes are
made.
The only configuration change that is not synchronized is the FortiGate host name.
You can give each cluster unit a unique host name to help to identify cluster members.
For information about changing the host name of cluster members, see “Changing
You can use the web-based manager to monitor the status and logs of individual
You can manage individual cluster units by using SSH to connect to the CLI of the
cluster. From the CLI you can use the execute ha managecommand to connect to
the CLI of each unit in the cluster. You can also manage individual cluster units by
using a null-modem cable to connect to the primary cluster unit. From there you can
also use the execute ha managecommand to connect to the CLI of each unit in the
This section describes:
•
•
•
•
•
•
•
•
•
•
•
•
Configuring cluster interface monitoring
Monitor FortiGate interfaces to make sure that they are functioning properly and that
they are connected to their networks. If a monitored interface fails or is disconnected
from its network, the FortiGate unit stops processing traffic and is removed from the
cluster. If you can re-establish traffic flow through the interface (for example, if you
reconnect a disconnected network cable) the FortiGate unit rejoins the cluster.
FortiGate-800 Installation and Configuration Guide
79
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing an HA cluster
High availability
Note: Only monitor interfaces that are connected to networks. You should not configure cluster
interface monitoring until the cluster is connected to your network.
To monitor cluster interfaces
1
2
3
Connect to the cluster and log into the web-based manager.
Go to System > Config > HA.
In the Monitor on Interface section, select the names of the interfaces that you want to
monitor.
4
Select Apply.
The cluster synchronizes this configuration change to all cluster units.
Viewing the status of cluster members
The web-based manager lists the serial numbers of all the FortiGate units in the
cluster. The primary unit is identified as Local. For each cluster member, the list
includes the up time and status for that cluster member.
To view the status of each cluster member
1
2
Connect to the cluster and log into the web-based manager.
Go to System > Status > Cluster Members.
Figure 16: Example cluster members list
Monitoring cluster members
To monitor health information for each cluster member
1
2
Connect to the cluster and log into the web-based manager.
Go to System > Status > Monitor.
The cluster displays CPU, memory status, and hard disk status for each cluster
member. The primary unit is identified as Local and the other units in the cluster are
listed by serial number.
The display includes bar graphs of current CPU and memory usage as well as line
graphs of CPU and memory usage for the past minute.
80
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Managing an HA cluster
3
Select Sessions & Network.
The cluster displays sessions and network status for each cluster member. The
primary unit is identified as Local and the other units in the cluster are listed by serial
number.
The display includes bar graphs of the current number of sessions and current
network utilization as well as line graphs of session and network utilization usage for
the last minute. The line graph scales are shown in the upper left corner of the graph.
Figure 17: Example cluster CPU, memory, and hard disk display
4
5
Select Virus & Intrusions.
The cluster displays virus and intrusions status for each cluster member. The primary
unit is identified as Local and the other units in the cluster are listed by serial number.
The display includes bar graphs of the number viruses and intrusions detected per
hour as well as line graphs of the number of viruses and intrusions detected for the
last 20 hours.
Select Packets & Bytes.
The cluster displays the number of packets and bytes processed by each cluster
member.
To set the update frequency
Select the automatic refresh interval.
Select Go.
1
2
More frequent updates use more system resources and increase network traffic.
However, this only occurs when you are viewing the display using the web-based
manager.
FortiGate-800 Installation and Configuration Guide
81
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing an HA cluster
High availability
Viewing cluster sessions
To view the cluster communication sessions
1
2
Connect to the cluster and log into the web-based manager.
Go to System > Status > Session.
The session table displays the sessions processed by the primary unit in the cluster,
including HA communication sessions between the primary unit and the subordinate
units. HA communications use:
•
•
Port 702 as the destination port,
From and To IP address on the 10.0.0.0 subnet.
During cluster negotiation, the HA interface of each cluster unit is assigned an IP
address. The IP address of the primary unit is 10.0.0.1. The IP address of the first
subordinate unit is 10.0.0.2. The IP address of the second subordinate unit is
10.0.0.3 and so on.
Viewing and managing cluster log messages
To view log messages for each cluster member
1
2
Connect to the cluster and log into the web-based manager.
Go to Log&Report > Logging.
The cluster displays the primary unit Traffic log, Event log, Attack log, Antivirus log,
Web Filter log, and Email Filter log.
The pull-down list at the upper right of the display identifies the unit for which logs are
displayed. The primary unit is identified as Local and the other units in the cluster are
listed by serial number.
3
4
Select the serial number of one of the units in the cluster to display the logs for this
cluster unit.
You can view logs saved to memory or logs saved to the hard disk, depending on the
configuration of the cluster unit.
For each cluster unit:
•
If the cluster unit logs to memory you can view, search, and manage log
messages. For more information, see “Viewing logs saved to memory” on
•
If the cluster unit contains a hard disk you can view, search, and manage log
messages. For more information, see:
82
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Managing an HA cluster
Monitoring cluster units for failover
If the primary unit in the cluster fails, the units in the cluster renegotiate to select a new
primary unit. Failure of the primary unit results in the following:
•
If SNMP is enabled, the new primary FortiGate unit sends the trap message “HA
switch”. This trap indicates that the primary unit in an HA cluster has failed and has
been replaced with a new primary unit.
•
The cluster contains fewer FortiGate units. The failed primary unit no longer
appears on the Cluster Members list.
•
•
The host name and serial number of the primary cluster unit changes.
The new primary unit logs the following messages to the event log:
HA slave became master
Detected HA member dead
If a subordinate unit fails, the cluster continues to function normally. Failure of a
subordinate unit results in the following:
•
The cluster contains fewer FortiGate units. The failed unit no longer appears on the
Cluster Members list.
•
The master unit logs the following message to the event log:
Detected HA member dead
Viewing cluster communication sessions
1
2
Connect to the cluster and log into the web-based manager.
Go to System > Status > Session.
The session table displays the sessions processed by the primary unit in the cluster,
including HA communication sessions between the primary unit and the subordinate
units. HA communications use:
•
•
Port 702 as the destination port,
From and To IP address on the 10.0.0.0 subnet.
During cluster negotiation, the HA interface of each cluster unit is assigned an IP
address. The IP address of the primary unit is 10.0.0.1. The IP address of the first
subordinate unit is 10.0.0.2. The IP address of the second subordinate unit is
10.0.0.3 and so on.
Managing individual cluster units
You can connect to the CLI of each unit in the cluster. This procedure describes how
to log into the primary unit CLI and from there connect to the CLI of subordinate
cluster units. You log into the subordinate unit with the ha_admin administrator
account. This built-in administrator account gives you read & write permission on the
subordinate unit. For information about administration accounts and permissions, see
FortiGate-800 Installation and Configuration Guide
83
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing an HA cluster
High availability
To manage a cluster unit
1
Use SSH to connect to the cluster and log into the CLI.
Connect to any cluster interface configured for SSH management to log into the
cluster.
You can also use a direct cable connection to log into the primary unit CLI. (To do this
you must know which unit is the primary unit. See “Selecting a FortiGate unit as a
permanent primary unit” on page 87 to control which FortiGate unit becomes the
primary unit).
2
3
Enter the following command followed by a space and type a question mark (?):
execute ha manage
The CLI displays a list of all the subordinate units in the cluster. Each cluster unit is
numbered, starting at 1. The information displayed for each cluster unit includes the
unit serial number and host name of the unit.
Complete the command with the number of the subordinate unit to log into. For
example, to log into subordinate unit 1, enter the following command:
execute ha manage 1
Press Enter and you are connected to and logged into the CLI of the selected
subordinate unit. If this subordinate unit has a different host name, the CLI prompt
changes to this host name. You can use CLI commands to manage this subordinate
unit.
4
Enter the following command to return to the primary unit CLI:
exit
You can use the execute ha managecommand to log into the CLI of any of the
other subordinate units in the cluster.
Changing cluster unit host names
You can identify individual cluster units by giving each unit a unique host name. The
host name is the only configuration setting not synchronized by the cluster.
To set the host name of each cluster member
1
2
Use SSH to connect to the cluster and log into the CLI.
Enter the following command to change the host name of the primary unit:
set system hostname <hostname_str>
3
4
cluster member.
Enter the following command to change the host name of the cluster member.
set system hostname <hostname_str>
5
84
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Managing an HA cluster
Synchronizing the cluster configuration
Cluster synchronization keeps all units in the cluster synchronized with the master
unit. This includes:
•
•
•
•
•
•
•
•
System configuration
Virus definition updates
Attack definition updates
Web filter lists
Email filter lists
Replacement messages
CA certificates
Local certificates
Synchronization with all cluster members occurs in real time as the administrator
changes or adds configuration settings to the primary unit. When the primary unit
downloads antivirus or attack definition updates, all cluster members also receive
these updates.
From each subordinate unit, you can also use the execute ha synchronize
command to manually synchronize its configuration with the primary unit. Using this
command you can synchronize the following:
Table 17: execute ha synchronizekeywords
Keyword
Description
config
Synchronize the FortiGate configuration. This includes normal system
configuration, firewall configuration, VPN configuration and so on stored in the
FortiGate configuration file.
avupd
Synchronize the antivirus engine and antivirus definitions received by the
primary unit from the FortiResponse Distribution Network (FDN).
attackdef
Synchronize NIDS attack definition updates received by the primary unit from
the FDN.
weblists
Synchronize web filter lists added to or changed on the primary unit.
emaillists Synchronize email filter lists added to or changed on the primary unit.
resmsg
ca
Synchronize replacement messages changed on the primary unit.
Synchronize CA certificates added to the primary unit.
Synchronize local certificates added to the primary unit.
Synchronize all of the above.
localcert
all
To manually synchronize the configuration of subordinate units with the
primary unit
1
2
Connect to the cluster and log into the CLI.
Connect to the CLI of each of the subordinate units in the cluster.
For information about connecting to subordinate units, see “Managing individual
3
Use the execute ha synchronizecommand to synchronize the configuration of
the subordinate unit.
FortiGate-800 Installation and Configuration Guide
85
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing an HA cluster
High availability
4
Upgrading firmware
To upgrade the firmware of the FortiGate units in a cluster, you must upgrade the
firmware of each unit separately. In most cases, if you are upgrading to a new
firmware build within the same firmware version (for example, upgrading from 2.50
build069 to 2.50 build070), you can do firmware upgrades using the following
procedure and without interrupting cluster operation. This procedure involves
uploading a new firmware image to the primary unit. Once the firmware image is
uploaded, the primary unit restarts, running the new firmware version. When the
primary unit restarts, it is removed from the cluster, which fails over to a new primary
unit. During the failover, service might be interrupted if the cluster is very busy.
Because of this interruption and in case the firmware upgrade fails, you should do this
procedure only during off peak times when the cluster is not busy.
Note: if you are upgrading to a new firmware version (for example, from 2.50 to 2.80) and in
some cases if you are upgrading to a new maintenance release of the same firmware version,
you must remove individual units from the cluster. For more information, see “Changing the
To upgrade the firmware version for all the units in a cluster
1
2
Copy the firmware image file to your management computer.
Connect to the cluster and log into the web-based manager as the admin
administrative user.
3
4
5
Go to System > Status.
Select Firmware Upgrade
.
Enter the path and filename of the firmware image file, or select Browse and locate the
file.
6
Select OK.
The primary FortiGate unit uploads the firmware image file, upgrades to the new
firmware version, and restarts. When this happens the primary FortiGate unit is
removed from the cluster and one of the subordinate units becomes the new primary
unit. After the failover occurs you can log into the cluster again to connect to the new
primary unit.
7
8
Connect to the cluster and log into the web-based manager as the admin
administrative user.
Once the firmware upgrade is finished for all the FortiGate units in the cluster, log into
the cluster and update antivirus and attack definitions for the cluster. For information
about updating antivirus and attack definitions, see “Manually initiating antivirus and
86
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Advanced HA options
Replacing a FortiGate unit after failover
A failover can occur because of a hardware or software problem. When a failover
occurs, you can attempt to restart the failed FortiGate unit by cycling its power. If the
FortiGate unit starts up correctly, it rejoins the HA cluster, which then continues to
function normally. If the FortiGate unit does not restart normally or does not rejoin the
HA cluster, you must take it out of the network and either reconfigure or replace it.
Once the FortiGate unit is reconfigured or replaced, change its HA configuration to
match the FortiGate unit that failed and reconnect it to the network. The reconnected
FortiGate unit then automatically joins the HA cluster.
Advanced HA options
You can configure the following advanced HA options using the FortiGate CLI:
•
•
•
Selecting a FortiGate unit as a permanent primary unit
In a typical FortiGate cluster configuration, the primary unit is selected automatically.
In some situations, you might want to control which unit becomes the primary unit. You
can select a FortiGate unit as the permanent primary unit by changing its priority and
configuring it to override any other primary unit.
To select a permanent primary unit
1
2
Connect to the CLI of the FortiGate unit that you want to become the permanent
primary unit.
Set the priority of the permanent primary unit. Enter:
set system ha priority <priority_int>
Where <priority_int>is the priority to set for the permanent primary unit. The unit
with the lowest priority becomes the primary unit. The default priority is 128. Set the
priority of the permanent primary unit to a number lower than 128.
For example, to set the priority of the permanent primary unit to 10, enter the
command:
set system ha priority 10
3
4
Make sure that the priority of all the other units in the cluster is higher than the priority
of the permanent primary unit.
The command get system ha modedisplays the current priority of the FortiGate
unit that you are connected to.
Configure the permanent primary unit to override an existing primary unit when it joins
the cluster. Use the following command to configure primary unit override:
FortiGate-800 Installation and Configuration Guide
87
Download from Www.Somanuals.com. All Manuals Search And Download.
Advanced HA options
High availability
set system ha override enable
Enable override so that the permanent primary unit overrides any other primary unit.
For example, if the permanent primary unit shuts down, one of the other units in the
cluster replaces it as the primary unit. When the permanent primary unit is restarted, it
can become the primary unit again only if override is enabled.
Configuring the priority of each FortiGate unit in the cluster
In addition to selecting a permanent primary FortiGate unit, you can set the priorities
of each of the subordinate units in the cluster to control the failover path. For example,
if you have three FortiGate units in an HA cluster and you configured one as the
permanent primary FortiGate unit, you might always want the cluster to failover to the
same FortiGate unit if the primary unit fails.
If you have many FortiGate units in the cluster, you can assign a different priority to
each of them to create a failover path.
To set the priority of each FortiGate unit in a cluster
1
2
Connect to the cluster and log into the CLI.
Select a permanent primary unit by following all the steps in the procedure “Selecting
3
4
From the primary unit CLI, enter the following command to log into a subordinate
cluster member:
execute ha manage <cluster-member_int>
Set the priority of the cluster member. Enter:
set system ha priority <priority_int>
Where <priority_int>is the priority to set for the permanent primary unit. The
permanent primary unit must have the lowest priority. The unit with the second lowest
priority always becomes the new primary unit if the permanent primary unit fails. The
default priority is 128.
For example, to set the priority of a cluster unit to 20, enter the command:
set system ha priority 20
5
6
Enter the command exitto return to the primary unit CLI.
Configuring weighted-round-robin weights
By default, in active-active HA mode the weighted round-robin schedule assigns the
same weight to each FortiGate unit in the cluster. If you configure a cluster to use the
weighted round-robin schedule, you can use the set system ha weight
command to configure a weight value for each cluster unit. The weight value sets the
maximum number of connections that are sent to a cluster unit before a connection
can be sent to the next cluster unit. You can set weight values to control the number of
connections processed by each cluster unit. For example, you might want to reduce
the number of connections processed by the primary cluster unit by increasing the
weight assigned to the subordinate cluster units.
88
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Active-Active cluster packet flow
Weight values are entered in order according to the priority of the units in the cluster.
For example, if you have a cluster of three FortiGate units, you can enter the following
command to configure the weight values for each unit:
set system ha weight 1 3 3
This command has the following results:
•
•
•
The first connection is processed by the primary unit
The next three connections are processed by the first subordinate unit
The next three connections are processed by the second subordinate unit
The subordinate units process more connections than the primary unit, and both
subordinate units, on average, process the same number of connections.
Active-Active cluster packet flow
This section describes packet flow through an active-active HA cluster. The cluster
consists of two FortiGate units (primary and subordinate). Cluster interfaces are
connected using switches.
•
•
•
Figure 18: Active-active HA packet flow
Switch 1
Switch 2
HA cluster
Primary Unit
Client
Server
Subordinate Unit
FortiGate-800 Installation and Configuration Guide
89
Download from Www.Somanuals.com. All Manuals Search And Download.
Active-Active cluster packet flow
High availability
NAT/Route mode packet flow
In NAT/Route mode, five MAC addresses are involved in active-active communication
between a client and a server if the cluster routes the packets to the subordinate unit
in the cluster:
•
Virtual cluster MAC address (MAC_V)
Client MAC address (MAC_C),
•
•
•
•
Server MAC address (MAC_S),
Subordinate unit internal MAC address (MAC_S_I),
Subordinate unit external MAC address (MAC_S_E).
In NAT/Route mode, the HA cluster works as a gateway when it responds to ARP
requests. Therefore, the client and the server only know the gateway MAC address
(MAC_V), which is a virtual MAC address created by the HA cluster. The virtual MAC
address is 00-09-0f-06-ff-00.
Switch 1 and 2 know where the virtual MAC address and the real MAC address are.
Packets are routed through the subordinate unit as follows.
A request packet from a client on the internal network to a server on the external
network:
1
2
3
Source is MAC_C and destination is MAC_V (from client to primary)
Source is MAC_V and destination is MAC_S_I (from primary to subordinate internal)
Source is MAC_S_E and destination is MAC_S (from subordinate external to server)
A response packet from a server on the external network to a client on the internal
network:
1
2
3
Source is MAC_S and destination is MAC_V (from server to primary)
Source is MAC_V and destination is MAC_S_E (from primary to subordinate external)
Source is MAC_S_I and destination is MAC_C (from subordinate internal to client)
Configuring switches to work with a NAT/Route mode cluster
Some switch vendors use a Global MAC address table for the entire switch instead of
multiple MAC address tables, one for each interface and VLAN. The Global MAC
address table feature causes interoperability problems with FortiGate HA. For a switch
to work with FortiGate HA, the switch should support and be configured to use
individual MAC address tables for each switch interface.
90
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
High availability
Active-Active cluster packet flow
The following are examples of switches that are compatible with the FGCP because
they use a Global MAC address table:
•
•
•
•
•
•
•
•
HP 4100 GL series,
HP2628,
HP5300,
Cisco Catalyst,
Cisco 2850,
Cisco 3550,
Nortel PP8600,
Nortel XLR.
Transparent mode packet flow
In transparent mode, six MAC addresses are involved in active-active communication
between a client and a server if the cluster routes the packets to the subordinate unit
in the cluster:
•
•
•
•
•
•
Client MAC address (MAC_C),
Server MAC address (MAC_S),
Primary unit internal MAC address (MAC_P_I),
Primary unit external MAC address (MAC_P_E),
Subordinate unit internal MAC address (MAC_S_I),
Subordinate unit external MAC address (MAC_S_E).
A request packet from a client on the internal network to a server on the external
network:
1
2
Source is MAC_C and destination is MAC_S (from client to primary)
Source is MAC_P_I and destination is MAC_S_I (from primary internal to subordinate
internal)
3
Source is MAC_S_E and destination is MAC_S (from subordinate external to server)
A response packet from a server on the external network to a client on the internal
network:
1
2
Source is MAC_S and destination is MAC_C (from server to primary)
Source is MAC_P_E and destination is MAC_S_E (from primary external to
subordinate external)
3
Source is MAC_S_I and destination is MAC_C (from subordinate internal to client)
FortiGate-800 Installation and Configuration Guide
91
Download from Www.Somanuals.com. All Manuals Search And Download.
Active-Active cluster packet flow
High availability
92
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
System status
You can connect to the web-based manager and view the current system status of the
FortiGate unit. The status information that is displayed includes the current firmware
version, the current virus and attack definitions, and the FortiGate unit serial number.
If you log into the web-based manager using the admin administrator account, you
can make any of the following changes to the FortiGate system settings:
•
•
•
•
•
•
•
•
•
•
•
If you log into the web-based manager with another administrator account, you can
view the system settings including:
•
•
•
All administrative users can also go to the Monitor page and view FortiGate system
status. System status displays FortiGate system health monitoring information,
including CPU and memory status, session and network status.
•
All administrative users can also go to the Session page and view the active
communication sessions to and through the FortiGate unit.
•
FortiGate-800 Installation and Configuration Guide
93
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate host name
System status
Changing the FortiGate host name
The FortiGate host name appears on the Status page and in the FortiGate CLI
prompt. The host name is also used as the SNMP system name. For information
The default host name is FortiGate-800.
To change the FortiGate host name
1
2
3
4
Go to System > Status.
Select Edit Host Name
Type a new host name.
Select OK.
.
The new host name is displayed on the Status page, and in the CLI prompt, and is
added to the SNMP System Name.
Changing the FortiGate firmware
After you download a FortiGate firmware image from Fortinet, you can use the
Table 18: Firmware upgrade procedures
Procedure
Description
Commonly-used web-based manager and CLI procedures to
upgrade to a new FortiOS firmware version or to a more recent
build of the same firmware version.
Use the web-based manager or CLI procedure to revert to a
previous firmware version. This procedure reverts the FortiGate
unit to its factory default configuration.
Use this procedure to install a new firmware version or revert to a
previous firmware version. You must run this procedure by
connecting to the CLI using the FortiGate console port and a
null-modem cable. This procedure reverts the FortiGate unit to its
factory default configuration.
Use this procedure to test a new firmware image before installing it.
You must run this procedure by connecting to the CLI using the
FortiGate console port and a null-modem cable. This procedure
temporarily installs a new firmware image using your current
configuration. You can test the firmware image before installing it
permanently. If the firmware image works correctly you can use
one of the other procedures listed in this table to install it
permanently.
backup firmware image. Once the backup firmware image is
installed you can switch to this backup image when required.
94
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
Upgrading to a new firmware version
Use the following procedures to upgrade the FortiGate unit to a newer firmware
version.
Upgrading the firmware using the web-based manager
Note: Installing firmware replaces the current antivirus and attack definitions with the definitions
included with the firmware release that you are installing. After you install new firmware, use the
sure that antivirus and attack definitions are up to date.
To upgrade the firmware using the web-based manager
Copy the firmware image file to your management computer.
Log into the web-based manager as the admin administrative user.
Go to System > Status.
1
2
3
4
5
Select Firmware Upgrade
.
Type the path and filename of the firmware image file, or select Browse and locate the
file.
6
Select OK.
The FortiGate unit uploads the firmware image file, upgrades to the new firmware
version, restarts, and displays the FortiGate login. This process takes a few minutes.
7
8
Log into the web-based manager.
Go to System > Status and check the Firmware Version to confirm that the firmware
upgrade is successfully installed.
9
Update antivirus and attack definitions. For information about antivirus and attack
definitions, see “Manually initiating antivirus and attack definitions updates” on
Upgrading the firmware using the CLI
To use the following procedure you must have a TFTP server that the FortiGate unit
can connect to.
Note: Installing firmware replaces your current antivirus and attack definitions with the
definitions included with the firmware release that you are installing. After you install new
firmware, use the procedure “Manually initiating antivirus and attack definitions updates” on
CLI command execute updatecenter updatenowto update the antivirus and attack
definitions.
To upgrade the firmware using the CLI
1
2
3
Make sure that the TFTP server is running.
Copy the new firmware image file to the root directory of the TFTP server.
Log into the CLI as the admin administrative user.
FortiGate-800 Installation and Configuration Guide
95
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate firmware
System status
4
Make sure the FortiGate unit can connect to the TFTP server.
You can use the following command to ping the computer running the TFTP server.
For example, if the IP address of the TFTP server is 192.168.1.168:
execute ping 192.168.1.168
5
Enter the following command to copy the firmware image from the TFTP server to the
FortiGate unit:
execute restore image <name_str> <tftp_ip>
Where <name_str>is the name of the firmware image file on the TFTP server and
<tftp_ip>is the IP address of the TFTP server. For example, if the firmware image
file name is FGT_300-v250-build045-FORTINET.out and the IP address of the
TFTP server is 192.168.1.168, enter:
execute restore image FGT_300-v250-build045-FORTINET.out
192.168.1.168
The FortiGate unit uploads the firmware image file, upgrades to the new firmware
version, and restarts. This process takes a few minutes.
6
7
Reconnect to the CLI.
To confirm that the new firmware image is successfully installed, enter:
get system status
8
9
Use the procedure “Manually initiating antivirus and attack definitions updates” on
page 119 to update antivirus and attack definitions, or from the CLI, enter:
execute updatecenter updatenow
To confirm that the antivirus and attack definitions are succesfully updated, enter the
following command to display the antivirus engine, virus and attack definitions version,
contract expiry, and last update attempt information.
get system objver
Reverting to a previous firmware version
Use the following procedures to revert your FortiGate unit to a previous firmware
version.
Reverting to a previous firmware version using the web-based
manager
The following procedures revert the FortiGate unit to its factory default configuration
and delete NIDS user-defined signatures, web content lists, email filtering lists, and
changes to replacement messages.
Before beginning this procedure you can:
•
•
•
Back up the FortiGate unit configuration. For information, see “Backing up system
Back up the NIDS user-defined signatures. For information, see the FortiGate
NIDS Guide
Back up web content and email filtering lists. For information, see the FortiGate
Content Protection Guide.
96
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
If you are reverting to a previous FortiOS version (for example, reverting from FortiOS
v2.50 to FortiOS v2.36) you might not be able to restore the previous configuration
from the backup configuration file.
Note: Installing firmware replaces the current antivirus and attack definitions with the definitions
included with the firmware release that you are installing. After you install new firmware, use the
sure that antivirus and attack definitions are up to date.
To revert to a previous firmware version using the web-based manager
Copy the firmware image file to your management computer.
Log into the FortiGate web-based manager as the admin administrative user.
Go to System > Status.
1
2
3
4
5
Select Firmware Upgrade
.
Type the path and filename of the previous firmware image file, or select Browse and
locate the file.
6
Select OK.
The FortiGate unit uploads the firmware image file, reverts to the old firmware version,
resets the configuration, restarts, and displays the FortiGate login. This process takes
a few minutes.
7
Log into the web-based manager.
For information about logging into the web-based manager when the FortiGate unit is
8
9
Go to System > Status and check the Firmware Version to confirm that the firmware
is successfully installed.
Restore your configuration.
For information about restoring your configuration, see “Restoring system settings” on
10
Update antivirus and attack definitions. For information about antivirus and attack
definitions, see “Manually initiating antivirus and attack definitions updates” on
Reverting to a previous firmware version using the CLI
This procedure reverts your FortiGate unit to its factory default configuration and
deletes NIDS user-defined signatures, web content lists, email filtering lists, and
changes to replacement messages.
Before beginning this procedure you can:
•
•
•
Back up the FortiGate unit configuration using the command execute backup
config.
Back up the NIDS user defined signatures using the command execute backup
nidsuserdefsig
Back up web content and email filtering lists. For information, see the FortiGate
Content Protection Guide.
FortiGate-800 Installation and Configuration Guide
97
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate firmware
System status
If you are reverting to a previous FortiOS version (for example, reverting from FortiOS
v2.50 to FortiOS v2.36) you might not be able to restore your previous configuration
from the backup configuration file.
Note: Installing firmware replaces the current antivirus and attack definitions with the definitions
included with the firmware release that you are installing. After you install new firmware, use the
sure that antivirus and attack definitions are up to date. You can also use the CLI command
execute updatecenter updatenowto update the antivirus and attack definitions.
To use the following procedure you must have a TFTP server that the FortiGate unit
can connect to.
To revert to a previous firmware version using the CLI
Make sure that the TFTP server is running.
1
2
3
4
Copy the new firmware image file to the root directory of the TFTP server.
Log into the FortiGate CLI as the admin administrative user.
Make sure the FortiGate unit can connect to the TFTP server.
You can use the following command to ping the computer running the TFTP server.
For example, if the TFTP server's IP address is 192.168.1.168:
execute ping 192.168.1.168
5
Enter the following command to copy the firmware image from the TFTP server to the
FortiGate unit:
execute restore image <name_str> <tftp_ip>
Where <name_str>is the name of the firmware image file on the TFTP server and
<tftp_ip>is the IP address of the TFTP server. For example, if the firmware image
file name is FGT_300-v250-build045-FORTINET.outand the IP address of the
TFTP server is 192.168.1.168, enter:
execute restore image FGT_300-v250-build045-FORTINET.out
192.168.1.168
The FortiGate unit uploads the firmware image file. After the file uploads, a message
similar to the following is displayed:
Get image from tftp server OK.
This operation will downgrade the current firmware version!
Do you want to continue? (y/n)
6
7
Type Y.
The FortiGate unit reverts to the old firmware version, resets the configuration to
factory defaults, and restarts. This process takes a few minutes.
8
Reconnect to the CLI.
For information about logging into the CLI when the FortiGate unit is set to factory
9
To confirm that the new firmware image has been loaded, enter:
get system status
10
Restore your previous configuration. Use the following command:
execute restore config
98
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
11
12
Update antivirus and attack definitions. For information, see “Manually initiating
antivirus and attack definitions updates” on page 119, or from the CLI, enter:
execute updatecenter updatenow
To confirm that the antivirus and attack definitions have been updated, enter the
following command to display the antivirus engine, virus and attack definitions version,
contract expiry, and last update attempt information.
get system objver
Installing firmware images from a system reboot using the CLI
This procedure installs a specified firmware image and resets the FortiGate unit to
default settings. You can use this procedure to upgrade to a new firmware version,
revert to an older firmware version, or re-install the current firmware version.
Note: This procedure varies for different FortiGate BIOS versions. These variations are
explained in the procedure steps that are affected. The version of the BIOS running on the
FortiGate unit is displayed when you restart the FortiGate unit using the CLI through a console
connection.
To perform this procedure you:
•
access the CLI by connecting to the FortiGate console port using a null-modem
cable,
•
install a TFTP server that you can connect to from the FortiGate internal interface.
The TFTP server should be on the same subnet as the internal interface.
Before beginning this procedure you can:
•
•
•
Back up the FortiGate unit configuration. For information, see “Backing up system
Back up the NIDS user defined signatures. For information, see the FortiGate
NIDS Guide.
Back up web content and email filtering lists. For information, see the FortiGate
Content Protection Guide.
If you are reverting to a previous FortiOS version (for example, reverting from FortiOS
v2.50 to FortiOS v2.36) you might not be able to restore your previous configuration
from the backup configuration file.
Note: Installing firmware replaces the current antivirus and attack definitions with the definitions
included with the firmware release that you are installing. After you install new firmware, use the
sure that antivirus and attack definitions are up to date.
To install firmware from a system reboot
1
2
3
4
Connect to the CLI using the null-modem cable and FortiGate console port.
Make sure that the TFTP server is running.
Copy the new firmware image file to the root directory of the TFTP server.
Make sure that the internal interface is connected to the same network as the TFTP
server.
FortiGate-800 Installation and Configuration Guide
99
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate firmware
System status
5
To confirm that the FortiGate unit can connect to the TFTP server, use the following
command to ping the computer running the TFTP server. For example, if the IP
address of the TFTP server is 192.168.1.168, enter:
execute ping 192.168.1.168
6
Enter the following command to restart the FortiGate unit:
execute reboot
As the FortiGate units starts, a series of system startup messages is displayed.
When one of the following messages appears:
FortiGate unit running v2.x BIOS
•
Press Any Key To Download Boot Image.
...
•
FortiGate unit running v3.x BIOS
Press any key to enter configuration menu.....
......
7
Immediately press any key to interrupt the system startup.
Note: You have only 3 seconds to press any key. If you do not press a key soon enough, the
FortiGate unit reboots and you must log in and repeat the execute rebootcommand.
If you successfully interrupt the startup process, one of the following messages
appears:
•
FortiGate unit running v2.x BIOS
Enter TFTP Server Address [192.168.1.168]:
•
FortiGate unit running v3.x BIOS
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[B]: Boot with backup firmware and set as default.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.
Enter G,F,B,Q,or H:
8
9
Type G to get the new firmware image from the TFTP server.
Type the address of the TFTP server and press Enter.
The following message appears:
Enter Local Address [192.168.1.188]:
10
Type the address of the internal interface of the FortiGate unit and press Enter.
Note: The local IP address is used only to download the firmware image. After the firmware is
installed, the address of this interface is changed back to the default IP address for this
interface.
The following message appears:
Enter File Name [image.out]:
100
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
11
Enter the firmware image filename and press Enter.
The TFTP server uploads the firmware image file to the FortiGate unit and messages
similar to the following are displayed:
•
FortiGate unit running v2.x BIOS
Do You Want To Save The Image? [Y/n]
Type Y.
•
FortiGate unit running v3.x BIOS
Save as Default firmware/Run image without saving:[D/R]
Save as Default firmware/Backup firmware/Run image without
saving:[D/B/R]
Type D.
The FortiGate unit installs the new firmware image and restarts. The installation might
take a few minutes to complete.
Restoring the previous configuration
Change the internal interface addresses if required. You can do this from the CLI
using the command:
set system interface
After changing the interface addresses, you can access the FortiGate unit from the
web-based manager and restore the configuration.
•
•
•
•
If you are reverting to a previous firmware version (for example, reverting from
FortiOS v2.50 to FortiOS v2.36) you might not be able to restore your previous
configuration from the backup up configuration file.
Update the virus and attack definitions to the most recent version, see “Manually
Testing a new firmware image before installing it
You can test a new firmware image by installing the firmware image from a system
reboot and saving it to system memory. After completing this procedure the FortiGate
unit operates using the new firmware image with the current configuration. This new
firmware image is not permanently installed. The next time the FortiGate unit restarts,
it operates with the originally installed firmware image using the current configuration.
If the new firmware image operates successfully, you can install it permanently using
FortiGate-800 Installation and Configuration Guide
101
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate firmware
System status
To run this procedure you:
•
access the CLI by connecting to the FortiGate console port using a null-modem
cable,
•
install a TFTP server that you can connect to from the FortiGate internal interface.
The TFTP server should be on the same subnet as the internal interface.
To test a new firmware image
1
2
3
4
Connect to the CLI using a null-modem cable and FortiGate console port.
Make sure the TFTP server is running.
Copy the new firmware image file to the root directory of the TFTP server.
Make sure that the internal interface is connected to the same network as the TFTP
server.
You can use the following command to ping the computer running the TFTP server.
For example, if the TFTP server's IP address is 192.168.1.168:
execute ping 192.168.1.168
5
6
Enter the following command to restart the FortiGate unit:
execute reboot
As the FortiGate unit reboots, press any key to interrupt the system startup.
As the FortiGate units starts, a series of system startup messages are displayed.
When one of the following messages appears:
•
FortiGate unit running v2.x BIOS
Press Any Key To Download Boot Image.
...
•
FortiGate unit running v3.x BIOS
Press any key to enter configuration menu.....
......
7
Immediately press any key to interrupt the system startup.
Note: You have only 3 seconds to press any key. If you do not press a key soon enough, the
FortiGate unit reboots and you must log in and repeat the execute rebootcommand.
If you successfully interrupt the startup process, one of the following messages
appears:
•
FortiGate unit running v2.x BIOS
Enter TFTP Server Address [192.168.1.168]:
•
FortiGate unit running v3.x BIOS
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.
Enter G,F,Q,or H:
8
Type G to get the new firmware image from the TFTP server.
102
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
9
Type the address of the TFTP server and press Enter.
The following message appears:
Enter Local Address [192.168.1.188]:
10
Type the address of the internal interface of the FortiGate unit and press Enter.
Note: The local IP address is used only to download the firmware image. After the firmware is
installed, the address of this interface is changed back to the default IP address for this
interface.
The following message appears:
Enter File Name [image.out]:
11
Enter the firmware image file name and press Enter.
The TFTP server uploads the firmware image file to the FortiGate unit and messages
similar to the following appear.
•
FortiGate unit running v2.x BIOS
Do You Want To Save The Image? [Y/n]
Type N.
•
FortiGate unit running v3.x BIOS
Save as Default firmware/Run image without saving:[D/R]
Type R.
The FortiGate image is installed to system memory and the FortiGate unit starts
running the new firmware image but with its current configuration.
12
13
You can log into the CLI or the web-based manager using any administrative account.
To confirm that the new firmware image has been loaded, from the CLI enter:
get system status
You can test the new firmware image as required.
Installing and using a backup firmware image
If the FortiGate unit is running BIOS version v3.x, you can install a backup firmware
image. Once the backup firmware image is installed you can switch to this backup
image when required.
This section describes:
•
•
•
Installing a backup firmware image
To run this procedure you:
•
access the CLI by connecting to the FortiGate console port using a null-modem
cable,
•
install a TFTP server that you can connect to from the FortiGate as described in
FortiGate-800 Installation and Configuration Guide
103
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing the FortiGate firmware
System status
To install a backup firmware image
1
2
3
4
Connect to the CLI using the null-modem cable and FortiGate console port.
Make sure that the TFTP server is running.
Copy the new firmware image file to the root directory of your TFTP server.
To confirm that the FortiGate unit can connect to the TFTP server, use the following
command to ping the computer running the TFTP server. For example, if the IP
address of the TFTP server is 192.168.1.168:
execute ping 192.168.1.168
5
6
Enter the following command to restart the FortiGate unit:
execute reboot
As the FortiGate unit starts, a series of system startup messages are displayed.
When one of the following messages appears:
Press any key to enter configuration menu.....
......
Immediately press any key to interrupt the system startup.
Note: You have only 3 seconds to press any key. If you do not press a key soon enough, the
FortiGate unit reboots and you must log in and repeat the execute rebootcommand.
If you successfully interrupt the startup process, one of the following messages
appears:
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[B]: Boot with backup firmware and set as default.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.
Enter G,F,B,Q,or H:
7
8
Type G to get the new firmware image from the TFTP server.
Type the address of the TFTP server and press Enter.
The following message appears:
Enter Local Address [192.168.1.188]:
9
Type the address of the interface of the FortiGate unit that can connect to the TFTP
server and press Enter.
The following message appears:
Enter File Name [image.out]:
10
Enter the firmware image file name and press Enter.
The TFTP server uploads the firmware image file to the FortiGate unit and messages
similar to the following appear.
Save as Default firmware/Backup firmware/Run image without
saving:[D/B/R]
11
Type B.
The FortiGate unit saves the backup firmware image and restarts. When the FortiGate
unit restarts it is running the previously installed firmware version.
104
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Changing the FortiGate firmware
Switching to the backup firmware image
Use this procedure to switch the FortiGate unit to operating with a backup firmware
image that you previously installed. When you switch the FortiGate unit to the backup
firmware image, the FortiGate unit operates using the configuration that was saved
with that firmware image.
If you install a new backup image from a reboot, the configuration saved with this
firmware image is the factory default configuration. If you use the procedure
“Switching back to the default firmware image” on page 106 to switch to a backup
firmware image that was previously running as the default firmware image, the
configuration saved with this firmware image is restored.
To switch to the backup firmware image
1
2
Connect to the CLI using the null-modem cable and FortiGate console port.
Enter the following command to restart the FortiGate unit:
execute reboot
As the FortiGate units starts, a series of system startup messages are displayed.
When the following message appears:
Press any key to enter configuration menu.....
......
3
Immediately press any key to interrupt the system startup.
Note: You have only 3 seconds to press any key. If you do not press a key soon enough, the
FortiGate unit reboots and you must log in and repeat the execute rebootcommand.
If you successfully interrupt the startup process, the following message appears:
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[B]: Boot with backup firmware and set as default.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.
Enter G,F,B,Q,or H:
4
Type B to load the backup firmware image.
The FortiGate unit loads the backup firmware image and restarts. When the FortiGate
unit restarts, it is running the backup firmware version and the configuration is set to
factory default.
FortiGate-800 Installation and Configuration Guide
105
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual virus definition updates
System status
Switching back to the default firmware image
Use this procedure to switch the FortiGate unit to operating with the backup firmware
image that had been running as the default firmware image. When you switch to this
backup firmware image, the configuration saved with this firmware image is restored.
To switch back to the default firmware image
1
2
Connect to the CLI using the null-modem cable and FortiGate console port.
Enter the following command to restart the FortiGate unit:
execute reboot
As the FortiGate units starts, a series of system startup messages are displayed.
When the following message appears:
Press any key to enter configuration menu.....
......
3
Immediately press any key to interrupt the system startup.
Note: You have only 3 seconds to press any key. If you do not press a key soon enough, the
FortiGate unit reboots and you must log in and repeat the execute rebootcommand.
If you successfully interrupt the startup process, the following message appears:
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[B]: Boot with backup firmware and set as default.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.
Enter G,F,B,Q,or H:
4
Type B to load the backup firmware image.
The FortiGate unit loads the backup firmware image and restarts. When the FortiGate
unit restarts it is running the backup firmware version with a restored configuration.
Manual virus definition updates
The Status page of the FortiGate web-based manager displays the current installed
versions of the FortiGate antivirus definitions.
Note: For information about configuring the FortiGate unit for automatic antivirus definitions
manually start an antivirus definitions update by going to System > Update and selecting
Update Now.
To update the antivirus definitions manually
1
Download the latest antivirus definitions update file from Fortinet and copy it to the
computer that you use to connect to the web-based manager.
2
3
Start the web-based manager and go to System > Status.
In the Antivirus Definitions Version section, select Definitions Update
.
106
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Manual attack definition updates
4
5
Type the path and filename for the antivirus definitions update file, or select Browse
and locate the antivirus definitions update file.
Select OK to copy the antivirus definitions update file to the FortiGate unit.
The FortiGate unit updates the antivirus definitions. This takes about 1 minute.
6
Go to System > Status to confirm that the Antivirus Definitions Version information
has updated.
Manual attack definition updates
The Status page of the FortiGate web-based manager displays the current installed
versions of the FortiGate Attack Definitions used by the Network Intrusion Detection
System (NIDS).
Note: For information about configuring the FortiGate unit for automatic attack definitions
manually start an attack definitions update by going to System > Update and selecting Update
Now.
To update the attack definitions manually
1
Download the latest attack definitions update file from Fortinet and copy it to the
computer that you use to connect to the web-based manager.
2
3
4
Start the web-based manager and go to System > Status.
In the Attack Definitions Version section, select Definitions Update
.
Type the path and filename for the attack definitions update file, or select Browse and
locate the attack definitions update file.
5
6
Select OK to copy the attack definitions update file to the FortiGate unit.
The FortiGate unit updates the attack definitions. This takes about 1 minute.
Go to System > Status to confirm that the Attack Definitions Version information has
updated.
Displaying the FortiGate serial number
1
Go to System > Status.
The serial number is displayed on the System Status page of the web-based
manager. The serial number is specific to the FortiGate unit and does not change with
firmware upgrades.
FortiGate-800 Installation and Configuration Guide
107
Download from Www.Somanuals.com. All Manuals Search And Download.
Displaying the FortiGate up time
System status
Displaying the FortiGate up time
1
Go to System > Status.
The FortiGate up time displays the time in days, hours, and minutes since the
FortiGate unit was last started.
Displaying log hard disk status
1
Go to System > Status.
Log Hard Disk displays Available if the FortiGate unit contains a hard disk and Not
Available if no hard disk is installed. The FortiGate unit uses the hard disk to store log
messages and quarantine files infected with a virus or blocked by antivirus file
blocking.
Backing up system settings
You can back up system settings by downloading them to a text file on the
management computer.
To back up system settings
Go to System > Status.
1
2
3
4
Select System Settings Backup.
Select Backup System Settings.
Type a name and location for the file.
The system settings file is backed up to the management computer.
5
Select Return to go back to the Status page.
Restoring system settings
You can restore system settings by uploading a previously downloaded system
settings text file.
To restore system settings
Go to System > Status.
1
2
3
Select System Settings Restore.
Enter the path and filename of the system settings file, or select Browse and locate
the file.
4
5
Select OK to restore the system settings file to the FortiGate unit.
The FortiGate unit restarts, loading the new system settings.
Reconnect to the web-based manager and review your configuration to confirm that
the uploaded system settings have taken effect.
108
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Restoring system settings to factory defaults
Restoring system settings to factory defaults
Use the following procedure to restore system settings to the values set at the factory.
This procedure does not change the firmware version or the antivirus or attack
definitions.
Caution: This procedure deletes all changes that you have made to the FortiGate configuration
!
and reverts the system to its original configuration, including resetting interface addresses.
To restore system settings to factory defaults
Go to System > Status.
1
2
3
Select Restore Factory Defaults.
Select OK to confirm.
The FortiGate unit restarts with the configuration that it had when it was first powered
on.
4
Reconnect to the web-based manager and review the system configuration to confirm
that it has been reset to the default settings.
For information about restoring system settings, see “Restoring system settings” on
Changing to Transparent mode
Use the following procedure to change the FortiGate unit from NAT/Route mode to
Transparent mode. After you change the FortiGate unit to Transparent mode, most of
the configuration resets to Transparent mode factory defaults.
The following items are not set to Transparent mode factory defaults:
•
The admin administrator account password (see “Adding and editing administrator
•
•
To change to Transparent mode
Go to System > Status.
1
2
3
4
Select Change to Transparent Mode.
Select Transparent in the operation mode list.
Select OK.
The FortiGate unit changes operation mode.
5
To reconnect to the web-based manager, connect to the interface configured for
Transparent mode management access and browse to https:// followed by the
Transparent mode management IP address.
By default in Transparent mode, you can connect to the internal or DMZ interface. The
default Transparent mode management IP address is 10.10.10.1.
FortiGate-800 Installation and Configuration Guide
109
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing to NAT/Route mode
System status
Changing to NAT/Route mode
Use the following procedure to change the FortiGate unit from Transparent mode to
NAT/Route mode. After you change the FortiGate unit to NAT/Route mode, most of
the configuration resets to NAT/Route mode factory defaults.
The following items are not set to NAT/Route mode factory defaults:
•
The admin administrator account password (see “Adding and editing administrator
•
•
To change to NAT/Route mode
Go to System > Status.
1
2
3
4
Select Change to NAT Mode.
Select NAT/Route in the operation mode list.
Select OK.
The FortiGate unit changes operation mode.
5
To reconnect to the web-based manager you must connect to the interface configured
by default for management access.
By default in NAT/Route mode, you can connect to the internal or DMZ interface. The
default Transparent mode management IP address is 192.168.1.99.
Restarting the FortiGate unit
1
Go to System > Status.
2
Select Restart.
The FortiGate unit restarts.
Shutting down the FortiGate unit
You can restart the FortiGate unit after shutdown only by turning the power off and
then on.
1
2
Go to System > Status.
Select Shutdown.
The FortiGate unit shuts down and all traffic flow stops.
110
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
System status
System status
You can use the system status monitor to display FortiGate system health information.
The system health information includes memory usage, the number of active
communication sessions, and the amount of network bandwidth currently in use. The
web-based manager displays current statistics as well as statistics for the previous
minute.
If the FortiGate unit contains a hard disk, the system status monitor displays the
capacity of the hard disk and the amount of used and free space on the hard disk.
You can also view current virus and intrusion status. The web-based manager
displays the current number of viruses and attacks as well as a graph of virus and
attack levels over the previous 20 hours.
In each case you can set an automatic refresh interval that updates the display every
5 to 30 seconds. You can also refresh the display manually.
•
•
•
Viewing CPU and memory status
Current CPU and memory status indicates how close the FortiGate unit is to running
at full capacity. The web-based manager displays CPU and memory usage for core
processes only. CPU and memory use for management processes (for example, for
HTTPS connections to the web-based manager) is excluded.
If CPU and memory use is low, the FortiGate unit is able to process much more
network traffic than is currently running. If CPU and memory use is high, the FortiGate
unit is performing near its full capacity. Putting additional demands on the system
might cause traffic processing delays.
CPU and memory intensive processes, such as encrypting and decrypting IPSec VPN
traffic, virus scanning, and processing high levels of network traffic containing small
packets, increase CPU and memory usage.
To view CPU and memory status
1
Go to System > Status > Monitor.
CPU & Memory status is displayed. The display includes bar graphs of current CPU
and memory usage as well as line graphs of CPU and memory usage for the previous
minute.
If your FortiGate unit contains a hard disk, CPU, memory, and hard disk status are
displayed.
2
3
Set the automatic refresh interval and select Go to control how often the web-based
manager updates the display.
More frequent updates use system resources and increase network traffic. However,
this occurs only when you are viewing the display using the web-based manager.
Select Refresh to manually update the information displayed.
FortiGate-800 Installation and Configuration Guide
111
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
System status
Figure 19: CPU and memory status monitor
Viewing sessions and network status
Use the session and network status display to track how many network sessions the
FortiGate unit is processing and to see what effect the number of sessions has on the
available network bandwidth. Also, by comparing CPU and memory usage with
session and network status you can see how much demand network traffic is putting
on system resources.
The Sessions section displays the total number of sessions being processed by the
FortiGate unit on all interfaces. It also displays the sessions as a percentage of the
maximum number of sessions that the FortiGate unit is designed to support.
The Network utilization section displays the total network bandwidth being used
through all FortiGate interfaces. It also displays network utilization as a percentage of
the maximum network bandwidth that can be processed by the FortiGate unit.
To view sessions and network status
Go to System > Status > Monitor.
Select Sessions & Network.
1
2
Sessions and network status is displayed. The display includes bar graphs of the
current number of sessions and current network utilization as well as line graphs of
session and network utilization usage for the last minute. The line graph scales are
shown in the upper left corner of the graph.
3
Set the automatic refresh interval and select Go to control how often the web-based
manager updates the display.
More frequent updates use system resources and increase network traffic. However,
this only occurs when you are viewing the display using the web-based manager.
112
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
System status
4
Select Refresh to manually update the information displayed.
Figure 20: Sessions and network status monitor
Viewing virus and intrusions status
Use the virus and intrusions status display to track when viruses are found by the
FortiGate antivirus system and to track when the NIDS detects a network-based
attack.
To view virus and intrusions status
Go to System > Status > Monitor.
Select Virus & Intrusions.
1
2
Virus and intrusions status is displayed. The display includes bar graphs of the
number viruses and intrusions detected per hour as well as line graphs of the number
of viruses and intrusions detected for the last 20 hours.
3
4
Set the automatic refresh interval and select Go to control how often the web-based
manager updates the display.
More frequent updates use system resources and increase network traffic. However,
this only occurs when you are viewing the display using the web-based manager. The
line graph scales are shown on the upper right corner of the graph.
Select Refresh to manually update the information displayed.
FortiGate-800 Installation and Configuration Guide
113
Download from Www.Somanuals.com. All Manuals Search And Download.
Session list
System status
Figure 21: Sessions and network status monitor
Session list
The session list displays information about the communications sessions currently
being processed by the FortiGate unit. You can use the session list to view current
sessions. FortiGate administrators with read and write permission and the FortiGate
admin user can also stop active communication sessions.
To view the session list
1
Go to System > Status > Session.
The web-based manager displays the total number of active sessions in the FortiGate
unit session table and lists the top 16.
2
3
4
To navigate the list of sessions, select Page Up
Select Refresh to update the session list.
If you are logged in as an administrative user with read and write privileges or as the
admin user, you can select Clear to stop an active session.
or Page Down
.
114
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System status
Session list
Each line of the session list displays the following information.
Protocol
From IP
The service protocol of the connection, for example, udp, tcp, or icmp.
The source IP address of the connection.
From Port The source port of the connection.
To IP
The destination IP address of the connection.
The destination port of the connection.
To Port
Expire
Clear
The time, in seconds, before the connection expires.
Stop an active communication session.
Figure 22: Example session list
FortiGate-800 Installation and Configuration Guide
115
Download from Www.Somanuals.com. All Manuals Search And Download.
Session list
System status
116
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Virus and attack definitions updates
and registration
You can configure the FortiGate unit to connect to the FortiResponse Distribution
Network (FDN) to update the antivirus and attack definitions and the antivirus engine.
You have the following update options:
•
•
Request updates from the FDN,
Schedule updates to automatically request the latest versions hourly, daily, or
weekly,
•
Set Push updates so that the FDN contacts your FortiGate unit when a new update
is available.
To receive scheduled updates and push updates, you must register the FortiGate unit
on the Fortinet support web page.
This chapter describes:
•
•
•
•
•
•
Updating antivirus and attack definitions
You can configure the FortiGate unit to connect to the FortiResponse Distribution
Network (FDN) to automatically receive the latest antivirus and attack definitions and
antivirus engine updates. The FortiGate unit supports the following antivirus and
attack definition update features:
•
•
User-initiated updates from the FDN,
Hourly, daily, or weekly scheduled antivirus and attack definition and antivirus
engine updates from the FDN,
•
•
Push updates from the FDN,
Update status including version numbers, expiry dates, and update dates and
times,
•
Push updates through a NAT device.
FortiGate-800 Installation and Configuration Guide
117
Download from Www.Somanuals.com. All Manuals Search And Download.
Updating antivirus and attack definitions
Virus and attack definitions updates and registration
The Update page on the web-based manager displays the following antivirus and
attack definition update information.
Version
Current antivirus engine, virus definition, and attack definition version
numbers.
Expiry date
Expiry date of your license for antivirus engine, virus definition, and attack
definition updates.
Last update
attempt
Date and time on which the FortiGate unit last attempted to download
antivirus engine, virus definition, and attack definition updates.
Last update
status
Success or failure of the last update attempt. No updates means the last
update attempt was successful but no new updates were available. Update
succeeded or similar messages mean the last update attempt was
successful and new updates were installed. Other messages can indicate
that the FortiGate was not able to connect to the FDN and other error
conditions.
This section describes:
•
•
•
Connecting to the FortiResponse Distribution Network
Before the FortiGate unit can receive antivirus and attack updates, it must be able to
connect to the FortiResponse Distribution Network (FDN). The FortiGate unit uses
HTTPS on port 8890 to connect to the FDN. The FortiGate external interface must
have a path to the Internet using port 8890. For information about configuring
You can also configure the FortiGate unit to allow push updates. Push updates are
provided to the FortiGate unit from the FDN using HTTPS on UDP port 9443. To
receive push updates, the FDN must have a path to the FortiGate external interface
using UDP port 9443. For information about configuring push updates, see “Enabling
The FDN is a world-wide network of FortiResponse Distribution Servers (FDSs).
When the FortiGate unit connects to the FDN it connects to the nearest FDS. To do
this, all FortiGate units are programmed with a list of FDS addresses sorted by
nearest time zone according to the time zone configured for the FortiGate unit. To
make sure the FortiGate unit receives updates from the nearest FDS, check that you
have selected the correct time zone for your area.
To make sure the FortiGate unit can connect to the FDN
1
Go to System > Config > Time and make sure the time zone is set to the time zone
for the region in which your FortiGate unit is located.
2
3
Go to System > Update.
Select Refresh.
The FortiGate unit tests its connection to the FDN. The test results are displayed at
the top of the System Update page.
118
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Updating antivirus and attack definitions
Table 19: Connections to the FDN
Connections
Status
Comments
Available
The FortiGate unit can connect to the FDN. You can
configure the FortiGate unit for scheduled updates.
Not available The FortiGate unit cannot connect to the FDN. You
must configure your FortiGate unit and your network so
that the FortiGate unit can connect to the Internet and
to the FDN. For example, you may need to add routes
to the FortiGate routing table or configure your network
to allow the FortiGate unit to use HTTPS on port 8890
to connect to the Internet.
FortiResponse
Distribution
Network
You may also have to connect to an override
FortiResponse server to receive updates. See “Adding
Available
The FDN can connect to the FortiGate unit to send
push updates. You can configure the FortiGate unit to
receive push updates. See “Enabling push updates” on
Not available The FDN cannot connect to the FortiGate unit to send
push updates. Push updates may not be available if
you have not registered the FortiGate unit (see
“Registering the FortiGate unit” on page 130), if there is
the FDN (see “Enabling push updates through a NAT
Push Update
Manually initiating antivirus and attack definitions updates
You can use the following procedure to update the antivirus and attack definitions at
any time. The FortiGate unit must be able to connect to the FDN or to an override
FortiResponse server.
To update antivirus and attack definitions
1
2
Go to System > Update.
Select Update Now to update the antivirus and attack definitions.
If the connection to the FDN or override server is successful, the web-based manager
displays a message similar to the following:
Your update request has been sent. Your database will be updated
in a few minutes. Please check your update page for the status
of the update.
After a few minutes, if an update is available, the System Update page lists new
version information for antivirus definitions, the antivirus engine, or attack definitions.
The System Status page also displays new dates and version numbers for antivirus
and attack definitions. Messages are recorded to the event log indicating whether the
update was successful or not.
FortiGate-800 Installation and Configuration Guide
119
Download from Www.Somanuals.com. All Manuals Search And Download.
Scheduling updates
Virus and attack definitions updates and registration
Configuring update logging
Use the following procedure to configure FortiGate logging to record log messages
when the FortiGate unit updates antivirus and attack definitions. The update log
messages are recorded on the FortiGate Event log.
To configure update logging
1
2
Go to Log&Report > Log Setting.
Select Config Policy for the type of logs that the FortiGate unit is configured to record.
3
4
Select Update to record log messages when the FortiGate unit updates antivirus and
attack definitions.
Select any of the following update log options.
Failed Update Records a log message whenever an update attempt fails.
Successful
Update
Records a log message whenever an update attempt is successful.
FDN error
Records a log message whenever it cannot connect to the FDN or
whenever it receives an error message from the FDN.
5
Select OK.
Scheduling updates
The FortiGate unit can check for and download updated definitions hourly, daily, or
weekly, according to a schedule that you specify.
This section describes:
•
•
•
Enabling scheduled updates
To enable scheduled updates
1
2
3
Go to System > Update.
Select the Scheduled Update check box.
Select one of the following to check for and download updates.
Hourly
Once every 1 to 23 hours. Select the number of hours and minutes between
each update request.
Daily
Once a day. You can specify the time of day to check for updates.
Weekly
Once a week. You can specify the day of the week and the time of day to check
for updates.
120
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Scheduling updates
4
Select Apply.
The FortiGate unit starts the next scheduled update according to the new update
schedule.
Whenever the FortiGate unit runs a scheduled update, the event is recorded in the
FortiGate event log.
Figure 23: Configuring automatic antivirus and attack definitions updates
Adding an override server
If you cannot connect to the FDN, or if your organization provides antivirus and attack
updates using their own FortiResponse server, you can use the following procedure to
add the IP address of an override FortiResponse server.
To add an override server
1
2
3
4
Go to System > Update.
Select the Use override server address check box.
Type the IP address of a FortiResponse server.
Select Apply.
The FortiGate unit tests the connection to the override server.
If the FortiResponse Distribution Network setting changes to available, the FortiGate
unit has successfully connected to the override server.
If the FortiResponse Distribution Network stays set to not available, the FortiGate unit
cannot connect to the override server. Check the FortiGate configuration and network
configuration for settings that would prevent the FortiGate unit connecting to the
override FortiResponse server.
FortiGate-800 Installation and Configuration Guide
121
Download from Www.Somanuals.com. All Manuals Search And Download.
Enabling push updates
Virus and attack definitions updates and registration
Enabling scheduled updates through a proxy server
If your FortiGate unit must connect to the Internet through a proxy server, you can use
the set system autoupdate tunnelingcommand to allow the FortiGate unit to
connect (or tunnel) to the FDN using the proxy server. Using this command you can
specify the IP address and port of the proxy server. As well, if the proxy server
requires authentication, you can add the user name and password required for the
proxy server to the autoupdate configuration. The full syntax for enabling updates
through a proxy server is:
set system autoupdate tunneling enable [address
<proxy-address_ip> [port <proxy-port> [username <username_str>
[password <password_str>]]]]
For example, if the IP address of the proxy server is 64.23.6.89 and its port is 8080,
enter the following command:
set system autouopdate tunneling enable address 64.23.6.89
port 8080
For more information about the set system autoupdatecommand, see Volume 6,
FortiGate CLI Reference Guide.
The FortiGate unit connects to the proxy server using the HTTP CONNECT method,
as described in RFC 2616. The FortiGate unit sends an HTTP CONNECT request to
the proxy server (optionally with authentication information) specifying the IP address
and port required to connect to the FDN. The proxy server establishes the connection
to the FDN and passes information between the FortiGate unit and the FDN.
The CONNECT method is used mostly for tunneling SSL traffic. Some proxy servers
do not allow the CONNECT to connect to any port; they restrict the allowed ports to
the well known ports for HTTPS and perhaps some other similar services. Because
FortiGate autoupdates use HTTPS on port 8890 to connect to the FDN, your proxy
server might have to be configured to allow connections on this port.
There are no special tunneling requirements if you have configured an override server
address to connect to the FDN.
Enabling push updates
The FDN can push updates to FortiGate units to provide the fastest possible response
to critical situations. You must register the FortiGate unit before it can receive push
When you configure a FortiGate unit to allow push updates, the FortiGate unit sends a
SETUP message to the FDN. The next time a new antivirus engine, new antivirus
definitions, or new attack definitions are released, the FDN notifies all FortiGate units
that are configured for push updates that a new update is available. Within 60
seconds of receiving a push notification, the FortiGate unit requests an update from
the FDN.
Note: Push updates are not supported if the FortiGate unit must use a proxy server to connect
to the FDN. For more information, see “Enabling scheduled updates through a proxy server” on
122
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Enabling push updates
When the network configuration permits, configuring push updates is recommended in
addition to configuring scheduled updates. On average the FortiGate unit receives
new updates sooner through push updates than if the FortiGate unit receives only
scheduled updates. However, scheduled updates make sure that the FortiGate unit
receives the latest updates.
Enabling push updates is not recommended as the only method for obtaining updates.
The FortiGate unit might not receive the push notification. Also, when the FortiGate
unit receives a push notification it makes only one attempt to connect to the FDN and
download updates.
This section describes:
•
•
•
Enabling push updates
To enable push updates
1
2
3
Go to System > Update.
Select Allow Push Update.
Select Apply.
Push updates when FortiGate IP addresses change
The SETUP message that the FortiGate unit sends when you enable push updates
includes the IP address of the FortiGate interface that the FDN connects to. If your
FortiGate unit is running in NAT/Route mode, the SETUP message includes the
FortiGate external IP address. If your FortiGate unit is running in Transparent mode,
the SETUP message includes the FortiGate management IP address. The FDN must
be able to connect to this IP address for your FortiGate unit to be able to receive push
update messages. If your FortiGate unit is behind a NAT device, see “Enabling push
Whenever the external IP address of the FortiGate unit changes, the FortiGate unit
sends a new SETUP message to notify the FDN of the address change. As long as
the FortiGate unit sends this SETUP message and the FDN receives it, the FDN can
maintain the most up-to-date external IP address for the FortiGate unit.
The FortiGate unit sends the SETUP message if you change the external IP address
manually or if you have set the external interface addressing mode to DHCP or
PPPoE and your DHCP or PPPoE server changes the IP address.
If you have redundant connections to the Internet, the FortiGate unit also sends the
SETUP message when one Internet connection goes down and the FortiGate unit
fails over to the other Internet connection.
In Transparent mode if you change the management IP address, the FortiGate unit
also sends the SETUP message to notify the FDN of the address change.
FortiGate-800 Installation and Configuration Guide
123
Download from Www.Somanuals.com. All Manuals Search And Download.
Enabling push updates
Virus and attack definitions updates and registration
Enabling push updates through a NAT device
If the FDN can connect to the FortiGate unit only through a NAT device, you must
configure port forwarding on the NAT device and add the port forwarding information
to the push update configuration. Using port forwarding, the FDN connects to the
FortiGate unit using either port 9443 or an override push port that you specify.
Note: You cannot receive push updates through a NAT device if the external IP address of the
NAT device is dynamic (for example, set using PPPoE or DHCP).
Example: push updates through a NAT device
This example describes how to configure a FortiGate NAT device to forward push
updates to a FortiGate unit installed on its internal network. For the FortiGate unit on
the internal network to receive push updates, the FortiGate NAT device must be
configured with a port forwarding virtual IP. This virtual IP maps the IP address of the
external interface of the FortiGate NAT device and a custom port to the IP address of
the FortiGate unit on the internal network. This IP address can either be the external
IP address of the FortiGate unit if it is operating in NAT/Route mode, or the
Management IP address of the FortiGate unit if it is operating in Transparent mode.
Note: This example describes the configuration for a FortiGate NAT device. However, you can
use any NAT device with a static external IP address that can be configured for port forwarding.
124
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Enabling push updates
Figure 24: Example network topology: Push updates through a NAT device
FortiResponse
Distribution
Network (FDN)
Internet
Push update to
IP address 64.230.123.149
and port 45001
External IP
64.230.123.149
Virtual IP maps
64.230.123.149:45001
to
FortiGate-300
NAT Device
Esc
Enter
192.168.1.99:9443
External IP or
Management IP
192.168.1.99
FortiGate-800
I
N
T
E
R
N
A
L
E
X
T
E
R
N
A
L
D
M
Z
HA
1
2
3
4
CONSOLE
USB
Esc
Enter
P
W
R
8
Internal Network
General procedure
Use the following steps to configure the FortiGate NAT device and the FortiGate unit
on the internal network so that the FortiGate unit on the internal network can receive
push updates:
1
2
Add a port forwarding virtual IP to the FortiGate NAT device.
Add a firewall policy to the FortiGate NAT device that includes the port forwarding
virtual IP.
3
Configure the FortiGate unit on the internal network with an override push IP and port.
FortiGate-800 Installation and Configuration Guide
125
Download from Www.Somanuals.com. All Manuals Search And Download.
Enabling push updates
Virus and attack definitions updates and registration
Note: Before completing the following procedure, you should register the internal network
FortiGate unit so that it can receive push updates.
Adding a port forwarding virtual IP to the FortiGate NAT device
Use the following procedure to configure a FortiGate NAT device to use port
forwarding to forward push update connections from the FDN to a FortiGate unit on
the internal network.
To configure the FortiGate NAT device
Go to Firewall > Virtual IP.
Select New.
1
2
3
4
Type a name for the virtual IP.
In the External Interface section, select the external interface that the FDN connects
to.
For the example topology, select the external interface.
5
6
In the Type section, select Port Forwarding.
In the External IP Address section, type the external IP address that the FDN
connects to.
For the example topology, enter 64.230.123.149.
7
8
Type the External Service Port that the FDN connects to.
For the example topology, enter 45001.
In the Map to IP section, type the IP address of the FortiGate unit on the internal
network.
If the FortiGate unit is operating in NAT/Route mode, enter the IP address of the
external interface.
If the FortiGate unit is operating in Transparent mode, enter the management IP
address.
For the example topology, enter 192.168.1.99.
Set the Map to Port to 9443.
Set Protocol to UDP.
9
10
11
Select OK.
126
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Enabling push updates
Figure 25: Push update port forwarding virtual IP
Adding a firewall policy for the port forwarding virtual IP
To configure the FortiGate NAT device
1
2
Add a new external to internal firewall policy.
Configure the policy with the following settings:
Source
Destination
Schedule
Service
Action
External_All
The virtual IP added above.
Always
ANY
Accept
Selected.
NAT
3
Select OK.
Configuring the FortiGate unit with an override push IP and port
To configure the FortiGate unit on the internal network
1
2
3
Go to System > Update.
Select the Allow Push Update check box.
Select the Use override push check box.
FortiGate-800 Installation and Configuration Guide
127
Download from Www.Somanuals.com. All Manuals Search And Download.
Registering FortiGate units
Virus and attack definitions updates and registration
4
5
6
Set IP to the external IP address added to the virtual IP.
For the example topology, enter 64.230.123.149.
Set Port to the external service port added to the virtual IP.
For the example topology, enter 45001.
Select Apply.
The FortiGate unit sends the override push IP address and port to the FDN. The FDN
now uses this IP address and port for push updates to the FortiGate unit on the
internal network.
If the external IP address or external service port change, add the changes to the Use
override push configuration and select Apply to update the push information on the
FDN.
Figure 26: Example push update configuration
7
8
Select Apply.
You can select Refresh to make sure that push updates work.
Push Update changes to Available.
Registering FortiGate units
After purchasing and installing a new FortiGate unit, you can register the unit using
the web-based manager by going to System Update Support page, or by using a web
browser to connect to http://support.fortinet.com and selecting Product Registration.
Registration consists of entering your contact information and the serial numbers of
the FortiGate units that you or your organization purchased. You can register multiple
FortiGate units in a single session without re-entering your contact information.
Once registration is completed, Fortinet sends a Support Login user name and
password to your email address. You can use this user name and password to log on
to the Fortinet support web site to:
•
•
•
•
•
•
•
View your list of registered FortiGate units
Register additional FortiGate units
Add or change FortiCare Support Contract numbers for each FortiGate unit
View and change registration information
Download virus and attack definitions updates
Download firmware upgrades
Modify registration information after an RMA
Soon you will also be able to:
•
•
Access Fortinet user documentation
Access the Fortinet knowledge base
128
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Registering FortiGate units
All registration information is stored in the Fortinet Customer Support database. This
information is used to make sure that your registered FortiGate units can be kept up to
date. All information is strictly confidential. Fortinet does not share this information
with any third-party organizations for any reason.
This section describes:
•
•
FortiCare Service Contracts
Owners of a new FortiGate unit are entitled to 90 days of technical support services.
To continue receiving support services after the 90-day expiry date, you must
purchase a FortiCare Support Contract from an authorized Fortinet reseller or
distributor. Different levels of service are available so you can purchase the support
that you need. For maximum network protection, Fortinet strongly recommends that
all customers purchase a service contract that covers antivirus and attack definition
updates. See your Fortinet reseller or distributor for details of packages and pricing.
To activate the FortiCare Support Contract, you must register the FortiGate unit and
add the FortiCare Support Contract number to the registration information. You can
also register the FortiGate unit without purchasing a FortiCare Support Contract. In
that case, when you purchase a FortiCare Support Contract you can update the
registration information to add the support contract number.
A single FortiCare Support Contract can cover multiple FortiGate units. You must
enter the same service contract number for each of the FortiGate models covered by
the service contract.
FortiGate-800 Installation and Configuration Guide
129
Download from Www.Somanuals.com. All Manuals Search And Download.
Registering FortiGate units
Virus and attack definitions updates and registration
Registering the FortiGate unit
Before registering a FortiGate unit, you require the following information:
•
Your contact information including:
•
•
•
First and last name
Company name
Email address (Your Fortinet support login user name and password will be
sent to this email address.)
•
•
Address
Contact phone number
•
•
A security question and an answer to the security question.
This information is used for password recovery. The security question should be a
simple question that only you know the answer to. The answer should not be easy
to guess.
The product model and serial number for each FortiGate unit that you want to
register.
The serial number is located on a label on the bottom of the FortiGate unit.
You can view the Serial number from the web-based manager by going to
System > Status.
The serial number is also available from the CLI using the get system status
command.
•
FortiCare Support Contract numbers, if you purchased FortiCare Support
Contracts for the FortiGate units that you want to register.
To register one or more FortiGate units
1
2
Go to System > Update > Support.
Enter your contact information on the product registration form.
Figure 27: Registering a FortiGate unit (contact information and security question)
3
Provide a security question and an answer to the security question.
130
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Updating registration information
4
5
6
Select the model number of the Product Model to register.
Enter the Serial Number of the FortiGate unit.
If you have purchased a FortiCare Support Contract for this FortiGate unit, enter the
support contract number.
Figure 28: Registering a FortiGate unit (product information)
7
Select Finish.
If you have not entered a FortiCare Support Contract number (SCN) you can return to
the previous page to enter the number. If you do not have a FortiCare Support
Contract, you can select Continue to complete the registration.
If you have entered a support contract number, a real-time validation is performed to
verify that the SCN information matches the FortiGate unit. If the information does not
match you can try entering it again.
A web page is displayed that contains detailed information about the Fortinet technical
support services available to you for the registered FortiGate unit.
Your Fortinet support user name and password is sent to the email address provided
with your contact information.
Updating registration information
You can use your Fortinet support user name and password to log on to the Fortinet
Support web site at any time to view or update your Fortinet support information.
This section describes:
•
•
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
131
Download from Www.Somanuals.com. All Manuals Search And Download.
Updating registration information
Virus and attack definitions updates and registration
Recovering a lost Fortinet support password
If you provided a security question and answer when you registered on the Fortinet
support web site, you can use the following procedure to receive a replacement
password. If you did not provide a security question and answer, contact Fortinet
technical support.
To recover a lost Fortinet support password
Go to System > Update > Support.
Select Support Login.
1
2
3
4
5
Enter your Fortinet support user name.
Select Forgot your password?
Enter your email address and select Submit.
The security question that you entered when you registered is displayed.
6
Enter the answer to your security question and select Get Password.
If you entered the correct answer to the security question, an email containing a new
password is sent to your email address. You can use your current user name and this
password to log into the Fortinet support web site.
7
8
Select Support Login.
When you receive your new password, enter your user name and new password to
log into the Fortinet support web site.
Viewing the list of registered FortiGate units
To view the list of registered FortiGate units
Go to System > Update > Support.
Select Support Login.
1
2
3
4
5
Enter your Fortinet support user name and password.
Select Login.
Select View Products.
The list of FortiGate products that you have registered is displayed. For each
FortiGate unit, the list includes the serial number and current support options for that
unit.
132
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Updating registration information
Figure 29: Sample list of registered FortiGate units
Registering a new FortiGate unit
To register a new FortiGate unit
1
2
3
4
5
6
7
8
Go to System > Update > Support.
Select Support Login.
Enter your Fortinet support user name and password.
Select Login.
Select Add Registration.
Select the model number of the product model that you want to register.
Enter the serial number of the FortiGate unit.
If you have purchased a FortiCare Support Contract for this FortiGate unit, enter the
support contract number.
9
Select Finish.
The list of FortiGate products that you have registered is displayed. The list now
includes the new FortiGate unit.
Adding or changing a FortiCare Support Contract number
To add or change a FortiCare Support Contract number
1
2
3
4
5
Go to System > Update > Support.
Select Support Login.
Enter your Fortinet support user name and password.
Select Login.
Select Add/Change Contract number.
FortiGate-800 Installation and Configuration Guide
133
Download from Www.Somanuals.com. All Manuals Search And Download.
Updating registration information
Virus and attack definitions updates and registration
6
Select the Serial Number of the FortiGate unit for which to add or change a FortiCare
Support Contract number.
7
8
Add the new Support Contract number.
Select Finish.
The list of FortiGate products that you have registered is displayed. The list now
includes the new support contract information.
Changing your Fortinet support password
To change your Fortinet support password
1
2
3
4
5
6
7
8
Go to System > Update > Support.
Select Support Login.
Enter your Fortinet support user name and password.
Select Login.
Select My Profile.
Select Change Password.
Enter your current password.
Enter and confirm a new password.
An email is sent to your email address confirming that your password has been
changed. Use your current user name and new password the next time you log into
the Fortinet technical support web site.
Changing your contact information or security question
To change your contact information or security question
1
2
3
4
5
6
7
8
9
Go to System > Update > Support.
Select Support Login.
Enter your Fortinet support user name and password.
Select Login.
Select My Profile.
Select Edit Profile.
Make the required changes to your contact information.
Make the required changes to your security question and answer.
Select Update Profile.
Your changes are saved to the Fortinet technical support database. If you changed
your contact information, the changes are displayed.
134
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Virus and attack definitions updates and registration
Updating registration information
Downloading virus and attack definitions updates
Use the following procedure to manually download virus and attack definitions
updates. This procedure also describes how to install the attack definitions updates on
your FortiGate unit.
To download virus and attack definitions updates
Go to System > Update > Support.
Select Support Login.
1
2
3
4
5
6
7
Enter your Fortinet support user name and password.
Select Login.
Select Download Virus/Attack Update.
If required, select the FortiOS version.
Select the virus and attack definitions to download.
Figure 30: Downloading virus and attack definition updates
For information about how to install the downloaded files, see “Manual virus definition
FortiGate-800 Installation and Configuration Guide
135
Download from Www.Somanuals.com. All Manuals Search And Download.
Registering a FortiGate unit after an RMA
Virus and attack definitions updates and registration
Registering a FortiGate unit after an RMA
The Return Material Authorization (RMA) process starts when a registered FortiGate
unit does not work properly because of a hardware failure. If this happens while the
FortiGate unit is protected by hardware coverage, you can return the FortiGate unit
that is not functioning to your reseller or distributor.
The RMA is recorded and you will receive a replacement unit. Fortinet adds the RMA
information to the Fortinet support database. When you receive the replacement unit
you can use the following procedure to update your product registration information.
To register a FortiGate unit after an RMA
Go to System > Update > Support.
Select Support Login.
1
2
3
4
5
6
Enter your Fortinet support user name and password to log in.
Select Add Registration.
Select the link to replace a unit with a new unit from an RMA.
Select Finish.
The list of FortiGate products that you have registered is displayed. The list now
includes the replacement FortiGate unit. All support levels are transferred to the
replacement unit.
136
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Network configuration
You can use the System Network page to change any of the following FortiGate
network settings:
•
•
•
•
•
•
•
•
Configuring zones
In NAT/Route mode, you can use zones to group related interfaces and VLAN
subinterfaces. Grouping interfaces and VLAN subinterfaces into zones simplifies
policy creation. If you group interfaces an VLAN subinterfaces into a zone, you can
configure policies for connections to and from this zone, rather than to and from each
interface and VLAN subinterface.
You can add zones, rename and edit zones, and delete zones from the zone list.
A new zone does not appear in the policy grid until you add an interface to it (see
“Adding an interface to a zone” on page 139) and add a firewall address for it (see
This section describes:
•
•
FortiGate-800 Installation and Configuration Guide
137
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring interfaces
Network configuration
Adding zones
The new zone does not appear in the policy grid until you add an interface to it, see
To add a zone
1
2
3
Go to System > Network > Zone.
Select New.
Type a name for the zone.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
Select the Block intra-zone traffic check box if you want to block traffic between
interfaces in the same zone.
5
Select OK.
Deleting zones
You must remove all interfaces and VLAN subinterfaces from a zone before you can
delete the zone. You can only delete zones that have the Delete icon
in the zone list.
beside them
To delete a zone
1
Go to System > Network > Zone.
2
3
Select Delete
to remove a zone from the list.
Select OK to delete the zone.
Configuring interfaces
Use the following procedures to configure FortiGate interfaces and VLAN
subinterfaces. All of these procedures can be used for physical FortiGate interfaces
and for VLAN subinterfaces.
•
•
•
•
•
•
•
•
•
•
•
•
138
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring interfaces
Viewing the interface list
To view the interface list
Go to System > Network > Interface.
1
The interface list is displayed. The interface list shows the following status information
for all the FortiGate interfaces and VLAN subinterfaces:
•
•
•
•
•
The name of the interface
The IP address of the interface
The netmask of the interface
The zone that the interface has been added to
The administrative access configuration for the interface
about administrative access options.
•
The administrative status for the interface
If the administrative status is a green arrow, the interface is up and can accept
network traffic. If the administrative status is a red arrow, the interface is
administratively down and cannot accept traffic. To change the administrative
Changing the administrative status of an interface
You can use the following procedures to start an interface that is administratively
down and stop and interface that is administratively up.
To start up an interface that is administratively down
1
2
Go to System > Network > Interface.
The interface list is displayed.
Select Bring Up for the interface that you want to start.
To stop an interface that is administratively up
1
From the FortiGate CLI, enter the command:
set system interface <intf_str> config status down
You can only stop an interface that is administratively up from the FortiGate command
line interface (CLI).
Adding an interface to a zone
If you have added zones to the FortiGate unit, you can use the following procedure to
add an interface or VLAN subinterface to a zone.
You must delete any firewall addresses added to an interface or VLAN subinterface
before adding the interface or VLAN subinterface to a zone. For information about
When you add an interface or VLAN subinterface to a zone, you cannot add firewall
addresses to the interface or VLAN subinterface and the interface or VLAN
subinterface does not appear on the policy grid.
FortiGate-800 Installation and Configuration Guide
139
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring interfaces
Network configuration
To add an interface to a zone
1
2
3
Go to System > Network > Interface.
Choose the interface or VLAN subinterface to add to a zone and select Modify
From the Belong to Zone list, select the zone that you want to add the interface to.
.
The belong to zone list only appears if you have added zones and if you have not
added firewall addresses for the interface.
4
5
Select OK to save the changes.
Repeat these steps to add more interfaces or VLAN subinterfaces to zones.
Configuring an interface with a manual IP address
You can change the static IP address of any FortiGate interface.
To change an interface with a manual IP address
1
2
3
4
Go to System > Network > Interface.
Choose an interface and select Modify
Set Addressing Mode to Manual.
.
Change the IP address and Netmask as required.
The IP address of the interface must be on the same subnet as the network the
interface is connecting to.
Two interfaces cannot have the same IP address and cannot have IP addresses on
the same subnet.
5
Select OK to save your changes.
If you changed the IP address of the interface to which you are connecting to manage
the FortiGate unit, you must reconnect to the web-based manager using the new
interface IP address.
Configuring an interface for DHCP
You can configure any FortiGate interface to use DHCP.
If you configure the interface to use DHCP, the FortiGate unit automatically broadcasts
a DHCP request. You can disable connect to server if you are configuring the
FortiGate unit offline and you do not want the FortiGate unit to send the DHCP
request.
By default, the FortiGate unit also retrieves a default gateway IP address and DNS
server IP addresses from the DHCP server. You can disable the option Retrieve
default gateway and DNS from server if you do not want the DHCP server to configure
these FortiGate settings.
To configure an interface for DHCP
1
2
3
Go to System > Network > Interface.
Choose an interface and select Modify
.
In the Addressing Mode section, select DHCP.
140
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring interfaces
4
Clear the Retrieve default gateway and DNS from server check box if you do not want
the FortiGate unit to obtain a default gateway IP address and DNS server IP
addresses from the DHCP server.
By default, this option is enabled.
5
6
7
Clear the Connect to Server check box if you do not want the FortiGate unit to connect
to the DHCP server.
By default, this option is enabled.
Select Apply.
The FortiGate unit attempts to contact the DHCP server from the interface to set the
IP address, netmask, default gateway IP address, and DNS server IP addresses.
Select Status to refresh the addressing mode status message.
initializing
connecting
connected
No activity
The FortiGate unit is attempting to connect to the DHCP server.
The FortiGate unit retrieves an IP address, netmask, and other settings from
the DHCP server.
failed
The FortiGate unit was unable to retrieve an IP address and other
information from the DHCP server.
8
Select OK.
Configuring an interface for PPPoE
Use the following procedure to configure any FortiGate interface to use PPPoE.
If you configure the interface to use PPPoE, the FortiGate unit automatically
broadcasts a PPPoE request. You can disable connect to server if you are configuring
the FortiGate unit offline and you do not want the FortiGate unit to send the PPPoE
request.
By default, the FortiGate unit also retrieves a default gateway IP address and DNS
server IP addresses from the PPPoE server. You can disable the option Retrieve
default gateway and DNS from server if you do not want the PPPoE server to
configure these FortiGate settings.
To configure an interface for PPPoE
1
2
3
4
5
Go to System > Network > Interface.
Choose an interface and select Modify
.
In the Addressing Mode section, select PPPoE.
Enter your PPPoE account User Name and Password.
Clear the Retrieve default gateway and DNS from server check box if you do not want
the FortiGate unit to obtain a default gateway IP address and DNS server IP
addresses from the PPPoE server.
By default, this option is enabled.
6
Clear the Connect to Server check box if you do not want the FortiGate unit to connect
to the PPPoE server.
By default, this option is enabled.
FortiGate-800 Installation and Configuration Guide
141
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring interfaces
Network configuration
7
8
Select Apply.
The FortiGate unit attempts to contact the PPPoE server from the interface to set the
IP address, netmask, default gateway IP address, and DNS server IP addresses.
Select Status: to refresh the addressing mode status message. Possible messages:
initializing
connecting
connected
No activity
The FortiGate unit is attempting to connect to the DHCP server.
The FortiGate unit retrieves an IP address, netmask, and other settings from
the PPPoE server.
failed
The FortiGate unit was unable to retrieve an IP address and other
information from the PPPoE server.
9
Select OK.
Adding a secondary IP address to an interface
You can use the CLI to add a secondary IP address to any FortiGate interface. The
secondary IP address cannot be the same as the primary IP address but it can be on
the same subnet.
To add a secondary IP address from the CLI enter the command:
set system interface <intf_str> config secip <second_ip>
<netmask_ip>
You can also configure management access and add a ping server to the secondary
IP address.
set system interface <intf_str> config secallowaccess ping
https ssh snmp http telnet
set system interface <intf_str> config secgwdetect enable
Adding a ping server to an interface
Add a ping server to an interface if you want the FortiGate unit to confirm connectivity
with the next hop router on the network connected to the interface. Adding a ping
server is required for routing failover. See “Adding destination-based routes to the
To add a ping server to an interface
1
2
3
Go to System > Network > Interface.
Choose an interface and select Modify
.
Set Ping Server to the IP address of the next hop router on the network connected to
the interface.
4
Select the Enable check box.
The FortiGate unit uses dead gateway detection to ping the Ping Server IP address to
make sure that the FortiGate unit can connect to this IP address. To configure dead
gateway detection, see “Modifying the Dead Gateway Detection settings” on
5
Select OK to save the changes.
142
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring interfaces
Controlling administrative access to an interface
For a FortiGate unit running in NAT/Route mode, you can control administrative
access to an interface to control how administrators access the FortiGate unit and the
FortiGate interfaces to which administrators can connect.
Controlling administrative access for an interface connected to the Internet allows
remote administration of the FortiGate unit from any location on the Internet. However,
allowing remote administration from the Internet could compromise the security of
your FortiGate unit. You should avoid allowing administrative access for an interface
connected to the Internet unless this is required for your configuration. To improve the
security of a FortiGate unit that allows remote administration from the Internet:
•
•
•
•
Use secure administrative user passwords,
Change these passwords regularly,
Enable secure administrative access to this interface using only HTTPS or SSH,
To control administrative access to an interface
1
2
3
Go to System > Network > Interface.
Choose an interface and select Modify
.
Select the Administrative Access methods for the interface.
HTTPS
PING
To allow secure HTTPS connections to the web-based manager through this
interface.
If you want this interface to respond to pings. Use this setting to verify your
installation and for testing.
HTTP
To allow HTTP connections to the web-based manager through this interface.
HTTP connections are not secure and can be intercepted by a third party.
SSH
To allow SSH connections to the CLI through this interface.
SNMP
To allow a remote SNMP manager to request SNMP information by connecting to
TELNET To allow Telnet connections to the CLI through this interface. Telnet connections
are not secure and can be intercepted by a third party.
4
Select OK to save the changes.
FortiGate-800 Installation and Configuration Guide
143
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring interfaces
Network configuration
Changing the MTU size to improve network performance
To improve network performance, you can change the maximum transmission unit
(MTU) of the packets that the FortiGate unit transmits from any interface. Ideally, this
MTU should be the same as the smallest MTU of all the networks between the
FortiGate unit and the destination of the packets. If the packets that the FortiGate unit
sends are larger, they are broken up or fragmented, which slows down transmission.
Experiment by lowering the MTU to find an MTU size for best network performance.
To change the MTU size of the packets leaving an interface
1
2
3
4
Go to System > Network > Interface.
Choose an interface and select Modify
Select Override default MTU value (1500).
Set the MTU size.
.
Set the maximum packet size. For manual and DHCP addressing mode the MTU size
can be from 576 to 1500 bytes. For PPPoE addressing mode the MTU size can be
from 576 to 1492 bytes.
Configuring traffic logging for connections to an interface
To configure traffic logging for connections to an interface
1
2
3
Go to System > Network > Interface.
Choose an interface and select Modify
.
Select the Log check box to record log messages whenever a firewall policy accepts a
connection to this interface.
4
Select OK to save the changes.
Configuring the management interface in Transparent mode
Configure the management interface in Transparent mode to set the management IP
address of the FortiGate unit. Administrators connect to this IP address to administer
the FortiGate unit. The FortiGate also uses this IP address to connect to the FDN for
You can also configure the management interface to control how administrators
connect to the FortiGate unit for administration and the FortiGate interfaces to which
administrators can connect.
Controlling administrative access to a FortiGate interface connected to the Internet
allows remote administration of the FortiGate unit from any location on the Internet.
However, allowing remote administration from the Internet could compromise the
security of the FortiGate unit. You should avoid allowing administrative access for an
interface connected to the Internet unless this is required for your configuration. To
improve the security of a FortiGate unit that allows remote administration from the
Internet:
•
•
Use secure administrative user passwords,
Change these passwords regularly,
144
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
VLAN overview
•
•
Enable secure administrative access to this interface using only HTTPS or SSH,
To configure the management interface in Transparent mode
Go to System > Network > Management.
1
2
Change the Management IP and Netmask as required.
This must be a valid address for the network that you want to manage the FortiGate
unit from.
3
4
Add a default gateway IP address if the FortiGate unit must connect to a default
gateway to reach the management computer.
Select the administrative access methods for each interface.
HTTPS
PING
To allow secure HTTPS connections to the web-based manager through this
interface.
If you want this interface to respond to pings. Use this setting to verify your
installation and for testing.
HTTP
To allow HTTP connections to the web-based manager through this interface.
HTTP connections are not secure and can be intercepted by a third party.
SSH
To allow SSH connections to the CLI through this interface.
SNMP
To allow a remote SNMP manager to request SNMP information by connecting to
TELNET To allow Telnet connections to the CLI through this interface. Telnet connections
are not secure and can be intercepted by a third party.
5
6
Select Log for each interface that you want to record log messages whenever a
firewall policy accepts a connection to this interface.
Select Apply to save the changes.
VLAN overview
FortiGate units support IEEE 802.1Q Virtual LAN (VLAN) technology. A VLAN is group
of PCs, servers, and other network devices that communicate as if they were on the
same LAN segment, even though they may not be. For example, the workstations and
servers for an accounting department could be scattered throughout an office,
connected to numerous network segments, but they can still belong to the same
VLAN.
A VLAN segregates devices logically instead of physically. Each VLAN is treated as a
broadcast domain. Devices in VLAN 1 can connect with other devices in VLAN 1, but
cannot connect with devices in other VLANs. The communication among devices on a
VLAN is independent of the physical network.
A VLAN segregates devices by adding 802.1Q VLAN tags to all of the packets sent
and received by the devices in the VLAN. VLAN tags are 4-byte frame extensions that
contain a VLAN identifier as well as other information.
FortiGate-800 Installation and Configuration Guide
145
Download from Www.Somanuals.com. All Manuals Search And Download.
VLANs in NAT/Route mode
Network configuration
In a typical VLAN configuration, 802.1Q-compliant VLAN layer-2 switches or layer-3
routers or firewalls add VLAN tags to packets. Packets passing between devices in
the same VLAN can be handled by layer 2 switches. Packets passing between
devices in different VLANs must be handled by a layer 3 device such as router,
firewall, or layer 3 switch.
Operating in NAT/Route mode, the FortiGate unit functions as a layer 3 device to
control the flow of packets between VLANs. See “VLANs in NAT/Route mode” on
page 146 for more information.
Operating in Transparent mode, the FortiGate unit functions as a layer 2 device to
control the flow of packets between segments in the same VLAN. See “Virtual
VLANs in NAT/Route mode
In NAT/Route mode, FortiGate units support VLANs for constructing VLAN trunks
between an IEEE 802.1Q-compliant switch (or router) and the FortiGate unit. Normally
the FortiGate unit internal interface connects to a VLAN trunk on an internal switch,
and the external interface connects to an upstream Internet router untagged. The
FortiGate unit can then apply different policies for traffic on each VLAN that connects
to the internal interface.
In this configuration, you add VLAN subinterfaces to the FortiGate internal interface
that have VLAN IDs that match the VLAN IDs of packets in the VLAN trunk. The
FortiGate unit directs packets with VLAN IDs, to subinterfaces with matching VLAN
IDs.
You can also define VLAN subinterfaces on all FortiGate interfaces. The FortiGate unit
can add VLAN tags to packets leaving a VLAN subinterface or remove VLAN tags
from incoming packets and add different VLAN tags to outgoing packets.
Rules for VLAN IDs
Two VLAN subinterfaces added to the same physical interface cannot have the same
VLAN ID. However, you can add two or more VLAN subinterfaces with the same
VLAN IDs to different physical interfaces. There is no internal connection or link
between two VLAN subinterfaces with same VLAN ID. Their relationship is the same
as the relationship between any two FortiGate network interfaces.
Rules for VLAN IP addresses
IP addresses of all FortiGate interfaces cannot overlap. That is, the IP addresses of all
interfaces must be on different subnets. This rule applies to both physical interfaces
and to VLAN subinterfaces.
Note: You can enter the CLI command set system ip-overlap enableto allow IP
address overlap. If you enter this command, multiple VLAN interfaces can have an IP address
that is part of a subnet used by another interface. This command is recommended for advanced
users only.
146
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Virtual domains in Transparent mode
Adding VLAN subinterfaces
The VLAN ID of each VLAN subinterface must match the VLAN ID added by the IEEE
802.1Q-compliant router. The VLAN ID can be any number between 1 and 4096.
Each VLAN subinterface must also be configured with its own IP address and
netmask.
You add VLAN subinterfaces to the physical interface that receives VLAN-tagged
packets.
To add VLAN subinterfaces
1
2
3
Go to System > Network > Interface.
Select New VLAN to add a VLAN subinterface.
Enter a Name to identify the VLAN subinterface.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
Select the interface that receives the VLAN packets intended for this VLAN
subinterface.
Enter the VLAN ID that matches the VLAN ID of the packets to be received by this
VLAN subinterface.
The VLAN ID can be any number between 1 and 4096 but must match the VLAN ID
added by the IEEE 802.1Q-compliant router or switch.
6
7
Configure the VLAN subinterface settings as you would for any FortiGate interface.
You can add the VLAN subinterface to a zone, configure addressing, add a ping
server, and configure administrative access to the VLAN subinterface. For more
Select OK to save your changes.
The FortiGate unit adds the new subinterface to the interface that you selected in
step 4.
Virtual domains in Transparent mode
In Transparent mode, The FortiGate unit can apply firewall policies and services, such
as virus scanning, to traffic on an IEEE 802.1 VLAN trunk. The FortiGate unit
operating in Transparent mode can be inserted into the trunk without making changes
to the network. In a typical configuration, the FortiGate internal interface accepts
VLAN packets on a VLAN trunk from a VLAN switch or router connected to internal
VLANs. The FortiGate external interface forwards tagged packets through the trunk to
an external VLAN switch or router. This external switch or router could be connected
to the Internet. The FortiGate unit can be configured to apply different policies for
traffic on each VLAN in the trunk.
FortiGate-800 Installation and Configuration Guide
147
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual domains in Transparent mode
Network configuration
To support VLANs in Transparent mode, you add virtual domains to the FortiGate unit.
A virtual domain contains at least 2 VLAN subinterfaces. For VLAN traffic to be able to
pass between the FortiGate Internal and external interface you would add a VLAN
subinterface to the internal interface and another VLAN subinterface to the external
interface. If these VLAN subinterfaces have the same VLAN IDs, the FortiGate unit
applies firewall policies to the traffic on this VLAN. If these VLAN subinterfaces have
different VLAN IDs, or if you add more than two VLAN subinterfaces to the virtual
domain, you can also use firewall policies to control connections between VLANs.
When the FortiGate unit receives a VLAN tagged packet at an interface, the packet is
directed to the VLAN subinterface with matching VLAN ID. The VLAN subinterface
removes the VLAN tag and assigns a destination interface to the packet based on its
destination MAC address. The firewall policies for this source and destination VLAN
subinterface pair are applied to the packet. If the packet is accepted by the firewall,
the FortiGate unit forwards the packet to the destination VLAN subinterface. The
destination VLAN ID is added to the packet and it is sent to the VLAN trunk.
When a packet enters a virtual domain on the FortiGate unit, it is confined to that
virtual domain. In a given domain, you can only create firewall policies for connections
between VLAN subinterfaces or zones in the virtual domain. The packet never
crosses the virtual domain border.
The FortiGate-800 supports 64 virtual domains.
•
•
•
•
Figure 31: FortiGate unit with two virtual domains
VLAN Switch or router
FortiGate unit
VLAN1
Virtual Domain 1
Internal
External
VLAN1
content filtering
antivirus
NIDS
VLAN1
VLAN2
VLAN3
VLAN2
VLAN3
VLAN1
VLAN1
VLAN Switch
or router
Internet
VLAN2
VLAN3
VLAN trunk
Virtual Domain 2
content filtering
VLAN trunk
VLAN2
VLAN3
VLAN2
VLAN3
antivirus
NIDS
148
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Virtual domains in Transparent mode
Virtual domain properties
A virtual domain has the following exclusive properties:
VLAN name,
VLAN ID,
•
•
•
•
•
VLAN interface assignment,
VLAN zone assignment (optional),
Firewall policy.
Virtual domains share the following global properties with other processes on the
FortiGate unit:
•
•
•
•
•
•
System settings,
Firewall policy objects (addresses, services, schedule, content profiles, and so on),
User information,
NIDS settings,
Antivirus, Web filter, Mail filter settings,
Log & report settings.
In addition to the global properties, virtual domains share a common administrative
model. Administrators have access to all of the virtual domains on the FortiGate unit.
Only their administrative access level varies.
Configuring a virtual domain
Configure a virtual domain by adding the virtual domain to the FortiGate configuration.
Then add matching pairs of VLAN subinterfaces to the virtual domain.
•
•
•
Adding a virtual domain
Use the following procedure to add a virtual domain to the FortiGate unit. You must
add at least one virtual domain to support VLANs in Transparent mode. Add more
virtual domains to simplify configuration if you are planning to add a large number of
VLANs.
To add a virtual domain
1
2
3
4
Go to System > Virtual Domain.
Select New to add a virtual domain.
Type a Name for the virtual domain.
Select OK to add the virtual domain.
FortiGate-800 Installation and Configuration Guide
149
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual domains in Transparent mode
Network configuration
Adding VLAN subinterfaces to a virtual domain
Use the following procedure to add VLAN subinterfaces to a virtual domain. You must
add at least two VLAN subinterfaces to each virtual domain. In most configurations a
virtual domain is used to send VLAN-tagged packets received at one FortiGate
physical interface to another FortiGate physical interface (for example, from the
internal interface to the external interface). For this to occur, you must add VLAN
subinterfaces to the receiving and sending physical interfaces (for example, to the
internal and external interfaces.
To add VLAN subinterfaces to a virtual domain
Go to System > Network > VLAN.
1
2
3
4
5
Select the Virtual Domain to add the VLAN subinterface to.
Select New to add a VLAN subinterface.
Type a Name for the VLAN subinterface.
Select the interface to associate the VLAN subinterface with.
The VLAN subinterface must be added to the FortiGate interface that receives the
VLAN-tagged packets.
6
7
Enter a VLAN ID for the VLAN subinterface.
The VLAN ID can be any number between 1 and 4095.
Optionally, select a zone to add the VLAN subinterface to a zone.
8
9
Select OK to add the VLAN subinterface.
Repeat these steps to add more VLAN subinterfaces to the virtual domain.
To configure management access and traffic logging for VLAN subinterfaces
1
2
Go to System > Network > Management.
Configure management access as required for the VLAN subinterfaces that you have
added.
You can select HTTPS, PING, SSH, SNMP, HTTP, or TELNET.
3
Select Log to configure traffic logging for the VLAN subinterfaces that you have
added.
Adding zones to virtual domains
Add zones to a virtual domain to group together related VLAN subinterfaces. Use
zones to simplify firewall policy creation if you have many VLAN subinterfaces in a
virtual domain. For more information about zones, see “Configuring zones” on
page 137. Use the following procedure to add a zone to a virtual domain.
150
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Virtual domains in Transparent mode
Figure 32: FortiGate unit containing a virtual domain with zones
VLAN Switch or router
FortiGate unit
Virtual Domain
VLAN1
VLAN2
VLAN3
External
VLAN1
Internal
VLAN1
VLAN2
VLAN3
VLAN2
VLAN3
VLAN1
VLAN1
zone1
VLAN Switch
or router
Internet
VLAN trunk
VLAN trunk
zone2
VLAN2
VLAN3
VLAN2
VLAN3
Multiple zones in a single virtual domain cannot be connected to a single VLAN trunk.
This configuration is correct because each zone is connected to a different VLAN
trunk (zone1 connected to the VLAN trunk on the internal interface and zone2
connected to the VLAN trunk on the external interface). If you were to add another
zone (for example, zone3 connected to the VLAN trunk on the internal interface) the
FortiGate unit would not be able to successfully differentiate between traffic for zone1
and zone3. This is the case because both zone 1 and zone3 traffic would be routed to
the same MAC address.
To add a zone to a virtual domain
Go to System > Network > Zone.
Select New to add a zone.
1
2
3
4
5
Type a Name for the zone.
Select the Virtual Domain to add the zone to.
Optionally select Block intra-zone traffic to block traffic between VLAN subinterfaces
in the same zone.
6
Select OK to add the zone.
To add VLAN subinterfaces to a zone
1
2
Go to System > Network > VLAN.
Set Virtual Domain to All or to the virtual domain containing the VLAN subinterfaces to
add to a zone.
3
Select List to list all of VLAN subinterfaces added to the FortiGate unit or to the
selected virtual domain.
4
5
6
For a VLAN subinterface to add to a zone, select Modify
.
From the zone list, select the name of the zone to add the VLAN subinterface to.
Select OK to save your changes.
VLAN subinterface to a zone if you are adding new VLAN subinterfaces to a virtual
domain to which you have already added zones.
FortiGate-800 Installation and Configuration Guide
151
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual domains in Transparent mode
Network configuration
Adding firewall policies for virtual domains
Once the network configuration for the virtual domain is complete, you must create
firewall policies for the virtual domain to allow packets to flow through the firewall
between VLAN subinterfaces.
•
•
Adding addresses for virtual domains
Before you can create firewall policies for a virtual domain, you must add source and
destination addresses for the VLAN subinterfaces and zones added to the virtual
domain.
1
2
3
4
5
6
7
Go to Firewall > Address.
Select the VLAN subinterface or zone to which to add the address.
Select New to add a new address.
Enter an Address Name to identify the address.
Enter the IP Address.
Enter the NetMask.
Select OK to add the address.
Adding firewall policies for virtual domains
Add Firewall policies to control connections and traffic between FortiGate VLAN
subinterfaces and zones in a virtual domain.
1
2
3
4
Go to Firewall > Policy.
Select the Virtual Domain to which you want to add the policy.
Select a source VLAN subinterface or zone.
Select a destination VLAN subinterface or zone.
VLAN subinterfaces or zones only appear in the source and destination lists if they
have been added to the selected virtual domain and if you have added firewall
addresses for them.
The source and destination cannot be the same VLAN subinterface or zone.
5
6
7
Select New to add a new policy.
Configure the policy.
Select OK to add the policy.
152
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Adding DNS server IP addresses
Deleting virtual domains
You must remove all VLAN subinterfaces and zones that have been added to the
virtual domain before you can delete the virtual domain. To remove VLAN
subinterfaces and zones you must remove all firewall policies and firewall addresses
for the VLAN subinterfaces and zones. You can only delete virtual domains that have
the Delete icon beside them in the zone list.
Delete the virtual domain components in the following order:
•
•
•
•
•
firewall policies
source and destination addresses
VLAN subinterfaces
zones
the virtual domain
Adding DNS server IP addresses
Several FortiGate functions, including sending email alerts and URL blocking, use
DNS. Use the following procedure to add the IP addresses of the DNS servers that
your FortiGate unit can connect to. DNS server IP addresses are usually supplied by
your ISP.
To add DNS server IP addresses
1
2
3
Go to System > Network > DNS.
Change the primary and secondary DNS server IP addresses as required.
Select Apply to save the changes.
Configuring routing
This section describes how to configure FortiGate routing. You can configure routing
to add static routes from the FortiGate unit to local routers. Using policy routing you
can increase the flexibility of FortiGate routing to support more advanced routing
functions.
You can also use routing to create a multiple Internet connection configuration that
supports redundancy and load sharing between the two Internet connections.
This section describes:
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
153
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring routing
Network configuration
Adding a default route
You can add a default route for network traffic leaving the external interface.
To add a default route
1
2
3
4
5
Go to System > Network > Routing Table.
Select New to add a new route.
Set the Source IP and Netmask to 0.0.0.0.
Set the Destination IP and Netmask to 0.0.0.0.
Set Gateway 1 to the IP address of the routing gateway that routes traffic to the
Internet.
6
Select OK to save the default route.
Note: Only one default route can be active at a time. If two default routes are added to the
routing table, only the default route closest to the top of the routing table is active.
Adding destination-based routes to the routing table
You can add destination-based routes to the FortiGate routing table to control the
destination of traffic exiting the FortiGate unit. You configure routes by adding
destination IP addresses and netmasks and adding gateways for these destination
addresses. The gateways are the next hop routers to which to route traffic that
matches the destination addresses in the route.
You can add one or two gateways to a route. If you add one gateway, the FortiGate
unit routes the traffic to that gateway. You can add a second gateway to route traffic to
the second gateway if the first gateway fails.
To support routing failover, the IP address of each gateway must be added to the ping
server of the interface connected to the same network as the gateway. For information
To add destination-based routes to the routing table
Go to System > Network > Routing Table.
Select New to add a new route.
1
2
3
4
Type the Destination IP address and netmask for the route.
Add the IP address of Gateway #1.
Gateway #1 is the IP address of the primary destination for the route.
Gateway #1 must be on the same subnet as a Fortigate interface.
If you are adding a static route from the FortiGate unit to a single destination router,
you need to specify only one gateway.
5
Add the IP address of Gateway #2, if you want to route traffic to multiple gateways.
154
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring routing
6
7
8
Set Device #1 to the FortiGate interface or VLAN subinterface through which to route
traffic to connect to Gateway #1.
You can select the name of an interface, VLAN subinterface, or Auto (the default). If
you select the name of an interface or VLAN subinterface the traffic is routed to that
interface. If you select Auto the system selects the interface according to the following
rules:
•
If the Gateway #1 IP address is on the same subnet as a FortiGate interface or
VLAN subinterface, the system sends the traffic to that interface.
•
If the Gateway #1 IP address is not on the same subnet as a FortiGate interface or
VLAN subinterface, the system routes the traffic to the external interface, using the
default route.
You can use Device #1 to send packets to an interface that is on a different subnet
than the destination IP address of the packets without routing them using the default
route.
Set Device #2 to the FortiGate interface or VLAN subinterface through which to route
traffic to connect to Gateway #2.
You can select the name of an interface, VLAN subinterface, or Auto (the default). If
you select the name of an interface or VLAN subinterface the traffic is routed to that
interface. If you select Auto the system selects the interface according to the following
rules:
•
If the Gateway #2 IP address is on the same subnet as a FortiGate interface or
VLAN subinterface, the system sends the traffic to that interface.
•
If the Gateway #2 IP address is not on the same subnet as a FortiGate interface or
VLAN subinterface, the system routes the traffic to the external interface, using the
default route.
You can use Device #2 to send packets to an interface that is on a different subnet
than the destination IP address of the packets without routing them using the default
route.
Select OK to save the route.
Note: Any two routes in the routing table must differ by something other than just the gateway to
be simultaneously active. If two routes added to the routing table are identical except for their
gateway IP addresses, only the route closer to the top of the routing table can be active.
Note: Arrange routes in the routing table from more specific to more general. For information
Adding routes in Transparent mode
Use the following procedure to add routes when operating the FortiGate unit in
Transparent mode.
To add a route in Transparent mode
Go to System > Network > Routing.
Select New.
1
2
3
4
Enter the Destination IP address and Netmask for the route.
Enter the Gateway IP address for the route.
FortiGate-800 Installation and Configuration Guide
155
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring routing
Network configuration
5
6
Select OK to save the new route.
Repeat steps 1 to 5 to add more routes as required.
Configuring the routing table
The routing table shows the destination IP address and mask of each route that you
add, as well as the gateways and devices added to the route. The routing table also
displays the gateway connection status. A green check mark indicates that the
FortiGate unit has used the ping server and dead gateway detection to determine that
it can connect to the gateway. A red X means that a connection cannot be established.
A blue question mark means that the connection status is unknown. For more
The FortiGate unit assigns routes using a best match algorithm based on the
destination address of the packet and the destination address of the route. To select a
route for a packet, the FortiGate unit searches the routing table for a route that best
matches the destination address of the packet. If a match is not found, the FortiGate
unit routes the packet using the default route.
To configure the routing table
1
2
Go to System > Network > Routing Table.
Choose the route that you want to move and select Move to
the routing table.
to change its order in
3
4
Type a number in the Move to field to specify where in the routing table to move the
route and select OK.
Select Delete
to delete a route from the routing table.
Figure 33: Routing table
Policy routing
Policy routing extends the functions of destination routing. Using policy routing you
can route traffic based on the following:
•
•
•
•
Destination address
Source address
Protocol, service type, or port range
Incoming or source interface
156
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring DHCP services
Using policy routing you can build a routing policy database (RPDB) that selects the
appropriate route for traffic by applying a set of routing rules. To select a route for
traffic, the FortiGate unit matches the traffic with the policy routes added to the RPDB
starting at the top of the list. The first policy route that matches is used to set the route
for the traffic. The route supplies the next hop gateway as well as the FortiGate
interface to be used by the traffic.
Packets are matched with policy routes before they are matched with destination
routes. If a packet does not match a policy route, it is routed using destination routes.
The gateway added to a policy route must also be added to a destination route. When
the FortiGate unit matches packets with a route in the RPDB, the FortiGate unit looks
in the destination routing table for the gateway that was added to the policy route. If a
match is found, the FortiGate unit routes the packet using the matched destination
route. If a match is not found, the FortiGate unit routes the packet using normal
routing.
To find a route with a matching gateway, the FortiGate unit starts at the top of the
destination routing table and searches until it finds the first matching destination route.
This matched route is used to route the packet.
Policy routing command syntax
Configure policy routing using the following CLI command.
set system route policy <route_int> src <source_ip>
<source_mask> iifname <source-interface_name>
dst <destination_ip> <destination_mask>
oifname <destination-interface_name> protocol <protocol_int>
port <low-port_int> <high-port_int> gw <gateway_ip>
Complete policy routing command syntax is described in Volume 6: FortiGate CLI
Reference Guide.
Configuring DHCP services
You can configure DHCP server or DHCP relay agent functionality on any FortiGate
interface.
A FortiGate interface can act as either a DHCP server or as a DHCP relay agent. An
interface cannot provide both functions.
Note: To configure DHCP server or DHCP relay functionality on an interface, the FortiGate unit
must be in NAT/Route mode and the interface must have a static IP address.
This section describes the following:
•
•
FortiGate-800 Installation and Configuration Guide
157
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring DHCP services
Network configuration
Configuring a DHCP relay agent
In a DHCP relay configuration, the FortiGate unit forwards DHCP requests from
DHCP clients through the FortiGate unit to a DHCP server. The FortiGate unit also
returns responses from the DHCP server to the DHCP clients. The DHCP server must
have a route to the FortiGate unit that is configured as the DHCP relay so that the
packets sent by the DHCP server to the DHCP client arrive at the FortiGate
performing DHCP relay.
To configure an interface as a DHCP relay agent
Go to System > Network > DHCP.
Select Service.
1
2
3
4
5
6
Select the interface to be the DHCP relay agent.
Select DHCP Relay Agent.
Enter the DHCP Server IP address.
Select Apply.
Configuring a DHCP server
As a DHCP server, the FortiGate unit dynamically assigns IP addresses to hosts
located on connected subnets. You can configure a DHCP server for any FortiGate
interface. You can also configure a DHCP server for more than one FortiGate
interface. For each DHCP server configuration you can add multiple scopes (also
called address scopes) so that the DHCP server can assign IP addresses to
computers on multiple subnets.
Use these procedures to configure an interface as a DHCP server:
•
•
•
•
Adding a DHCP server to an interface
To add a DHCP server to an interface
Go to System > Network > DHCP.
Select Service.
1
2
3
4
5
Select an interface.
Select DHCP Server.
Select Apply.
Adding scopes to a DHCP server
If you have configured an interface as a DHCP server, the interface requires at least
one scope (also called an address scope). The scope designates the starting IP and
ending IP for the range of addresses that the FortiGate unit assigns to DHCP clients.
158
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network configuration
Configuring DHCP services
You can add multiple scopes to an interface so that the DHCP server added to that
interface can supply IP addresses to computers on multiple subnets.
Add multiple scopes if the DHCP server receives DHCP requests from subnets that
are not connected directly to the FortiGate unit. In this case, the DHCP requests are
sent to the FortiGate unit through DHCP relay. DHCP relay packets contain DHCP
relay IP, which is the IP address of the subnet from which the DHCP relay received the
request.
If the DHCP request received by the DHCP server is not forwarded by a DHCP relay,
the DHCP server decides which scope to use based on the IP address of the interface
that received the DHCP request; usually the scope with the same subnet as the
interface.
If the DHCP request received by the server is forwarded by a DHCP relay, the relay IP
is used to select the scope.
To add a scope to a DHCP server
Go to System > Network > DHCP.
Select Address Scope.
1
2
3
Select an interface.
You must configure the interface as a DHCP server before it can be selected.
4
5
Select New to add an address scope.
Configure the address scope.
Scope Name
IP Pool
Enter the address scope name.
Enter the starting IP and ending IP for the range of IP addresses that this
DHCP server assigns to DHCP clients.
Netmask
Enter the netmask that the DHCP server assigns to the DHCP clients.
Lease Duration Enter the interval, in days, hours and minutes, after which a DHCP client
must ask the DHCP server for a new address.
If you select Unlimited, DHCP leases never expire.
Domain
Optionally enter in the domain that the DHCP server assigns to the DHCP
clients.
Default Route
Enter the default route to be assigned to DHCP clients. The default route
must be on the same subnet as the IP pool.
6
7
Select Advanced if you want to configure Advanced Options.
DNS IP Enter the addresses of up to 3 DNS servers that the DHCP server assigns
to the DHCP clients.
WINS Server IP Add the IP addresses of one or two WINS servers to be assigned to DHCP
clients.
Exclusion Range Optionally enter up to 4 exclusion ranges of IP addresses within the IP pool
that cannot be assigned to DHCP clients.
Select OK.
FortiGate-800 Installation and Configuration Guide
159
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring DHCP services
Network configuration
Adding a reserve IP to a DHCP server
If you have configured an interface as a DHCP server, you can reserve an IP address
for a particular device on the network according to the MAC address of the device.
When you add the MAC address of a device and an IP address to the reserve IP list,
the DHCP server always assigns this IP address to the device.
To add a reserve IP you must first select the interface and scope to which you want to
add the reserve IP.
To add a reserve IP to a DHCP server
Go to System > Network > DHCP.
Select Reserve IP.
1
2
3
Select an interface.
You must configure the interface as a DHCP server before you can select it.
4
Select a scope.
You must configure an address scope for the interface before you can select it.
5
6
Select New to add a reserved IP.
Configure the reserved IP.
IP
Enter an IP address. The IP address must be within the IP pool added to the
selected scope.
MAC
Enter the MAC address of the device.
Name
Optionally, specify a name for the IP and MAC address pair.
Note: The reserved IP cannot be assigned to any other device. You can only add a given IP
address or MAC address once.
7
Select OK.
Viewing a DHCP server dynamic IP list
You can view the list of IP addresses that the DHCP server has assigned, their
corresponding MAC addresses, and the expiry time and date for these addresses.
To view a DHCP server dynamic IP list
Go to System > Network > DHCP.
Select Dynamic IP.
1
2
3
Select the interface for which you want to view the list.
160
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
RIP configuration
The FortiGate implementation of the Routing Information Protocol (RIP) supports both
RIP version 1 as defined by RFC 1058, and RIP version 2 as defined by RFC 2453.
RIP version 2 enables RIP messages to carry more information, and to support simple
authentication and subnet masks.
RIP is a distance-vector routing protocol intended for small, relatively homogeneous,
networks. RIP uses hop count as its routing metric. Each network is usually counted
as one hop. The network diameter is limited to 15 hops.
This chapter describes how to configure FortiGate RIP:
•
•
•
RIP settings
To configure RIP on the FortiGate unit
Go to System > RIP > Settings.
Select Enable RIP.
1
2
When you enable RIP, the Fortigate unit starts the RIP process. The FortiGate unit
does not send or receive RIP packets until you enable RIP on at least one interface.
3
4
Select Enable Advertise Default if you want RIP to always send the default route to
neighbors whether or not the default route is in the static routing table.
If you disable Advertise Default, RIP never sends the default route.
Change the following RIP default settings, as required.
RIP defaults are effective in most configurations. You should only have to change
these settings to troubleshoot problems with the RIP configuration.
FortiGate-800 Installation and Configuration Guide
161
Download from Www.Somanuals.com. All Manuals Search And Download.
RIP settings
RIP configuration
Default Metric RIP uses the default metric to advertise routes learned from other routing
protocols. Set Default Metric to a positive integer lower than 16 to advertise
that metric for all routes learned from other routing protocols. The default
setting for the Default Metric is 2.
Input Queue
Change the depth of the RIP input queue. The higher the number, the deeper
the input queue. Change the input queue depth to prevent loss of information
from the routing table when you have a FortiGate unit sending at high speed
to a router that cannot receive at high speed. The range is 0 to 1024. The
default input queue depth is 50. A queue size of 0 means there is no input
queue.
Output Delay
Add a delay in milliseconds between packets in a multiple-packet RIP
update. Add an output delay if you are configuring RIP on a FortiGate unit
that could be sending packets to a router that cannot receive the packets at
the rate the FortiGate unit is sending them. Output Delay can be from 8 to 50
milliseconds. The default output delay is 0 milliseconds.
5
Change the following RIP timer settings, as required.
RIP timer defaults are effective in most configurations. You should only have to
change these timers to troubleshoot network routing problems. All routers and access
servers in the network should have the same RIP timer settings.
Update
Invalid
The time interval in seconds between RIP updates. The default is 30
seconds.
The time interval in seconds after which a route is declared invalid. Invalid
should be at least three times the value of Update.
During the invalid interval, after the first update is missed and before the
invalid timer expires, the route is marked inaccessible and advertised as
unreachable; however, the route is still used for forwarding packets. The
invalid interval allows for the loss of one or more update packets before RIP
considers the route unusable. If RIP receives an update for a route, before
the invalid timer expires, it resets the invalid timer to 0. The default for Invalid
is 180 seconds.
Holddown
The time interval in seconds during which RIP ignores routing information for
a route. Holddown should be at least three times the value Update.
A route enters the holddown state when RIP receives an update packet
indicating that a route is unreachable or when the invalid timer for the route
expires. The holddown interval allows time for bad routing information to
clear the network during network convergence. The route is marked
inaccessible and advertised as unreachable and is no longer used for
forwarding packets. The default for Holddown is 180 seconds.
Flush
The time in seconds that must elapse after the last update for a route before
RIP removes the route from the routing table. Flush should be greater than
the value of Invalid to allow the route to go into the holddown state. The
default for Flush is 240 seconds.
6
Select Apply to save the changes.
162
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
RIP configuration
Configuring RIP for FortiGate interfaces
Figure 34: Configuring RIP settings
Configuring RIP for FortiGate interfaces
You can customize a RIP configuration for each FortiGate interface. This allows you to
customize RIP for the network to which each interface is connected.
To configure RIP for FortiGate interfaces
1
Go to System > RIP > Interface.
On this page you can view a summary of the RIP settings for each FortiGate interface.
2
3
Select Modify
for the interface for which to configure RIP settings.
Configure any of the following RIP settings:
RIP1 Send
Enables sending RIP version 1 broadcasts from this interface to the network
it is connected to. The routing broadcasts are UDP packets with a destination
port of 520.
RIP1 Receive
RIP2 Send
Enables listening on port 520 of an interface for RIP version 1 broadcasts.
Enables sending RIP version 2 broadcasts from this interface to the network
it is connected to. The routing broadcasts are UDP packets with a destination
port of 520.
RIP2 Receive
Split-Horizon
Enables listening on port 520 of an interface for RIP version 2 broadcasts.
Prevents RIP from sending updates for a route back out the interface from
which it received those routes. Split horizon is enabled by default. You should
only disable split horizon if there is no possibility of creating a counting to
infinity loop when network topology changes.
Authentication Enables authentication for RIP version 2 packets sent and received by an
interface. Because the original RIP standard does not support authentication,
authentication is only available for RIP version 2.
FortiGate-800 Installation and Configuration Guide
163
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring RIP for FortiGate interfaces
RIP configuration
Password
Mode
Enter the password to be used for RIP version 2 authentication. The
password can be up to 16 characters long.
Defines the authentication used for RIP version 2 packets sent and received
by this interface. If you select Clear, the password is sent as plain text. If you
select MD5, the password is used to generate an MD5 hash.
MD5 only guarantees the authenticity of the update packet, not the
confidentiality of the routing information in the packet.
Metric
Changes the metric for routes sent by this interface. All routes sent from this
interface have this metric added to their current metric value. You can
change the interface metric to give a higher priority to an interface. For
example, if you have two interfaces that can be used to route packets to the
same destination, and you set the metric of one interface higher than the
other, the routes to the interface with the lower metric will seem to have a
lower cost. More traffic will use routes to the interface with the lower metric.
Metric can be from 1 to 16 with 16 equalling unreachable.
4
Select OK to save the RIP configuration for the selected interface.
Figure 35: Example RIP configuration for an internal interface
164
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
RIP configuration
Adding RIP filters
Adding RIP filters
Use the Filter page to create RIP filter lists and assign RIP filter lists to the neighbors
filter, incoming route filter, or outgoing route filter. The neighbors filter allows or denies
updates from other routers. The incoming filter accepts or rejects routes in an
incoming RIP update packet. The outgoing filter allows or denies adding routes to
outgoing RIP update packets.
Each entry in a RIP filter list consists of a prefix (IP address and netmask), the action
RIP should take for this prefix (allow or deny), and the interface to which to apply this
RIP filter list entry. When RIP applies a filter while processing an update packet, it
starts at the top of the filter list and works down through the list looking for a matching
prefix. If RIP finds a matching prefix, it then checks that the interface in the filter list
entry matches the interface that the packet is received or sent on. If both prefix and
interface match, RIP takes the action specified. If no match is found, the default action
is allow.
•
•
•
For the neighbors filter, RIP attempts to match prefixes in the filter list against the
source address in the update packet.
For the incoming filter, RIP attempts to match prefixes in the filter list against
prefixes in the routing table entries in the update packet.
For the outgoing filter, RIP attempts to match prefixes in the filter list against
prefixes in the RIP routing table.
You can add up to four RIP filter lists to the FortiGate RIP configuration. You can then
select one RIP filter list for each RIP filter type: neighbors, incoming routes, outgoing
routes. If you do not select a RIP filter list for any of the RIP filter types, no filtering is
applied.
Note: To block all updates not specifically allowed in a filter list, create an entry at the bottom of
the filter list with a prefix with 0.0.0.0 for the IP address, 0.0.0.0 for the netmask, and action set
to deny. Because RIP uses the first match it finds in a top down search of the filter list, all the
allowed entries are matched first, and all other entries for the specified interface are matched by
the last entry and denied. Create a separate entry at the bottom of the filter list for each
interface for which you want to deny all updates not specifically allowed.
This section describes:
•
•
•
•
Adding a RIP filter list
Each entry in a RIP filter list consists of a prefix (IP address and netmask), the action
RIP should take for this prefix (allow or deny), and the interface to which to apply this
RIP filter list entry.
To add a RIP filter list
1
2
Go to System > RIP > Filter.
Select New to add a RIP filter.
FortiGate-800 Installation and Configuration Guide
165
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding RIP filters
RIP configuration
3
4
For Filter Name, type a name for the RIP filter list.
The name can be 15 characters long and can contain upper and lower case letters,
numbers, and special characters. The name cannot contain spaces.
Select the Blank Filter check box to create a RIP filter list with no entries, or enter the
information for the first entry on the RIP filter list.
5
6
7
8
Enter the IP address and Mask to create the prefix.
For Action, select allow or deny.
For Interface, enter the name of the interface to which to apply the entry.
Select OK to save the RIP filter list.
To add an entry to a RIP filter list
1
2
3
4
5
6
7
Go to System > RIP > Filter.
For the RIP filter list name, select Add Prefix to add an entry to the filter list.
Enter the IP address and Mask to create the prefix.
For Action, select allow or deny.
For Interface, enter the name of the interface to which to apply the entry.
Select OK to add the entry to the RIP filter list.
Assigning a RIP filter list to the neighbors filter
The neighbors filter allows or denies updates from other routers. You can assign a
single RIP filter list to the neighbors filter.
To assign a RIP filter list to the neighbors filter
1
2
3
Go to System > RIP > Filter.
Add RIP filter lists as required.
For Neighbors Filter, select the name of the RIP filter list to assign to the neighbors
filter.
4
Select Apply.
Assigning a RIP filter list to the incoming filter
The incoming filter accepts or rejects routes in an incoming RIP update packet. You
can assign a single RIP filter list to the incoming filter.
To assign a RIP filter list to the incoming filter
1
2
3
Go to System > RIP > Filter.
Add RIP filter lists as required.
For Incoming Routes Filter, select the name of the RIP filter list to assign to the
incoming filter.
4
Select Apply.
166
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
RIP configuration
Adding RIP filters
Assigning a RIP filter list to the outgoing filter
The outgoing filter allows or denies adding routes to outgoing RIP update packets.
You can assign a single RIP filter list to the outgoing filter.
To assign a RIP filter list to the outgoing filter
Go to System > RIP > Filter.
1
2
3
Add RIP filter lists as required.
For Outgoing Routes Filter, select the name of the RIP filter list to assign to the
outgoing filter.
4
Select Apply.
FortiGate-800 Installation and Configuration Guide
167
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding RIP filters
RIP configuration
168
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
System configuration
Use the System Config page to make any of the following changes to the FortiGate
system configuration:
•
•
•
•
•
Setting system date and time
For effective scheduling and logging, the FortiGate system time must be accurate.
You can either manually set the FortiGate system time or you can configure the
FortiGate unit to automatically keep its system time correct by synchronizing with a
Network Time Protocol (NTP) server.
To set the date and time
1
2
3
4
Go to System > Config > Time.
Select Refresh to display the current FortiGate system date and time.
Select your Time Zone from the list.
Select the Automatically adjust clock for daylight saving changes check box if you
want the FortiGate system clock to be adjusted automatically when your time zone
changes to daylight saving time.
5
6
Select Set Time and set the FortiGate system date and time to the correct date and
time, if required.
Select Synchronize with NTP Server to configure the FortiGate unit to use NTP to
automatically set the system time and date.
For more information about NTP and to find the IP address of an NTP server that you
can use, see http://www.ntp.org.
7
8
Enter the IP address or domain name of the NTP server that the FortiGate unit can
use to set its time and date.
Specify how often the FortiGate unit should synchronize its time with the NTP server.
A typical Syn Interval would be 1440 minutes for the FortiGate unit to synchronize its
time once a day.
FortiGate-800 Installation and Configuration Guide
169
Download from Www.Somanuals.com. All Manuals Search And Download.
Changing system options
System configuration
9
Select Apply.
Figure 36: Example date and time setting
Changing system options
On the System Config Options page, you can:
•
•
•
•
Set the system idle timeout.
Set the authentication timeout.
Select the language for the web-base manager.
Modify the dead gateway detection settings.
You can also restrict access to the control buttons and LCD by requiring a PIN
(Personal Identification Number).
To set the system idle timeout
1
2
3
Go to System > Config > Options.
For Idle Timeout, type a number in minutes.
Select Apply.
Idle Timeout controls the amount of inactive time that the web-based manager waits
before requiring the administrator to log in again.
The default idle time out is 5 minutes. The maximum idle time out is 480 minutes
(8 hours).
To set the Auth timeout
1
2
Go to System > Config > Options.
For Auth Timeout, type a number in minutes.
170
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Changing system options
3
Select Apply.
Auth Timeout controls the amount of inactive time that the firewall waits before
requiring users to authenticate again. For more information, see “Users and
The default Auth Timeout is 15 minutes. The maximum Auth Timeout is 480 minutes
(8 hours).
To select a language for the web-based manager
1
2
3
Go to System > Config > Options.
From the Languages list, select a language for the web-based manager to use.
Select Apply.
You can choose English, Simplified Chinese, Japanese, Korean, or Traditional
Chinese.
Note: When the web-based manager language is set to use Simplified Chinese, Japanese,
Korean, or Traditional Chinese, you can change to English by selecting the English button on
the upper right of the web-based manager.
To set PIN protection for the LCD panel
1
2
3
Go to System > Config > Options.
In the LCD Panel section, select the PIN Protection check box.
Type a 6-digit PIN.
Administrators must enter the PIN to use the control buttons and LCD.
4
Select Apply.
Modifying the Dead Gateway Detection settings
Modify dead gateway detection to control how the FortiGate unit confirms connectivity
with a ping server added to an interface configuration. For information about adding a
To modify the dead gateway detection settings
1
2
Go to System > Config > Options.
For Detection Interval, type a number in seconds to specify how often the FortiGate
unit tests the connection to the ping target.
3
4
For Fail-over Detection, type a number of times that the connection test fails before
the FortiGate unit assumes that the gateway is no longer functioning.
Select Apply.
FortiGate-800 Installation and Configuration Guide
171
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding and editing administrator accounts
System configuration
Adding and editing administrator accounts
When the FortiGate unit is initially installed, it is configured with a single administrator
account with the user name admin. From this administrator account, you can add and
edit administrator accounts. You can also control the access level of each of these
administrator accounts and control the IP address from which the administrator can
connect to the FortiGate unit.
There are three administration account access levels:
admin
Has all permissions. Can view, add, edit, and delete administrator accounts.
Can view and change the FortiGate configuration. The admin user is the only
user who can go to the System Status page and manually update firmware,
update the antivirus definitions, update the attack definitions, download or
upload system settings, restore the FortiGate unit to factory defaults, restart
the FortiGate unit, and shut down the FortiGate unit. There is only one admin
user.
Read & Write Can view and change the FortiGate configuration. Can view but cannot add,
edit, or delete administrator accounts. Can change own administrator account
password. Cannot make changes to system settings from the System Status
page.
Read Only
Can view the FortiGate configuration.
Adding new administrator accounts
From the admin account, use the following procedure to add new administrator
accounts and control their permission levels.
To add an administrator account
1
2
3
Go to System > Config > Admin.
Select New to add an administrator account.
Type a login name for the administrator account.
The login name can contain numbers (0-9), uppercase and lowercase letters
(A-Z, a-z), and the special characters - and _. Other special characters and spaces
are not allowed.
4
5
Type and confirm a password for the administrator account.
For improved security, the password should be at least 6 characters long. The
password can contain any characters except spaces.
Optionally type a Trusted Host IP address and netmask for the location from which the
administrator can log into the web-based manager.
If you want the administrator to be able to access the FortiGate unit from any address,
set the trusted host to 0.0.0.0 and the netmask to 0.0.0.0.
To limit the administrator to only access the FortiGate unit from a specific network, set
the trusted host to the address of the network and set the netmask to the netmask for
the network. For example, to limit an administrator to accessing the FortiGate unit
from your internal network, set the trusted host to the address of your internal network
(for example, 192.168.1.0) and set the netmask to 255.255.255.0.
6
7
Set the Permission level for the administrator.
Select OK to add the administrator account.
172
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Configuring SNMP
Editing administrator accounts
The admin account user can change individual administrator account passwords,
configure the IP addresses from which administrators can access the web-based
manager, and change the administrator permission levels.
Administrator account users with Read & Write access can change their own
administrator passwords.
To edit an administrator account
1
2
3
4
Go to System > Config > Admin.
To change an administrator account password, select Change Password
Type the Old Password.
.
Type and confirm a new password.
For improved security, the password should be at least 6 characters long. The
password can contain any characters except spaces. If you enter a password that is
less than 6 characters long, the system displays a warning message but still accepts
the password.
5
6
7
Select OK.
To edit the settings of an administrator account, select Edit
.
Optionally type a Trusted Host IP address and netmask for the location from which the
administrator can log into the web-based manager.
If you want the administrator to be able to access the FortiGate unit from any address,
set the trusted host to 0.0.0.0 and the netmask to 255.255.255.255.
To limit the administrator to only be able to access the FortiGate unit from a specific
network, set the trusted host to the address of the network and set the netmask to the
netmask for the network. For example, to limit an administrator to accessing the
FortiGate unit from your internal network, set the trusted host to the address of your
internal network (for example, 192.168.1.0) and set the netmask to 255.255.255.0.
8
9
Change the administrator’s permission level as required.
Select OK.
10
To delete an administrator account, choose the account to delete and select
Delete
.
Configuring SNMP
You can configure the FortiGate SNMP agent to report system information and send
traps to SNMP managers. Using an SNMP manager, you can access SNMP traps and
data from any FortiGate interface or VLAN subinterface configured for SNMP
management access.
The FortiGate SNMP implementation is read-only. SNMP v1 and v2c compliant SNMP
managers have read-only access to FortiGate system information and can receive
FortiGate traps. To monitor FortiGate system information and receive FortiGate traps
you must compile Fortinet proprietary MIBs as well as Fortinet-supported standard
MIBs into your SNMP manager.
FortiGate-800 Installation and Configuration Guide
173
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring SNMP
System configuration
RFC support includes support for most of RFC 2665 (Ethernet-like MIB) and most of
This section describes:
•
•
•
•
•
Configuring the FortiGate unit for SNMP monitoring
Before a remote SNMP manager can connect to the FortiGate agent, you must
configure one or more FortiGate interfaces to accept SNMP connections. See
Configuring FortiGate SNMP support
Use the information in this section to configure the FortiGate unit so that an SNMP
manager can connect to the FortiGate SNMP agent to receive management
information and traps.
•
•
Configuring SNMP access to an interface
Before a remote SNMP manager can connect to the FortiGate agent, you must
configure one or more FortiGate interface‘s to accept SNMP connections. The
configuration steps to follow depend on whether the FortiGate unit is operating in
NAT/Route mode or Transparent mode.
To configure SNMP access to an interface in NAT/Route mode
Go to System > Network > Interface.
1
2
3
4
Choose the interface that the SNMP manager connects to and select Modify
For Administrative Access select SNMP.
.
Select OK.
To configure SNMP access to an interface in Transparent mode
Go to System > Network > Management.
1
2
Choose the interface that the SNMP manager connects to and select SNMP.
Select Apply.
Configuring SNMP community settings
You can configure a single SNMP community for each FortiGate device. An SNMP
community consists of identifying information about the FortiGate unit, your SNMP get
community and trap community strings, and the IP addresses of up to three SNMP
managers that can receive traps sent by the FortiGate SNMP agent.
174
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Configuring SNMP
To configure SNMP community settings
Go to System > Config > SNMP v1/v2c.
Select the Enable SNMP check box.
Configure the following SNMP settings:
1
2
3
System Name
Automatically set to the FortiGate host name. To change the System
System Location
Describe the physical location of the FortiGate unit. The system location
description can be up to 31 characters long and can contain spaces,
numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and the
special characters - and _. The \ < > [ ] ` $ % & characters are not
allowed.
Contact Information Add the contact information for the person responsible for this FortiGate
unit. The contact information can be up to 31 characters long and can
contain spaces, numbers (0-9), uppercase and lowercase letters (A-Z,
a-z), and the special characters - and _. The \ < > [ ] ` $ % & characters
are not allowed.
Get Community
Also called read community, get community is a password to identify
SNMP get requests sent to the FortiGate unit. When an SNMP manager
sends a get request to the FortiGate unit, it must include the correct get
community string.
The default get community string is “public”. Change the default get
community string to keep intruders from using get requests to retrieve
information about your network configuration. The get community string
must be used in your SNMP manager to enable it to access FortiGate
SNMP information.
The get community string can be up to 31 characters long and can
contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Spaces and the \ < > [ ] ` $ % &
characters are not allowed.
Trap Community
The trap community string functions like a password that is sent with
SNMP traps.
The default trap community string is “public”. Change the trap
community string to the one accepted by your trap receivers.
The trap community string can be up to 31 characters long and can
contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Spaces and the \ < > [ ] ` $ % &
characters are not allowed.
Trap Receiver IP
Addresses
Type the IP addresses of up to three trap receivers on your network that
are configured to receive traps from your FortiGate unit. Traps are only
sent to the configured addresses.
4
Select Apply.
FortiGate-800 Installation and Configuration Guide
175
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring SNMP
System configuration
Figure 37: Sample SNMP configuration
FortiGate MIBs
The FortiGate SNMP agent supports FortiGate proprietary MIBs as well as standard
RFC 1213 and RFC 2665 MIBs. The FortiGate MIBs are listed in Table 20. You can
obtain these MIB files from Fortinet technical support. To be able to communicate with
the SNMP agent, you must compile all of these MIBs into your SNMP manager.
Your SNMP manager might already include standard and private MIBs in a compiled
database that is ready to use. You must add the Fortinet proprietary MIBs to this
database. If the standard MIBs used by the Fortinet SNMP agent are already
compiled into your SNMP manager you do not have to compile them again.
Table 20: FortiGate MIBs
MIB file name or
RFC
Description
fortinet-trap.mib
The Fortinet trap MIB is a proprietary MIB that is required for your SNMP
manager to receive traps from the FortiGate SNMP agent. For more
fortinet.mib
The Fortinet MIB is a proprietary MIB that includes detailed FortiGate
system configuration information. Add this MIB to your SNMP manager
to monitor all FortiGate configuration settings.
RFC-1213 (MIB II) The FortiGate SNMP agent supports MIB II groups with the following
exceptions.
No support for the EGP group from MIB II (RFC 1213, section 3.11 and
6.10).
Protocol statistics returned for MIB II groups (IP/ICMP/TCP/UDP/etc.) do
not accurately capture all FortiGate traffic activity. More accurate infor-
mation can be obtained from the information reported by the Fortinet
MIB.
RFC-2665
(Ethernet-like
MIB)
The FortiGate SNMP agent supports Ethernet-like MIB information with
the following exception.
No support for the dot3Tests and dot3Errors groups.
176
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Configuring SNMP
FortiGate traps
The FortiGate agent can send traps to up to three SNMP trap receivers on your
network that are configured to receive traps from the FortiGate unit. For these SNMP
managers to receive traps, you must load and compile the Fortinet trap MIB onto the
SNMP manager.
General FortiGate traps
Table 21: General FortiGate traps
Trap message
Description
Cold Start
The FortiGate unit starts or restarts. An administrator enables the
SNMP agent or changes FortiGate SNMP settings. This trap is sent
when the agent starts during system startup.
System Down
Agent Down
Agent Up
The SNMP agent stops because the FortiGate unit shuts down.
An administrator disables the SNMP agent.
An administrator enables the SNMP agent. This trap is also sent
when the agent starts during system startup.
The <interface_name> The IP address of an interface of a FortiGate unit changes. The trap
Interface IP is changed message includes the name of the interface, the new IP address of
to <new_IP> (Serial
No.:
the interface, and the serial number of the FortiGate unit. This trap
can be used to track interface IP address changes for interfaces
<FortiGate_serial_no>) configured with dynamic IP addresses set using DHCP or PPPoE.
System traps
Table 22: FortiGate system traps
Trap message
Description
interface
<interface_name> is
up.
An interface changes from the up state to the running state, indicating
that the interface has been connected to a network.
When the interface is up it is administratively up but not connected to
a network. When the interface is running it is administratively up and
connected to a network.
interface
<interface_name> is
down.
An interface changes from the running state to the up state, indicating
that the interface has been disconnected from a network.
CPU usage high
memory low
disk low
CPU usage exceeds 90%.
Memory usage exceeds 90%.
On a FortiGate unit with a hard drive, hard drive usage exceeds 90%.
<FortiGate_serial_no> The configuration of an interface of a FortiGate unit changes. The trap
<interface_name>
HA switch
message includes the name of the interface and the serial number of
the FortiGate unit.
The primary unit in an HA cluster fails and is replaced with a new pri-
mary unit.
FortiGate-800 Installation and Configuration Guide
177
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring SNMP
System configuration
VPN traps
Table 23: FortiGate VPN traps
Trap message
Description
VPN tunnel is up
An IPSec VPN tunnel starts up and begins processing network traf-
fic.
VPN tunnel down
An IPSec VPN tunnel shuts down.
NIDS traps
Table 24: FortiGate NIDS traps
Trap message
Description
Flood attack happened.
NIDS attack prevention detects and provides protection from a
syn flood attack.
Port scan attack hap-
pened.
NIDS attack prevention detects and provides protection from a
port scan attack.
Antivirus traps
Table 25: FortiGate antivirus traps
Trap message Description
virus detected
The FortiGate unit detects a virus and removes the infected file from an
HTTP or FTP download or from an email message.
Logging traps
Table 26: FortiGate logging traps
Trap message Description
log full
On a FortiGate unit with a hard drive, hard drive usage exceeds 90%. On a
FortiGate unit without a hard drive, log to memory usage has exceeds 90%.
178
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Configuring SNMP
Fortinet MIB fields
The Fortinet MIB contains fields for configuration settings and current status
information for all parts of the FortiGate product. This section lists the names of the
high-level MIB fields and describes the configuration and status information available
for each one. You can view more details about the information available from all
Fortinet MIB fields by compiling the fortinet.mib file into your SNMP manager and
browsing the Fortinet MIB fields.
System configuration and status
Table 27: System MIB fields
MIB field
Description
fnSysStatus
FortiGate system configuration including operation mode, firmware version,
virus definition version, attack definition version, and serial number. Status
monitor information including current CPU usage, CPU idle status, CPU
interrupts, memory usage, system up time, the number of active communi-
cation sessions, as well as descriptive information for each active communi-
cation session.
fnSysUpdate
FortiGate system update configuration including connection status to the
FDN, push update status, periodic update status, and current virus and
attack definitions versions.
fnSysNetwork FortiGate system network configuration including the interface, VLAN, rout-
ing, DHCP, zone, and DNS configuration.
fnSysConfig
fnSysSnmp
FortiGate system configuration including time, options, administrative users,
and HA configuration.
FortiGate SNMP configuration.
Firewall configuration
Table 28: Firewall MIB fields
MIB field
Description
fnFirewallPolicy
FortiGate firewall policy list including complete configuration
information for each policy.
fnFirewallAddress
fnFirewallService
fnFirewallSchedule
fnFirewallVirtualIP
fnFirewallIpPool
FortiGate firewall address and address group list.
FortiGate firewall service and service group list.
FortiGate firewall schedule list.
FortiGate firewall virtual IP list.
FortiGate firewall IP pool list.
fnFirewallIPMACBinding FortiGate firewall IP/MAC binding configuration.
fnFirewallContProfiles FortiGate firewall content profile list.
FortiGate-800 Installation and Configuration Guide
179
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring SNMP
System configuration
Users and authentication configuration
Table 29: User and authentication MIB fields
FnUserLocalTable
FnUserRadiusSrvTable RADIUS server list.
FnUserGrpTable User group list.
Local user list.
VPN configuration and status
Table 30: VPN MIB fields
fnVpnIpsec
IPSec VPN configuration including the Phase 1 list, Phase 2 list, manual key
list, and VPN concentrator list. Status and timeout for each VPN tunnel
(Phase 2) and the dialup monitor list showing dialup tunnel status.
fnVpnPPTP
fnVpnL2TP
fnVpnCert
PPTP VPN configuration.
L2TP VPN configuration.
IPSec VPN with certificates configuration.
NIDS configuration
Table 31: NIDS MIB fields
fnNidsDetection NIDS detection configuration.
fnNidsPrevention NIDS prevention configuration.
fnNidsResponse NIDS response configuration.
Antivirus configuration
Table 32: Antivirus MIB fields
fnAvFileBlock
Antivirus file blocking configuration.
fnAvQuarantine Antivirus quarantine configuration.
fnAVConfig
Antivirus configuration including the current virus definition virus list.
Web filter configuration
Table 33: Web filter MIB fields
fnWebFiltercfgMsgTable Web filter content block list and configuration.
fnWebFilterUrlBlk
fnWebFilterScripts
fnWebFilterExemptUrl
Web filter URL block list.
Web filter script blocking configuration.
Web filter exempt URL list.
180
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Replacement messages
Logging and reporting configuration
Table 34: Logging and reporting MIB fields
fnLoglogSetting
fnLoglog
Log setting configuration.
Log setting traffic filter configuration.
Alert email configuration.
fnLogAlertEmail
Replacement messages
Replacement messages are added to content passing through the firewall to replace:
•
•
•
Files or other content removed from POP3 and IMAP email messages by the
antivirus system,
Files or other content removed from HTTP downloads by the antivirus system or
web filtering,
Files removed from FTP downloads by the antivirus system.
You can edit the content of replacement messages.
You can also edit the content added to alert email messages to control the information
that appears in alert emails for virus incidents, NIDS events, critical system events,
and disk full events.
This section describes:
•
•
Figure 38: Sample replacement message
FortiGate-800 Installation and Configuration Guide
181
Download from Www.Somanuals.com. All Manuals Search And Download.
Replacement messages
System configuration
Customizing replacement messages
Each of the replacement messages in the replacement message list is created by
combining replacement message sections. You can use these sections as building
blocks to create your own replacement messages.
You can edit any of the replacement messages in the replacement message list and
add and edit the replacement message sections as required.
To customize a replacement message
1
2
3
Go to System > Config > Replacement Messages.
For the replacement message that you want to customize, select Modify
.
In the Message setup dialog box, edit the content of the message.
Table 35 lists the replacement message sections that can be added to replacement
messages and describes the tags that can appear in each section. In addition to the
allowed tags you can add text. For mail and HTTP messages you can also add HTML
code.
4
Select OK to save the changes.
Table 35: Replacement message sections
File blocking
Section Start
Allowed Tags
Used for file blocking (all services).
<**BLOCKED**>
%%FILE%%
The name of the file that was blocked.
The URL of the blocked web page.
%%URL%%
Section End
<**/BLOCKED**>
Scanning
Used for virus scanning (all services).
<**INFECTED**>
Section Start
Allowed Tags
%%FILE%%
The name of the file that was infected.
%%VIRUS%% The name of the virus infecting the file.
%%URL%%
The URL of the blocked web page or file.
Section End
Quarantine
<**/INFECTED**>
Used when quarantine is enabled (permitted for all scan services and block
services for email only).
Section Start
Allowed Tag
<**QUARANTINE**>
%%QUARFILE The name of the file that was quarantined.
NAME%%
Section End
<**/QUARANTINE**>
182
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
System configuration
Replacement messages
Customizing alert emails
Customize alert emails to control the content displayed in alert email messages sent
to system administrators.
To customize alert emails
1
2
3
Go to System > Config > Replacement Messages.
For the alert email message that you want to customize, select Modify
.
In the Message setup dialog box, edit the text of the message.
messages and describes the tags that can appear in each section. In addition to the
allowed tags you can add text and HTML code.
4
Select OK to save the changes.
Table 36: Alert email message sections
Used for NIDS event alert email messages
<**NIDS_EVENT**>
NIDS event
Section Start
Allowed Tags
Section End
%%NIDS_EVENT%% The NIDS attack message.
<**/NIDS_EVENT**>
Used for virus alert email messages
<**VIRUS_ALERT**>
Virus alert
Section Start
Allowed Tags
%%VIRUS%%
The name of the virus.
%%PROTOCOL%%
%%SOURCE_IP%%
The service for which the virus was detected.
The IP address from which the virus was received.
For email this is the IP address of the email server
that sent the email containing the virus. For HTTP
this is the IP address of web page that sent the
virus.
%%DEST_IP%%
The IP address of the computer that would have
received the virus. For POP3 this is the IP address
of the user’s computer that attempted to download
the email containing the virus.
%%EMAIL_FROM%% The email address of the sender of the message in
which the virus was found.
%%EMAIL_TO%%
The email address of the intended receiver of the
message in which the virus was found.
Section End
<**/VIRUS_ALERT**>
Used for file block alert email messages
<**BLOCK_ALERT**>
Block alert
Section Start
Allowed Tags
%%FILE%%
The name of the file that was blocked.
The service for which the file was blocked.
%%PROTOCOL%%
FortiGate-800 Installation and Configuration Guide
183
Download from Www.Somanuals.com. All Manuals Search And Download.
Replacement messages
System configuration
Table 36: Alert email message sections
%%SOURCE_IP%%
The IP address from which the block file was
received. For email this is the IP address of the
email server that sent the email containing the
blocked file. For HTTP this is the IP address of
web page that sent the blocked file.
%%DEST_IP%%
The IP address of the computer that would have
received the blocked file. For email this is the IP
address of the user’s computer that attempted to
download the message from which the file ware
removed.
%%EMAIL_FROM%% The email address of the sender of the message
from which the file was removed.
%%EMAIL_TO%%
The email address of the intended receiver of the
message from which the file was removed.
Section End
<**/BLOCK_ALERT**>
Used for critical firewall event alert emails.
<**CRITICAL_EVENT**>
Critical event
Section Start
Allowed Tags
%%CRITICAL_EVENT The firewall critical event message
%%
Section End
<**/CRITICAL_EVENT**>
184
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Firewall configuration
Firewall policies control all traffic passing through the FortiGate unit. Firewall policies
are instructions that the FortiGate unit uses to decide what to do with a connection
request. When the firewall receives a connection request in the form of a packet, it
analyzes the packet to extract its source address, destination address, and service
(port number).
For the packet to be connected through the FortiGate unit, a firewall policy must be in
place that matches the source address, destination address, and service of the
packet. The policy directs the firewall action on the packet. The action can be to allow
the connection, deny the connection, require authentication before the connection is
allowed, or process the packet as an IPSec VPN packet. You can also add schedules
to policies so that the firewall can process connections differently depending on the
time of day or the day of the week, month, or year.
Each policy can be individually configured to route connections or apply network
address translation (NAT) to translate source and destination IP addresses and ports.
You can add IP pools to use dynamic NAT when the firewall translates source
addresses. You can use policies to configure port address translation (PAT) through
the FortiGate.
You can add content profiles to policies to apply antivirus protection, web filtering, and
email filtering to web, file transfer, and email services. You can create content profiles
that perform one or any combination of the following actions:
•
•
•
•
Apply antivirus protection to HTTP, FTP, SMTP, IMAP, or POP3 services.
Quarantine files that are infected or that might be infected by a virus.
Apply web filtering to HTTP services.
Apply email filtering to IMAP and POP3 services.
You can also add logging to a firewall policy so that the FortiGate unit logs all
connections that use this policy.
FortiGate-800 Installation and Configuration Guide
185
Download from Www.Somanuals.com. All Manuals Search And Download.
Default firewall configuration
Firewall configuration
This chapter describes:
•
•
•
•
•
•
•
•
•
•
Default firewall configuration
By default, the users on your internal network can connect through the FortiGate unit
to the Internet. The firewall blocks all other connections. The firewall is configured with
a default policy that matches any connection request received from the internal
network and instructs the firewall to forward the connection to the Internet.
The default policy also applies virus scanning to all HTTP, FTP, SMTP, POP3, and
IMAP traffic matched by the policy. The policy applies virus scanning because the
Antivirus & Web Filter option is selected and the Content profile is set to Scan. For
Figure 39: Default firewall policy
•
•
•
•
•
•
•
186
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Default firewall configuration
Interfaces
Add policies to control connections between FortiGate interfaces and between the
networks connected to these interfaces. By default, you can add policies for
connections that include the internal, external, and DMZ interfaces.
To add policies that include the port1 to port4 interfaces, you must use the following
steps to add these interfaces to the firewall policy grid:
1
2
3
If they are down, start the interfaces up.
Add IP addresses to the interfaces.
Add firewall addresses for these interfaces.
VLAN subinterfaces
You can also add VLAN subinterfaces to the FortiGate configuration to control
connections between VLANs. For more information about VLANs, see “VLANs in
To add policies that include VLAN subinterfaces, you must use the following steps to
add the VLAN subinterfaces to the firewall policy grid:
1
2
Add VLAN subinterfaces to the FortiGate configuration.
Add firewall addresses for the VLAN subinterface.
Zones
You can add zones to the FortiGate configuration to group together related interfaces
and VLAN subinterfaces to simplify firewall policy creation. For more information
To add policies for zones, you must use the following steps to add the zones to the
firewall policy grid:
1
2
3
Add zones to the FortiGate configuration.
Add interfaces and VLAN subinterfaces to the zone.
Add firewall addresses for the zone.
FortiGate-800 Installation and Configuration Guide
187
Download from Www.Somanuals.com. All Manuals Search And Download.
Default firewall configuration
Firewall configuration
Addresses
To add policies between interfaces, VLAN subinterfaces, and zones, the firewall
configuration must contain addresses for each interface, VLAN subinterface, or zone.
By default the firewall configuration includes the addresses listed in Table 37.
Table 37: Default addresses
Interface Address
Description
Internal
External
DMZ
Internal_All This address matches all addresses on the internal network.
External_All This address matches all addresses on the external network.
DMZ_All
This address matches all addresses on the DMZ network.
The firewall uses these addresses to match the source and destination addresses of
packets received by the firewall. The default policy matches all connections from the
internal network because it includes the Internal_All address. The default policy also
matches all connections to the Internet because it includes the External_All address.
You can add more addresses to each interface to improve the control you have over
connections through the firewall. For more information about addresses, see
You can also add firewall policies that perform network address translation (NAT). To
use NAT to translate destination addresses, you must add virtual IPs. Virtual IPs map
addresses on one network to a translated address on another network. For more
Services
Policies can control connections based on the service or destination port number of
packets. The default policy accepts connections using any service or destination port
number. The firewall is configured with over 40 predefined services. You can add
these services to a policy for more control over the services that can be used by
connections through the firewall. You can also add user-defined services. For more
Schedules
Policies can control connections based on the time of day or day of the week when the
firewall receives the connection. The default policy accepts connections at any time.
The firewall is configured with one schedule that accepts connections at any time. You
can add more schedules to control when policies are active. For more information
188
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Adding firewall policies
Content profiles
Add content profiles to policies to apply antivirus protection, web filtering, and email
filtering to web, file transfer, and email services. The FortiGate unit includes the
following default content profiles:
•
•
•
•
Strict—to apply maximum content protection to HTTP, FTP, IMAP, POP3, and
SMTP content traffic.
Scan—to apply antivirus scanning to HTTP, FTP, IMAP, POP3, and SMTP content
traffic.
Web—to apply antivirus scanning and Web content blocking to HTTP content
traffic.
Unfiltered—to allow oversized files to pass through the FortiGate unit without
scanned for viruses.
The default policy includes the scan content profile.
Adding firewall policies
Add Firewall policies to control connections and traffic between FortiGate interfaces,
zones, and VLAN subinterfaces.
To add a firewall policy
1
2
3
Go to Firewall > Policy.
Select the policy list to which you want to add the policy.
Select New to add a new policy.
You can also select Insert Policy before
policy above a specific policy.
on a policy in the list to add the new
4
Configure the policy:
5
6
Select OK to add the policy.
Arrange policies in the policy list so that they have the results that you expect.
For information about arranging policies in a policy list, see “Configuring policy lists”
FortiGate-800 Installation and Configuration Guide
189
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding firewall policies
Firewall configuration
Figure 40: Adding a NAT/Route policy
Firewall policy options
This section describes the options that you can add to firewall policies.
Source
Select an address or address group that matches the source address of the packet.
Before you can add this address to a policy, you must add it to the source interface.
190
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Adding firewall policies
Destination
Select an address or address group that matches the destination address of the
packet. Before you can add this address to a policy, you must add it to the destination
interface, VLAN subinterface, or zone. For information about adding an address, see
For NAT/Route mode policies where the address on the destination network is hidden
from the source network using NAT, the destination can also be a virtual IP that maps
the destination address of the packet to a hidden destination address. See “Virtual
Schedule
Select a schedule that controls when the policy is available to be matched with
Service
Select a service that matches the service (port number) of the packet. You can select
from a wide range of predefined services or add custom services and service groups.
Action
Select how you want the firewall to respond when the policy matches a connection
attempt.
ACCEPT
DENY
Accept the connection. If you select ACCEPT, you can also configure NAT
and Authentication for the policy.
Deny the connection. The only other policy option that you can configure is
Log Traffic, to log the connections denied by this policy.
ENCRYPT
Make this policy an IPSec VPN policy. If you select ENCRYPT, you can
select an AutoIKE Key or Manual Key VPN tunnel for the policy and
configure other IPSec settings. You cannot add authentication to an
ENCRYPT policy. ENCRYPT is not available in Transparent mode. See
FortiGate-800 Installation and Configuration Guide
191
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding firewall policies
Firewall configuration
NAT
Configure the policy for NAT. NAT translates the source address and the source port
of packets accepted by the policy. If you select NAT, you can also select Dynamic IP
Pool and Fixed Port. NAT is not available in Transparent mode.
Dynamic IP
Pool
Select Dynamic IP Pool to translate the source address to an address
randomly selected from an IP pool. The IP pool must be added to the
destination interface or VLAN subinterface of the policy or to an interface or
VLAN subinterface in the destination zone of the policy.
You cannot select Dynamic IP Pool if the destination interface or VLAN
subinterface is configured using DHCP or PPPoE.
Fixed Port
Select Fixed Port to prevent NAT from translating the source port. Some
applications do not function correctly if the source port is changed. If you
select Fixed Port, you must also select Dynamic IP Pool and add a dynamic
IP pool address range to the destination interface of the policy. If you do not
select Dynamic IP Pool, a policy with Fixed Port selected can only allow one
connection at a time for this port or service.
VPN Tunnel
Select a VPN tunnel for an ENCRYPT policy. You can select an AutoIKE key or
Manual Key tunnel. VPN Tunnel is not available in Transparent mode.
Allow inbound Select Allow inbound so that users behind the remote VPN gateway can
connect to the source address.
Allow outbound Select Allow outbound so that users can connect to the destination address
behind the remote VPN gateway.
Inbound NAT
Select Inbound NAT to translate the source address of incoming packets to
the FortiGate internal IP address.
Outbound NAT Select Outbound NAT to translate the source address of outgoing packets to
the FortiGate external IP address.
Traffic Shaping
Traffic Shaping controls the bandwidth available to and sets the priority of the traffic
processed by the policy. Traffic Shaping makes it possible to control which policies
have the highest priority when large amounts of data are moving through the
FortiGate device. For example, the policy for the corporate web server might be given
higher priority than the policies for most employees’ computers. An employee who
needs unusually high-speed Internet access could have a special outgoing policy set
up with higher bandwidth.
If you set both guaranteed bandwidth and maximum bandwidth to 0 the policy does
not allow any traffic.
Guaranteed
Bandwidth
You can use traffic shaping to guarantee the amount of bandwidth available
through the firewall for a policy. Guarantee bandwidth (in Kbytes) to make
sure that there is enough bandwidth available for a high-priority service.
192
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Adding firewall policies
Maximum
Bandwidth
You can also use traffic shaping to limit the amount of bandwidth available
through the firewall for a policy. Limit bandwidth to keep less important
services from using bandwidth needed for more important services.
Traffic Priority Select High, Medium, or Low. Select Traffic Priority so that the FortiGate unit
manages the relative priorities of different types of traffic. For example, a
policy for connecting to a secure web server needed to support e-commerce
traffic should be assigned a high traffic priority. Less important services
should be assigned a low priority. The firewall provides bandwidth to low-
priority connections only when bandwidth is not needed for high-priority
connections.
Authentication
Select Authentication and select a user group to require users to enter a user name
and password before the firewall accepts the connection. Select the user group to
control the users that can authenticate with this policy. For information about adding
add user groups before you can select Authentication.
You can select Authentication for any service. Users can authenticate with the firewall
using HTTP, Telnet, or FTP. For users to be able to authenticate you must add an
HTTP, Telnet, or FTP policy that is configured for authentication. When users attempt
to connect through the firewall using this policy they are prompted to enter a firewall
username and password.
If you want users to authenticate to use other services (for example POP3 or IMAP)
you can create a service group that includes the services for which you want to
require authentication, as well as HTTP, Telnet, and FTP. Then users could
authenticate with the policy using HTTP, Telnet, or FTP before using the other service.
In most cases you should make sure that users can use DNS through the firewall
without authentication. If DNS is not available users cannot connect to a web, FTP, or
Telnet server using a domain name.
Anti-Virus & Web filter
Enable antivirus protection and web filter content filtering for traffic controlled by this
policy. You can select Anti-Virus & Web filter if Service is set to ANY, HTTP, SMTP,
POP3, IMAP, or FTP or to a service group that includes the HTTP, SMTP, POP3,
IMAP, or FTP services.
Select a content profile to configure how antivirus protection and content filtering is
applied to the policy. For information about selecting a content profile, see “Content
FortiGate-800 Installation and Configuration Guide
193
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding firewall policies
Firewall configuration
Figure 41: Adding a Transparent mode policy
Log Traffic
Select Log Traffic to write messages to the traffic log whenever the policy processes a
Comments
You can add a description or other information about the policy. The comment can be
up to 63 characters long, including spaces.
194
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Configuring policy lists
Configuring policy lists
The firewall matches policies by searching for a match starting at the top of the policy
list and moving down until it finds the first match. You must arrange policies in the
policy list from more specific to more general.
For example, the default policy is a very general policy because it matches all
connection attempts. When you create exceptions to that policy, you must add them to
the policy list above the default policy. No policy below the default policy will ever be
matched.
This section describes:
•
•
•
Policy matching in detail
When the FortiGate unit receives a connection attempt at an interface, it must select a
policy list to search through for a policy that matches the connection attempt. The
FortiGate unit chooses the policy list based on the source and destination addresses
of the connection attempt.
The FortiGate unit then starts at the top of the selected policy list and searches down
the list for the first policy that matches the connection attempt source and destination
addresses, service port, and time and date at which the connection attempt was
received. The first policy that matches is applied to the connection attempt. If no policy
matches, the connection is dropped.
The default policy accepts all connection attempts from the internal network to the
Internet. From the internal network, users can browse the web, use POP3 to get
email, use FTP to download files through the firewall, and so on. If the default policy is
at the top of the internal->external policy list, the firewall allows all connections from
the internal network to the Internet because all connections match the default policy. If
more specific policies are added to the list below the default policy, they are never
matched.
A policy that is an exception to the default policy, for example, a policy to block FTP
connections, must be placed above the default policy in the internal->external policy
list. In this example, all FTP connection attempts from the internal network would then
match the FTP policy and be blocked. Connection attempts for all other kinds of
services would not match with the FTP policy but they would match with the default
policy. Therefore, the firewall would still accept all other connections from the internal
network.
Note: Policies that require authentication must be added to the policy list above matching
policies that do not; otherwise, the policy that does not require authentication is selected first.
FortiGate-800 Installation and Configuration Guide
195
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring policy lists
Firewall configuration
Changing the order of policies in a policy list
To change the order of a policy in a policy list
Go to Firewall > Policy.
1
2
3
Select the policy list that you want to change the order of.
Choose the policy that you want to move and select Move To
in the policy list.
to change its order
4
Type a number in the Move to field to specify where in the policy list to move the policy
and select OK.
Enabling and disabling policies
You can enable and disable policies in the policy list to control whether the policy is
active or not. The FortiGate unit matches enabled policies but does not match
disabled policies.
Disabling policies
Disable a policy to temporarily prevent the firewall from selecting the policy. Disabling
a policy does not stop active communications sessions that have been allowed by the
policy. For information about stopping active communication sessions, see “System
To disable a policy
1
2
3
Go to Firewall > Policy.
Select the policy list that contains the policy that you want to disable.
Clear the check box of the policy to disable it.
Enabling policies
Enable a policy that has been disabled so that the firewall can match connections with
the policy.
To enable a policy
1
2
3
Go to Firewall > Policy.
Select the policy list that contains the policy that you want to enable.
Select the check box of the policy to enable it.
196
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Addresses
Addresses
All policies require source and destination addresses. To add addresses to a policy,
you must first add addresses to the address list for the interfaces, zones, or VLAN
subinterfaces of the policy.
You can add, edit, and delete all firewall addresses as required. You can also organize
related addresses into address groups to simplify policy creation.
A firewall address consists of an IP address and a netmask. This information can
represent:
•
•
•
The address of a subnet (for example, for a class C subnet,
IP address: 192.168.20.0 and Netmask: 255.255.255.0).
A single IP address (for example, IP Address: 192.168.20.1 and
Netmask: 255.255.255.255)
All possible IP addresses (represented by IP Address: 0.0.0.0 and Netmask:
0.0.0.0)
Note: IP address: 0.0.0.0 and Netmask: 255.255.255.255 is not a valid firewall address.
This section describes:
•
•
•
•
Adding addresses
To add an address
1
2
3
4
Go to Firewall > Address.
Select the interface, VLAN subinterface, or zone that you want to add the address to.
Select New to add a new address.
Enter an Address Name to identify the address.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Spaces and other special characters are not allowed.
5
Enter the IP Address.
The IP address can be:
•
•
•
The IP address of a single computer (for example, 192.45.46.45).
The IP address of a subnetwork (for example, 192.168.1.0 for a class C subnet).
0.0.0.0 to represent all possible IP addresses
FortiGate-800 Installation and Configuration Guide
197
Download from Www.Somanuals.com. All Manuals Search And Download.
Addresses
Firewall configuration
6
Enter the Netmask.
The netmask corresponds to the type of address that you are adding. For example:
•
•
•
•
•
The netmask for the IP address of a single computer should be 255.255.255.255.
The netmask for a class A subnet should be 255.0.0.0.
The netmask for a class B subnet should be 255.255.0.0.
The netmask for a class C subnet should be 255.255.255.0.
The netmask for all addresses should be 0.0.0.0
Note: To add an address to represent any address on a network set the IP Address to 0.0.0.0
and the Netmask to 0.0.0.0
7
Select OK to add the address.
Figure 42: Adding an internal address
Editing addresses
Edit an address to change its IP address and netmask. You cannot edit the address
name. To change the address name, you must delete the address entry and then add
the address again with a new name.
To edit an address
1
2
3
4
Go to Firewall > Address.
Select the interface list containing the address that you want to edit.
Choose an address to edit and select Edit Address
.
Make the required changes and select OK to save the changes.
198
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Addresses
Deleting addresses
Deleting an address removes it from an address list. To delete an address that has
been added to a policy, you must first remove the address from the policy.
To delete an address
1
2
Go to Firewall > Address.
Select the interface list containing the address that you want to delete.
You can delete any address that has a Delete Address icon
.
3
4
Choose an address to delete and select Delete
Select OK to delete the address.
.
Organizing addresses into address groups
You can organize related addresses into address groups to make it easier to add
policies. For example, if you add three addresses and then add them to an address
group, you only have to add one policy using the address group rather than a separate
policy for each address.
You can add address groups to any interface, VLAN subinterface, or zone. The
address group can only contain addresses from that interface, VLAN subinterface, or
zone. Address groups are available in interface, VLAN subinterface, or zone source or
destination address lists.
Address groups cannot have the same names as individual addresses. If an address
group is included in a policy, it cannot be deleted unless it is first removed from the
policy.
To organize addresses into an address group
1
2
Go to Firewall > Address > Group.
Select the interface, VLAN subinterface, or zone that you want to add the address
group to.
3
Enter a Group Name to identify the address group.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
6
To add addresses to the address group, select an address from the Available
Addresses list and select the right arrow to add it to the Members list.
To remove addresses from the address group, select an address from the Members
list and select the left arrow to remove it from the group.
Select OK to add the address group.
FortiGate-800 Installation and Configuration Guide
199
Download from Www.Somanuals.com. All Manuals Search And Download.
Services
Firewall configuration
Figure 43: Adding an internal address group
Services
Use services to determine the types of communication accepted or denied by the
firewall. You can add any of the predefined services to a policy. You can also create
custom services and add services to service groups.
This section describes:
•
•
•
•
•
Predefined services
The FortiGate predefined firewall services are listed in Table 38. You can add these
services to any policy.
Table 38: FortiGate predefined services
Service name
Description
Protocol
Port
ANY
Match connections on any port. A connection all
that uses any of the predefined services is
allowed through the firewall.
all
200
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Services
Table 38: FortiGate predefined services (Continued)
Service name
Description
Protocol
Port
GRE
Generic Routing Encapsulation. A protocol
that allows an arbitrary network protocol to be
transmitted over any other arbitrary network
protocol, by encapsulating the packets of the
protocol within GRE packets.
47
AH
Authentication Header. AH provides source
host authentication and data integrity, but not
secrecy. This protocol is used for
51
50
authentication by IPSec remote gateways set
to aggressive mode.
ESP
Encapsulating Security Payload. This service
is used by manual key and AutoIKE VPN
tunnels for communicating encrypted data.
AutoIKE key VPN tunnels use ESP after
establishing the tunnel using IKE.
AOL
BGP
AOL instant messenger protocol.
tcp
tcp
5190-5194
179
Border Gateway Protocol routing protocol.
BGP is an interior/exterior routing protocol.
DHCP-Relay
Dynamic Host Configuration Protocol (DHCP) udp
allocates network addresses and delivers
configuration parameters from DHCP servers
to hosts.
67
DNS
Domain name service for translating domain tcp
53
53
79
names into IP addresses.
udp
FINGER
A network service that provides information
about users.
tcp
FTP
FTP service for transferring files.
tcp
tcp
21
70
GOPHER
Gopher communication service. Gopher
organizes and displays Internet server
contents as a hierarchically structured list of
files.
H323
H.323 multimedia protocol. H.323 is a
standard approved by the International
Telecommunication Union (ITU) that defines
how audiovisual conferencing data is
transmitted across networks.
tcp
1720, 1503
HTTP
HTTPS
IKE
HTTP is the protocol used by the word wide tcp
web for transferring data for web pages.
80
HTTP with secure socket layer (SSL) service tcp
for secure communication with web servers.
443
500
IKE is the protocol to obtain authenticated
keying material for use with ISAKMP for
IPSEC.
udp
IMAP
Internet Message Access Protocol is a
protocol used for retrieving email messages.
tcp
143
Internet-Locator- Internet Locator Service includes LDAP, User tcp
389
Service
Locator Service, and LDAP over TLS/SSL.
IRC
Internet Relay Chat allows people connected tcp
to the Internet to join live discussions.
6660-6669
1701
L2TP
L2TP is a PPP-based tunnel protocol for
remote access.
tcp
FortiGate-800 Installation and Configuration Guide
201
Download from Www.Somanuals.com. All Manuals Search And Download.
Services
Firewall configuration
Table 38: FortiGate predefined services (Continued)
Service name
Description
Protocol
Port
LDAP
Lightweight Directory Access Protocol is a set tcp
of protocols used to access information
directories.
389
NetMeeting
NFS
NetMeeting allows users to teleconference
using the Internet as the transmission
medium.
tcp
1720
Network File System allows network users to tcp
access shared files stored on computers of
different types.
111, 2049
119
NNTP
Network News Transport Protocol is a
protocol used to post, distribute, and retrieve
USENET messages.
tcp
NTP
Network time protocol for synchronizing a
computer’s time with a time server.
tcp
123
89
OSPF
Open Shortest Path First (OSPF) routing
protocol. OSPF is a common link state
routing protocol.
PC-Anywhere
PING
PC-Anywhere is a remote control and file
transfer protocol.
udp
5632
8
ICMP echo request/reply for testing
connections to other devices.
icmp
TIMESTAMP
ICMP timestamp request messages.
icmp
icmp
icmp
tcp
13
INFO_REQUEST ICMP information request messages.
INFO_ADDRESS ICMP address mask request messages.
15
17
POP3
Post office protocol email protocol for
downloading email from a POP3 server.
110
PPTP
Point-to-Point Tunneling Protocol is a
protocol that allows corporations to extend
their own corporate network through private
tunnels over the public Internet.
tcp
1723
QUAKE
For connections used by the popular Quake udp
multi-player computer game.
26000,
27000,
27910,
27960
RAUDIO
RLOGIN
For streaming real audio multimedia traffic.
udp
tcp
7070
513
Rlogin service for remotely logging into a
server.
RIP
Routing Information Protocol is a common
distance vector routing protocol.
udp
tcp
520
25
SMTP
SNMP
For sending mail between email servers on
the Internet.
Simple Network Management Protocol is a
set of protocols for managing complex
networks
tcp
161-162
161-162
udp
SSH
SSH service for secure connections to
computers for remote management.
tcp
22
udp
udp
22
SYSLOG
TALK
Syslog service for remote logging.
514
A protocol supporting conversations between udp
two or more users.
517-518
202
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Services
Table 38: FortiGate predefined services (Continued)
Service name
TCP
Description
Protocol
tcp
Port
All TCP ports.
0-65535
23
TELNET
Telnet service for connecting to a remote
computer to run commands.
tcp
TFTP
Trivial file transfer protocol, a simple file
transfer protocol similar to FTP but with no
security features.
udp
69
UDP
All UDP ports.
udp
0-65535
540
UUCP
Unix to Unix copy utility, a simple file copying udp
protocol.
VDOLIVE
WAIS
For VDO Live streaming multimedia traffic.
tcp
tcp
7000-7010
210
Wide Area Information Server. An Internet
search protocol.
WINFRAME
For WinFrame communications between
computers running Windows NT.
tcp
tcp
1494
X-WINDOWS
For remote communications between an
X-Window server and X-Window clients.
6000-6063
Adding custom TCP and UDP services
Add a custom TCP or UDP service if you need to create a policy for a service that is
not in the predefined service list.
To add a custom TCP or UDP service
Go to Firewall > Service > Custom.
Select TCP/UDP from the Protocol list.
Select New.
1
2
3
4
Type a Name for the new custom TCP or UDP service. This name appears in the
service list used when you add a policy.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
5
6
Select the Protocol (either TCP or UDP) used by the service.
Specify a Source and Destination Port number range for the service by entering the
low and high port numbers. If the service uses one port number, enter this number in
both the low and high fields.
7
8
If the service has more than one port range, select Add to specify additional protocols
and port ranges.
If there are too many port range rows, select Delete
to remove each extra row.
Select OK to add the custom service.
You can now add this custom service to a policy.
FortiGate-800 Installation and Configuration Guide
203
Download from Www.Somanuals.com. All Manuals Search And Download.
Services
Firewall configuration
Adding custom ICMP services
Add a custom ICMP service if you need to create a policy for a service that is not in
the predefined service list.
To add a custom ICMP service
Go to Firewall > Service > Custom.
Select ICMP from the Protocol list.
Select New.
1
2
3
4
Type a Name for the new custom ICMP service. This name appears in the service list
used when you add a policy.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
5
6
Specify the ICMP type and code for the service.
Select OK to add the custom service.
You can now add this custom service to a policy.
Adding custom IP services
Add a custom IP service if you need to create a policy for a service that is not in the
predefined service list.
To add a custom IP service
Go to Firewall > Service > Custom.
Select IP from the Protocol list.
Select New.
1
2
3
4
Type a Name for the new custom IP service. This name appears in the service list
used when you add a policy.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
5
6
Specify the IP protocol number for the service.
Select OK to add the custom service.
You can now add this custom service to a policy.
Grouping services
To make it easier to add policies, you can create groups of services and then add one
policy to provide or block access for all the services in the group. A service group can
contain predefined services and custom services in any combination. You cannot add
service groups to another service group.
To group services
1
2
Go to Firewall > Service > Group.
Select New.
204
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Schedules
3
Type a Group Name to identify the group.
This name appears in the service list when you add a policy and cannot be the same
as a predefined service name.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
6
To add services to the service group, select a service from the Available Services list
and select the right arrow to copy it to the Members list.
To remove services from the service group, select a service from the Members list and
select the left arrow to remove it from the group.
Select OK to add the service group.
Figure 44: Adding a service group
Schedules
Use schedules to control when policies are active or inactive. You can create one-time
schedules and recurring schedules.
You can use one-time schedules to create policies that are effective once for the
period of time specified in the schedule. Recurring schedules repeat weekly. You can
use recurring schedules to create policies that are effective only at specified times of
the day or on specified days of the week.
This section describes:
•
•
•
FortiGate-800 Installation and Configuration Guide
205
Download from Www.Somanuals.com. All Manuals Search And Download.
Schedules
Firewall configuration
Creating one-time schedules
You can create a one-time schedule that activates or deactivates a policy for a
specified period of time. For example, your firewall might be configured with the
default policy that allows access to all services on the Internet at all times. You can
add a one-time schedule to block access to the Internet during a holiday period.
To create a one-time schedule
Go to Firewall > Schedule > One-time.
Select New.
1
2
3
Type a Name for the schedule.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
6
Set the Start date and time for the schedule.
Set Start and Stop times to 00 for the schedule to be active for the entire day.
Set the Stop date and time for the schedule.
One-time schedules use a 24-hour clock.
Select OK to add the one-time schedule.
Figure 45: Adding a one-time schedule
206
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Schedules
Creating recurring schedules
You can create a recurring schedule that activates or deactivates policies at specified
times of the day or on specified days of the week. For example, you might want to
prevent Internet use outside working hours by creating a recurring schedule.
If you create a recurring schedule with a stop time that occurs before the start time,
the schedule starts at the start time and finishes at the stop time on the next day. You
can use this technique to create recurring schedules that run from one day to the next.
You can also create a recurring schedule that runs for 24 hours by setting the start and
stop times to the same time.
To create a recurring schedule
Go to Firewall > Schedule > Recurring.
Select New to create a new schedule.
Type a Name for the schedule.
1
2
3
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
Select the days of the week that you want the schedule to be active on.
Set the Start and Stop hours in between which you want the schedule to be active.
Recurring schedules use a 24-hour clock.
6
Select OK to save the recurring schedule.
Figure 46: Adding a recurring schedule
FortiGate-800 Installation and Configuration Guide
207
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual IPs
Firewall configuration
Adding schedules to policies
After you create schedules, you can add them to policies to schedule when the
policies are active. You can add the new schedules to policies when you create the
policy, or you can edit existing policies and add a new schedule to them.
To add a schedule to a policy
1
2
3
4
5
6
Go to Firewall > Policy.
Create a new policy or edit a policy to change its schedule.
Configure the policy as required.
Add a schedule by selecting it from the Schedule list.
Select OK to save the policy.
Arrange the policy in the policy list to have the effect that you expect.
For example, to use a one-time schedule to deny access to a policy, add a policy that
matches the policy to be denied in every way. Choose the one-time schedule that you
added and set Action to DENY. Then place the policy containing the one-time
schedule in the policy list above the policy to be denied.
Virtual IPs
Use virtual IPs to access IP addresses on a destination network that are hidden from
the source network by NAT security policies. To allow connections between these
networks, you must create a mapping between an address on the source network and
the real address on the destination network. This mapping is called a virtual IP.
For example, if the computer hosting your web server is located on your DMZ
network, it could have a private IP address such as 10.10.10.3. To get packets from
the Internet to the web server, you must have an external address for the web server
on the Internet. You must then add a virtual IP to the firewall that maps the external IP
address of the web server to the actual address of the web server on the DMZ
network. To allow connections from the Internet to the web server, you must then add
an external->DMZ firewall policy and set Destination to the virtual IP.
You can create two types of virtual IPs:
Static NAT
Used to translate an address on a source network to a hidden address on a
destination network. Static NAT translates the source address of return
packets to the address on the source network.
Port Forwarding Used to translate an address and a port number on a source network to a
hidden address and, optionally, a different port number on a destination
network. Using port forwarding you can also route packets with a specific
port number and a destination address that matches the IP address of the
interface that receives the packets. This technique is called port forwarding
or port address translation (PAT). You can also use port forwarding to change
the destination port of the forwarded packets.
208
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Virtual IPs
This section describes:
•
•
•
Adding static NAT virtual IPs
To add a static NAT virtual IP
1
2
3
Go to Firewall > Virtual IP.
Select New to add a virtual IP.
Type a Name for the virtual IP.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
Select the virtual IP External Interface from the list.
The external interface is the interface connected to the source network that receives
the packets to be forwarded to the destination network.
You can select any firewall interface or a VLAN subinterface.
contains example virtual IP external interface settings and describes the policies that
you can add the resulting virtual IP to.
Table 39: Virtual IP External Interface examples
External Interface Description
internal
To map an internal address to an address on a network connected to
another interface, VLAN subinterface, or zone. If you select internal, the
static NAT virtual IP can be added to policies for connections from the
internal interface or any zone containing the internal interface, to any
other interface, VLAN subinterface, or zone.
external
To map an external address to an address on a network connected to
another interface, VLAN subinterface, or zone. If you select external, the
static NAT virtual IP can be added to policies for connections from the
external interface or any zone containing the external interface, to any
other interface, VLAN subinterface, or zone.
5
6
In the Type section, select Static NAT.
Enter the External IP Address that you want to map to an address on the destination
network.
For example, if the virtual IP provides access from the Internet to a web server on a
destination network, the external IP address must be a static IP address obtained from
your ISP for your web server. This address must be a unique address that is not used
by another host and cannot be the same as the IP address of the external interface
selected in step 4. However, this address must be routed to this interface. The virtual
IP address and the external IP address can be on different subnets.
If the IP address of the external interface selected in step 4 is set using PPPoE or
DHCP, you can enter 0.0.0.0 for the external IP address. The FortiGate unit
substitutes the IP address set for this external interface using PPPoE or DHCP.
FortiGate-800 Installation and Configuration Guide
209
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual IPs
Firewall configuration
7
8
In Map to IP, type the real IP address on the destination network, for example, the IP
address of a web server on an internal network.
Note: The firewall translates the source address of outbound packets from the host with the
Map to IP address to the virtual IP External IP Address, instead of the firewall external address.
Select OK to save the virtual IP.
You can now add the virtual IP to firewall policies.
Figure 47: Adding a static NAT virtual IP
Adding port forwarding virtual IPs
To add port forwarding virtual IPs
Go to Firewall > Virtual IP.
1
2
3
Select New to add a virtual IP.
Type a Name for the virtual IP.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
Select the virtual IP External Interface from the list.
The external interface is the interface connected to the source network that receives
the packets to be forwarded to the destination network.
You can select any firewall interface or a VLAN subinterface.
In the Type section, select Port Forwarding.
210
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Virtual IPs
6
Enter the External IP Address that you want to map to an address on the destination
zone.
You can set the external IP address to the IP address of the external interface
selected in step 4 or to any other address.
If the IP address of the external interface selected in step 4 is set using PPPoE or
DHCP, you can enter 0.0.0.0 for the External IP Address. The FortiGate unit
substitutes the IP address set for this external interface using PPPoE or DHCP.
For example, if the virtual IP provides access from the Internet to a server on your
internal network, the external IP address must be a static IP address obtained from
your ISP for this server. This address must be a unique address that is not used by
another host. However, this address must be routed to the external interface selected
in step 4. The virtual IP address and the external IP address can be on different
subnets.
7
Enter the External Service Port number that you want to configure port forwarding for.
The external service port number must match the destination port of the packets to be
forwarded. For example, if the virtual IP provides access from the Internet to a web
server, the external service port number is 80 (the HTTP port).
8
9
In Map to IP, enter the real IP address on the destination network.
For example, the real IP address could be the IP address of a web server on an
internal network.
In Map to Port, enter the port number to be added to packets when they are
forwarded.
If you do not want to translate the port, enter the same number as the External Service
Port.
If you want to translate the port, enter the port number to which to translate the
destination port of the packets when they are forwarded by the firewall.
10
11
Select the protocol (TCP or UDP) that you want the forwarded packets to use.
Select OK to save the port forwarding virtual IP.
FortiGate-800 Installation and Configuration Guide
211
Download from Www.Somanuals.com. All Manuals Search And Download.
Virtual IPs
Firewall configuration
Figure 48: Adding a port forwarding virtual IP
Adding policies with virtual IPs
Use the following procedure to add a policy that uses a virtual IP to forward packets.
To add a policy with a virtual IP
Go to Firewall > Policy.
1
2
Select the type of policy that you want to add.
•
The source interface must match the interface selected in the External Interface
list.
•
The destination interface must match the interface connected to the network with
the Map to IP address.
3
Use the following information to configure the policy.
Source
Select the source address from which users can access the server.
Destination
Schedule
Service
Select the virtual IP.
Select a schedule as required.
Select the service that matches the Map to Service that you selected
for the port-forwarding virtual IP.
Action
NAT
Set action to ACCEPT to accept connections to the internal server.
You can also select DENY to deny access.
Select NAT if the firewall is protecting the private addresses on the
destination network from the source network.
212
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
IP pools
Authentication
Optionally select Authentication and select a user group to require
users to authenticate with the firewall before accessing the server
using port forwarding.
Log Traffic
Anti-Virus & Web filter
Select these options to log port-forwarded traffic and apply antivirus
and web filter protection to this traffic.
4
Select OK to save the policy.
IP pools
An IP pool (also called a dynamic IP pool) is a range of IP addresses added to a
firewall interface. If you add IP pools to an interface, you can select Dynamic IP Pool
when you configure a policy with the destination set to this interface. You can add an
IP pool if you want to add NAT mode policies that translate source addresses to
addresses randomly selected from the IP pool rather than being limited to the IP
address of the destination interface.
If you add an IP pool to the internal interface, you can select Dynamic IP pool for
policies with the internal interface as the destination. For example, you can add IP
pools to External->Internal and DMZ->Internal policies.
You can add multiple IP pools to any interface but only the first IP pool is used by the
firewall.
This section describes:
•
•
•
Adding an IP pool
To add an IP pool
1
2
Go to Firewall > IP Pool.
Select the interface to which to add the IP pool.
You can select a firewall interface or a VLAN subinterface.
3
4
Select New to add a new IP pool to the selected interface.
Enter the Start IP and End IP addresses for the range of addresses in the IP pool.
The start IP and end IP must define the start and end of an address range. The start
IP must be lower than the end IP. The start IP and end IP must be on the same subnet
as the IP address of the interface that you are adding the IP pool.
5
Select OK to save the IP pool.
FortiGate-800 Installation and Configuration Guide
213
Download from Www.Somanuals.com. All Manuals Search And Download.
IP/MAC binding
Firewall configuration
Figure 49: Adding an IP Pool
IP Pools for firewall policies that use fixed ports
Some network configurations do not operate correctly if a NAT policy translates the
source port of packets used by the connection. NAT translates source ports to keep
track of connections for a particular service. You can select fixed port for NAT policies
to prevent source port translation. However, selecting fixed port means that only one
connection can be supported through the firewall for this service. To be able to support
multiple connections, you can add an IP pool to the destination interface, and then
select dynamic IP pool in the policy. The firewall randomly selects an IP address from
the IP pool and assigns it to each connection. In this case the number of connections
that the firewall can support is limited by the number of IP addresses in the IP pool.
IP pools and dynamic NAT
You can use IP pools for dynamic NAT. For example, your organization might have
purchased a range of Internet addresses but you might have only one Internet
connection on the external interface of your FortiGate unit.
You can assign one of your organization’s Internet IP addresses to the external
interface of the FortiGate unit. If the FortiGate unit is operating in NAT/Route mode, all
connections from your network to the Internet appear to come from this IP address.
If you want connections to originate from all your Internet IP addresses, you can add
this address range to an IP pool for the external interface. Then you can select
Dynamic IP Pool for all policies with the external interface as the destination. For each
connection, the firewall dynamically selects an IP address from the IP pool to be the
source address for the connection. As a result, connections to the Internet appear to
be originating from any of the IP addresses in the IP pool.
IP/MAC binding
IP/MAC binding protects the FortiGate unit and your network from IP spoofing attacks.
IP spoofing attacks try to use the IP address of a trusted computer to connect to, or
through, the FortiGate unit from a different computer. The IP address of a computer is
easy to change to a trusted address, but MAC addresses are added to ethernet cards
at the factory and are not easy to change.
214
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
IP/MAC binding
You can enter the static IP addresses and corresponding MAC addresses of trusted
computers in the static IP/MAC table.
If you have trusted computers with dynamic IP addresses that are set by the FortiGate
DHCP server, the FortiGate unit adds these IP addresses and their corresponding
MAC addresses to the dynamic IP/MAC table. For information about viewing the table,
binding table is not available in Transparent mode.
You can enable IP/MAC binding for packets in sessions connecting to the firewall or
passing through the firewall.
Note: If you enable IP/MAC binding and change the IP address of a computer with an IP or
MAC address in the IP/MAC list, you must also change the entry in the IP/MAC list or the
computer does not have access to or through the FortiGate unit. You must also add the IP/MAC
address pair of any new computer that you add to your network or the new computer does not
have access to or through the FortiGate unit.
This section describes:
•
•
•
•
•
Configuring IP/MAC binding for packets going through the firewall
Use the following procedure to use IP/MAC binding to filter packets that a firewall
policy would normally allow through the firewall.
To configure IP/MAC binding for packets going through the firewall
1
2
3
4
Go to Firewall > IP/MAC Binding > Setting.
Select the Enable IP/MAC binding going through the firewall check box.
Go to Firewall > IP/MAC Binding > Static IP/MAC.
Select New to add IP/MAC binding pairs to the IP/MAC binding list.
All packets that would normally be allowed through the firewall by a firewall policy are
first compared with the entries in the IP/MAC binding list. If a match is found, then the
firewall attempts to match the packet with a policy.
FortiGate-800 Installation and Configuration Guide
215
Download from Www.Somanuals.com. All Manuals Search And Download.
IP/MAC binding
Firewall configuration
For example, if the IP/MAC pair IP 1.1.1.1 and 12:34:56:78:90:ab:cd is added to the
IP/MAC binding list:
•
•
•
•
A packet with IP address 1.1.1.1 and MAC address 12:34:56:78:90:ab:cd is
allowed to go on to be matched with a firewall policy.
A packet with IP 1.1.1.1 but with a different MAC address is dropped immediately
to prevent IP spoofing.
A packet with a different IP address but with a MAC address of
12:34:56:78:90:ab:cd is dropped immediately to prevent IP spoofing.
A packet with both the IP address and MAC address not defined in the IP/MAC
binding table:
•
is allowed to go on to be matched with a firewall policy if IP/MAC binding is set
to Allow traffic,
•
is blocked if IP/MAC binding is set to Block traffic.
Configuring IP/MAC binding for packets going to the firewall
Use the following procedure to use IP/MAC binding to filter packets that would
normally connect with the firewall (for example, when an administrator is connecting to
the FortiGate unit for management).
To configure IP/MAC binding for packets going to the firewall
1
2
3
4
Go to Firewall > IP/MAC Binding > Setting.
Select the Enable IP/MAC binding going to the firewall check box.
Go to Firewall > IP/MAC Binding > Static IP/MAC.
Select New to add IP/MAC binding pairs to the IP/MAC binding list.
All packets that would normally connect to the firewall are first compared with the
entries in the IP/MAC binding table.
For example, if the IP/MAC pair IP 1.1.1.1 and 12:34:56:78:90:ab:cd is added to the
IP/MAC binding list:
•
•
•
•
A packet with IP address 1.1.1.1 and MAC address 12:34:56:78:90:ab:cd is
allowed to connect to the firewall.
A packet with IP 1.1.1.1 but with a different MAC address is dropped immediately
to prevent IP spoofing.
A packet with a different IP address but with a MAC address of
12:34:56:78:90:ab:cd is dropped immediately to prevent IP spoofing.
A packet with both the IP address and MAC address not defined in the IP/MAC
binding table:
•
•
is allowed to connect to the firewall if IP/MAC binding is set to Allow traffic,
is blocked if IP/MAC binding is set to Block traffic.
Adding IP/MAC addresses
To add an IP/MAC address
1
2
Go to Firewall > IP/MAC Binding > Static IP/MAC.
Select New to add an IP address/MAC address pair.
216
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
IP/MAC binding
3
Enter the IP Address and the MAC Address.
You can bind multiple IP addresses to the same MAC address. You cannot bind
multiple MAC addresses to the same IP address.
However, you can set the IP address to 0.0.0.0 for multiple MAC addresses. This
means that all packets with these MAC addresses are matched with the IP/MAC
binding list.
Similarly, you can set the MAC address to 00:00:00:00:00:00 for multiple IP
addresses. This means that all packets with these IP addresses are matched with the
IP/MAC binding list.
4
Type a Name for the new IP/MAC address pair.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
5
6
Select the Enable check box to enable IP/MAC binding for the IP/MAC pair.
Select OK to save the IP/MAC binding pair.
Viewing the dynamic IP/MAC list
To view the dynamic IP/MAC list
Go to Firewall > IP/MAC Binding > Dynamic IP/MAC.
1
Enabling IP/MAC binding
Caution: Make sure that you have added the IP/MAC Address pair of your management
!
computer before enabling IP/MAC binding.
To enable IP/MAC binding
1
Go to Firewall > IP/MAC Binding > Setting.
2
3
4
Select the Enable IP/MAC binding going through the firewall check box if you want to
turn on IP/MAC binding for packets that could be matched by policies.
Select the Enable IP/MAC binding going to the firewall check box if you want to turn
on IP/MAC binding for packets connecting to the firewall.
Configure how IP/MAC binding handles packets with IP and MAC addresses that are
not defined in the IP/MAC list.
Select Allow traffic to allow all packets with IP and MAC address pairs that are not
added to the IP/MAC binding list.
Select Block traffic to block packets with IP and MAC address pairs that are not added
to the IP/MAC binding list.
5
Select Apply to save the changes.
FortiGate-800 Installation and Configuration Guide
217
Download from Www.Somanuals.com. All Manuals Search And Download.
Content profiles
Firewall configuration
Figure 50: IP/MAC settings
Content profiles
Use content profiles to apply different protection settings for content traffic that is
controlled by firewall policies. You can use content profiles to:
•
•
•
•
Configure antivirus protection for HTTP, FTP, POP3, SMTP, and IMAP policies
Configure web filtering for HTTP policies
Configure email filtering for IMAP and POP3 policies
Configure oversized file and email blocking for HTTP, FTP, POP3, SMTP, and
IMAP policies
•
Pass fragmented email for POP3, SMTP, and IMAP policies
Using content profiles, you can build protection configurations that can be applied to
different types of firewall policies. This allows you to customize types and levels of
protection for different firewall policies.
For example, while traffic between internal and external addresses might need strict
protection, traffic between trusted internal addresses might need moderate protection.
You can configure policies for different traffic services to use the same or different
content profiles.
Content profiles can be added to NAT/Route mode and Transparent mode policies.
•
•
•
218
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Content profiles
Default content profiles
The FortiGate unit has the following four default content profiles that are displayed on
the Firewall Content Profile page. You can use the default content profiles or create
your own.
Strict
To apply maximum content protection to HTTP, FTP, IMAP, POP3, and
SMTP content traffic. You would not use the strict content profile under
normal circumstances but it is available if you have extreme problems with
viruses and require maximum content screening protection.
Scan
To apply antivirus scanning to HTTP, FTP, IMAP, POP3, and SMTP content
traffic. Quarantine is also selected for all content services. On FortiGate
models with a hard disk, if antivirus scanning finds a virus in a file, the file is
quarantined on the FortiGate hard disk. If required, system administrators
can recover quarantined files.
Web
To apply antivirus scanning and web content blocking to HTTP content
traffic. You can add this content profile to firewall policies that control HTTP
traffic.
Unfiltered
Use if you do not want to apply content protection to content traffic. You can
add this content profile to firewall policies for connections between highly
trusted or highly secure networks where content does not need to be
protected.
Adding content profiles
If the default content profiles do not provide the protection that you require, you can
create custom content profiles.
To add a content profile
1
2
3
4
Go to Firewall > Content Profile.
Select New.
Type a Profile Name.
Enable the antivirus protection options that you want.
Anti Virus Scan
File Block
Delete files with blocked file patterns even if they do not contain
viruses. Enable file blocking when a virus has been found that is so
new that virus scanning does not detect it. See “File blocking” on
Quarantine
Quarantine blocked and infected files according to the quarantine
configuration.
Note: If both Anti Virus Scan and File Block are enabled, the FortiGate unit blocks files that
match enabled file patterns before they are scanned for viruses.
5
Enable the web filtering options that you want.
Web URL Block
Block unwanted web pages and web sites. This option adds
FortiGate Web URL blocking (see “Configuring FortiGate Web URL
FortiGate-800 Installation and Configuration Guide
219
Download from Www.Somanuals.com. All Manuals Search And Download.
Content profiles
Firewall configuration
Web Content Block
Block web pages that contain unwanted words or phrases. See
Web Script Filter
Web Exempt List
Exempt URLs from web filtering and virus scanning. See “Exempt
6
Enable the email filter protection options that you want.
Email Block List
Add a subject tag to email from unwanted addresses. See “Email
Email Exempt List
Exempt sender address patterns from email filtering. See “Email
Email Content Block Add a subject tag to email that contains unwanted words or phrases.
7
8
Enable the fragmented email and oversized file and email options that you want.
Oversized File/Email Block or pass files and email that exceed thresholds configured as a
percent of system memory. See “Blocking oversized files and emails”
Pass Fragmented
Email
Allow email messages that have been fragmented to bypass antivirus
scanning. See “Exempting fragmented email from blocking” on
Select OK.
Figure 51: Example content profile
220
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Firewall configuration
Content profiles
Adding content profiles to policies
You can add content profiles to policies with action set to allow or encrypt and with
service set to ANY, HTTP, FTP, IMAP, POP3, SMTP, or a service group that includes
these services.
To add a content profile to a policy
1
2
Go to Firewall > Policy.
Select a policy list that contains policies that you want to add a content profile to.
For example, to enable network protection for files downloaded by internal network
users from the web, select an internal to external policy list.
3
4
5
6
7
8
Select New to add a new policy, or choose a policy and select Edit
Select the Anti-Virus & Web filter check box.
Select a content profile from the list.
.
Configure the remaining policy settings, if required.
Select OK.
Repeat this procedure for any policies that you want to enable network protection for.
FortiGate-800 Installation and Configuration Guide
221
Download from Www.Somanuals.com. All Manuals Search And Download.
Content profiles
Firewall configuration
222
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Users and authentication
FortiGate units support user authentication to the FortiGate user database, a RADIUS
server, and an LDAP server. You can add user names to the FortiGate user database
and then add a password to allow the user to authenticate using the internal database.
You can also add the names of RADIUS and LDAP servers. You can select RADIUS
to allow the user to authenticate using the selected RADIUS server or LDAP to allow
the user to authenticate using the selected LDAP server. You can disable a user name
so that the user cannot authenticate.
To enable authentication, you must add user names to one or more user groups. You
can also add RADIUS servers and LDAP servers to user groups. You can then select
a user group when you require authentication.
You can select user groups to require authentication for:
•
•
•
•
•
any firewall policy with Action set to ACCEPT
IPSec dialup user phase 1 configurations
XAuth functionality for phase 1 IPSec VPN configurations
PPTP
L2TP
When a user enters a user name and password, the FortiGate unit searches the
internal user database for a matching user name. If Disable is selected for that user
name, the user cannot authenticate and the connection is dropped. If Password is
selected for that user and the password matches, the connection is allowed. If the
password does not match, the connection is dropped.
If RADIUS is selected and RADIUS support is configured and the user name and
password match a user name and password on the RADIUS server, the connection is
allowed. If the user name and password do not match a user name and password on
the RADIUS server, the connection is dropped.
If LDAP is selected and LDAP support is configured and the user name and password
match a user name and password on the LDAP server, the connection is allowed. If
the user name and password do not match a user name and password on the LDAP
server, the connection is dropped.
If the user group contains user names, RADIUS servers, and LDAP servers, the
FortiGate unit checks them in the order in which they have been added to the user
group.
FortiGate-800 Installation and Configuration Guide
223
Download from Www.Somanuals.com. All Manuals Search And Download.
Setting authentication timeout
Users and authentication
This chapter describes:
•
•
•
•
•
Setting authentication timeout
Authentication timeout controls how long authenticated firewall connections can
remain idle before users must authenticate again to get access through the firewall.
To set authentication timeout
1
2
Go to System > Config > Options.
In Auth Timeout, type a number, in minutes.
The default authentication timeout is 15 minutes.
Adding user names and configuring authentication
Use the following procedures to add user names and configure authentication.
This section describes:
•
•
Adding user names and configuring authentication
To add a user name and configure authentication
1
2
3
Go to User > Local.
Select New to add a new user name.
Type the User Name.
The user name can contain numbers (0-9), uppercase and lowercase letters (A-Z,
a-z), and the special characters - and _. Other special characters and spaces are not
allowed.
4
Select one of the following authentication configurations:
Disable
Prevent this user from authenticating.
Password
Enter the password that this user must use to authenticate. The password
should be at least six characters long. The password can contain numbers
(0-9), uppercase and lowercase letters (A-Z, a-z), and the special characters
- and _. Other special characters and spaces are not allowed.
224
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Users and authentication
Adding user names and configuring authentication
LDAP
Require the user to authenticate to an LDAP server. Select the name of the
LDAP server to which the user must authenticate. You can only select an
LDAP server that has been added to the FortiGate LDAP configuration. See
Radius
Require the user to authenticate to a RADIUS server. Select the name of the
RADIUS server to which the user must authenticate. You can only select a
RADIUS server that has been added to the FortiGate RADIUS configuration.
5
6
Select the Try other servers if connect to selected server fails check box if you have
selected Radius and you want the FortiGate unit to try to connect to other RADIUS
servers added to the FortiGate RADIUS configuration.
Select OK.
Figure 52: Adding a user name
Deleting user names from the internal database
You cannot delete user names that have been added to user groups. Remove user
names from user groups before deleting them.
To delete a user name from the internal database
1
2
3
Go to User > Local.
Select Delete User
Select OK.
for the user name that you want to delete.
Note: Deleting the user name deletes the authentication configured for the user.
FortiGate-800 Installation and Configuration Guide
225
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring RADIUS support
Users and authentication
Configuring RADIUS support
If you have configured RADIUS support and a user is required to authenticate using a
RADIUS server, the FortiGate unit contacts the RADIUS server for authentication.
This section describes:
•
•
Adding RADIUS servers
To add a RADIUS server
1
2
3
Go to User > RADIUS.
Select New to add a new RADIUS server.
Type the Name of the RADIUS server.
You can type any name. The name can contain numbers (0-9), uppercase and
lowercase letters (A-Z, a-z), and the special characters - and _. Other special
characters and spaces are not allowed.
4
5
6
Enter the Server Name or IP address of the RADIUS server.
Enter the RADIUS server secret.
Select OK.
Figure 53: Example RADIUS configuration
Deleting RADIUS servers
You cannot delete a RADIUS server that has been added to a user group.
To delete a RADIUS server
1
2
3
Go to User > RADIUS.
Select Delete
Select OK.
beside the RADIUS server name that you want to delete.
226
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Users and authentication
Configuring LDAP support
Configuring LDAP support
If you have configured LDAP support and a user is required to authenticate using an
LDAP server, the FortiGate unit contacts the LDAP server for authentication. To
authenticate with the FortiGate unit, the user enters a user name and password. The
FortiGate unit sends this user name and password to the LDAP server. If the LDAP
server can authenticate the user, the user is successfully authenticated with the
FortiGate unit. If the LDAP server cannot authenticate the user, the connection is
refused by the FortiGate unit.
The FortiGate unit supports LDAP protocol functionality defined in RFC2251 for
looking up and validating user names and passwords. ForitGate LDAP supports all
LDAP servers compliant with LDAP v3.
FortiGate LDAP support does not extend to proprietary functionality, such as
notification of password expiration, that is available from some LDAP servers.
FortiGate LDAP support does not supply information to the user about why
authentication failed.
LDAP user authentication is supported for PPTP, L2TP, IPSec VPN, and firewall
authentication. With PPTP, L2TP, and IPSec VPN, PAP (packet authentication
protocol) is supported and CHAP (Challenge-Handshake Authentication Protocol) is
not.
This section describes:
•
•
Adding LDAP servers
To add an LDAP server
1
2
3
Go to User > LDAP.
Select New to add a new LDAP server.
Type the Name of the LDAP server.
You can type any name. The name can contain numbers (0-9), uppercase and
lowercase letters (A-Z, a-z), and the special characters - and _. Other special
characters and spaces are not allowed.
4
5
Enter the Server Name or IP address of the LDAP server.
Enter the Server Port used to communicate with the LDAP server.
By default LDAP uses port 389.
6
Enter the common name identifier for the LDAP server.
The common name identifier for most LDAP servers is cn. However some servers use
other common name identifiers such as uid.
FortiGate-800 Installation and Configuration Guide
227
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring LDAP support
Users and authentication
7
Enter the distinguished name used to look up entries on the LDAP server.
Enter the base distinguished name for the server using the correct X.500 or LDAP
format. The FortiGate unit passes this distinguished name unchanged to the server.
For example, you could use the following base distinguished name:
ou=marketing,dc=fortinet,dc=com
where ou is organization unit and dc is domain component
You can also specify multiple instances of the same field in the distinguished name,
for example, to specify multiple organization units:
ou=accounts,ou=marketing,dc=fortinet,dc=com
8
Select OK.
Figure 54: Example LDAP configuration
Deleting LDAP servers
You cannot delete an LDAP server that has been added to a user group.
To delete an LDAP server
1
2
3
Go to User > LDAP.
Select Delete
Select OK.
beside the LDAP server name that you want to delete.
228
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Users and authentication
Configuring user groups
Configuring user groups
To enable authentication, you must add user names, RADIUS servers, and LDAP
servers to one or more user groups. You can then select a user group when you
require authentication. You can select a user group to configure authentication for:
•
Policies that require authentication. Only users in the selected user group or users
that can authenticate with the RADIUS servers added to the user group can
authenticate with these policies.
•
•
•
•
IPSec VPN Phase 1 configurations for dialup users. Only users in the selected
user group can authenticate to use the VPN tunnel.
XAuth for IPSec VPN Phase 1 configurations. Only users in the selected user
group can be authenticated using XAuth.
The FortiGate PPTP configuration. Only users in the selected user group can use
PPTP.
The FortiGate L2TP configuration. Only users in the selected user group can use
L2TP.
When you add user names, RADIUS servers, and LDAP servers to a user group, the
order in which they are added determines the order in which the FortiGate unit checks
for authentication. If user names are first, then the FortiGate unit checks for a match
with these local users. If a match is not found, the FortiGate unit checks the RADIUS
or LDAP server. If a RADIUS or LDAP server is added first, the FortiGate unit checks
the server and then the local users.
If the user group contains users, RADIUS servers, and LDAP servers, the FortiGate
unit checks them in the order in which they have been added to the user group.
This section describes:
•
•
Adding user groups
Use the following procedure to add user groups to the FortiGate configuration. You
can add user names, RADIUS servers, and LDAP servers to user groups.
To add a user group
1
2
Go to User > User Group.
Select New to add a new user group.
FortiGate-800 Installation and Configuration Guide
229
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring user groups
Users and authentication
Figure 55: Adding a user group
3
Enter a Group Name to identify the user group.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
6
7
To add users to the user group, select a user from the Available Users list and select
the right arrow to add the name to the Members list.
To add a RADIUS server to the user group, select a RADIUS server from the Available
Users list and select the right arrow to add the RADIUS server to the Members list.
To add an LDAP server to the user group, select an LDAP server from the Available
Users list and select the right arrow to add the LDAP server to the Members list.
To remove users, RADIUS servers, or LDAP servers from the user group, select a
user, RADIUS server, or LDAP server from the Members list and select the left arrow
to remove the name, RADIUS server, or LDAP server from the group.
8
Select OK.
Deleting user groups
You cannot delete user groups that have been selected in a policy, a dialup user
phase 1 configuration, or a PPTP or L2TP configuration.
To delete a user group
1
2
3
Go to User > User Group
Select Delete
Select OK.
beside the user group that you want to delete.
230
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
IPSec VPN
A Virtual Private Network (VPN) is an extension of a private network that
encompasses links across shared or public networks such as the Internet. For
example, a company that has two offices in different cities, each with its own private
network, can use a VPN to create a secure tunnel between the offices. Similarly, a
teleworker can use a VPN client for remote access to a private office network. In both
cases, the secure connection appears to the user as a private network
communication, even though the communication is over a public network.
Secure VPN connections are enabled by a combination of tunneling, data encryption,
and authentication. Tunneling encapsulates data so that it can be transferred over the
public network. Instead of being sent in its original format, the data frames are
encapsulated within an additional header and then routed between tunnel endpoints.
Upon arrival at the destination endpoint, the data is decapsulated and forwarded to its
destination within the private network.
Encryption changes a data stream from clear text (something that a human or a
program can interpret) to cipher text (something that cannot be interpreted). The
information is encrypted and decrypted using mathematical algorithms known as
keys.
Authentication provides a means to verify the origin of a packet and the integrity of its
contents. Authentication is done using checksums calculated with keyed hash
function algorithms.
This chapter provides an overview about how to configure FortiGate IPSec VPN. For
a complete description of FortiGate VPN, see the FortiGate VPN Guide.
•
•
•
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
231
Download from Www.Somanuals.com. All Manuals Search And Download.
Key management
IPSec VPN
Key management
There are three basic elements in any encryption system:
•
•
•
an algorithm that changes information into code,
a cryptographic key that serves as a secret starting point for the algorithm,
a management system to control the key.
IPSec provides two ways to handle key exchange and management:
•
•
Manual Keys
When using manual keys, matching security settings must be entered at both ends of
the tunnel. These settings, which include both the encryption and authentication keys,
must be kept secret so that unauthorized parties cannot decrypt the data, even if they
know which encryption algorithm is being used.
Automatic Internet Key Exchange (AutoIKE) with pre-shared keys or certificates
For using multiple tunnels, an automated system of key management is required.
IPSec supports the automated generation and negotiation of keys using the Internet
Key Exchange protocol. This method of key management is referred to as AutoIKE.
Fortinet supports AutoIKE with pre-shared keys and AutoIKE with certificates.
AutoIKE with pre-shared keys
If both peers in a session are configured with the same pre-shared key, they can use it
to authenticate themselves to each other. The peers do not send the key to each
other. Instead, as part of the security negotiation process, they use it in combination
with a Diffie-Hellman group to create a session key. The session key is used for
encryption and authentication and is automatically regenerated by IKE during the
communication session.
Pre-shared keys are similar to manual keys in that they require the network
administrator to distribute and manage matching information at the VPN peer sites.
Whenever a pre-shared key changes, the administrator must update both sites.
AutoIKE with certificates
This method of key management involves a trusted third party, the certificate authority
(CA). Each peer in a VPN is first required to generate a set of keys, known as a
public/private key pair. The CA signs the public key for each peer, creating a signed
digital certificate. The peer then contacts the CA to retrieve their own certificates, plus
that of the CA. After the certificates are uploaded to the FortiGate units and
appropriate IPSec tunnels and policies are configured, the peers are ready to
communicate. As they do, IKE manages the exchange of certificates, sending signed
digital certificates from one peer to another. The signed digital certificates are
validated by the presence of the CA certificate at each end. With authentication
complete, the IPSec tunnel is then established.
232
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Manual key IPSec VPNs
In some respects, certificates are simpler to manage than manual keys or pre-shared
keys. For this reason, certificates are best suited to large network deployments.
Manual key IPSec VPNs
When using manual keys, complementary security parameters must be entered at
both ends of the tunnel. In addition to encryption and authentication algorithms and
keys, the security parameter index (SPI) is required. The SPI is an arbitrary value that
defines the structure of the communication between the peers. With other methods,
the SPI is generated automatically but with the manual key configuration it must be
entered as part of the VPN setup.
The encryption and authentication keys must match on the local and remote peers,
that is, the SPI values must be mirror images of each other. After you enter these
values, the VPN tunnel can start without a need for the authentication and encryption
algorithms to be negotiated. Provided you entered correct, complementary values, the
tunnels are established between the peers. This means that the tunnel already exists
between the peers. As a result, when traffic matches a policy requiring the tunnel, it
can be authenticated and encrypted immediately.
•
•
General configuration steps for a manual key VPN
A manual key VPN configuration consists of a manual key VPN tunnel, the source and
destination addresses for both ends of the tunnel, and an encrypt policy to control
access to the VPN tunnel.
To create a manual key VPN configuration
1
2
Configure an encrypt policy that includes the tunnel, source address, and destination
Adding a manual key VPN tunnel
Configure a manual key tunnel to create an IPSec VPN tunnel between the FortiGate
unit and a remote IPSec VPN client or gateway that is also using manual key.
To add a manual key VPN tunnel
1
2
3
Go to VPN > IPSec > Manual Key.
Select New to add a new manual key VPN tunnel.
Type a VPN Tunnel Name.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
Enter the Local SPI.
The Local Security Parameter Index is a hexadecimal number of up to eight digits
(digits can be 0 to 9, a to f) in the range bb8 to FFFFFFF. This number must be added
to the Remote SPI at the opposite end of the tunnel.
FortiGate-800 Installation and Configuration Guide
233
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual key IPSec VPNs
IPSec VPN
5
6
Enter the Remote SPI.
The Remote Security Parameter Index is a hexadecimal number of up to eight digits
(digits can be 0 to 9, a to f) in the range bb8 to FFFFFFF. This number must be added
to the Local SPI at the opposite end of the tunnel.
Enter the Remote Gateway.
This is the external IP address of the FortiGate unit or other IPSec gateway at the
opposite end of the tunnel.
7
8
Select an Encryption Algorithm from the list.
Use the same algorithm at both ends of the tunnel.
Enter the Encryption Key.
Each two-character combination entered in hexadecimal format represents one byte.
Depending on the encryption algorithm that you select, you might be required to enter
the key in multiple segments. Use the same encryption key at both ends of the tunnel.
DES
Enter a 16-character (8 byte) hexadecimal number (0-9, A-F).
3DES
Enter a 48-character (24 byte) hexadecimal number (0-9, A-F). Separate the
number into three segments of 16 characters.
AES128
AES192
AES256
Enter a 32-character (16 byte) hexadecimal number (0-9, A-F). Separate the
number into two segments of 16 characters.
Enter a 48-character (24 byte) hexadecimal number (0-9, A-F). Separate the
number into three segments of 16 characters.
Enter a 64-character (32 byte) hexadecimal number (0-9, A-F). Separate the
number into four segments of 16 characters.
9
Select an Authentication Algorithm from the list.
Use the same algorithm at both ends of the tunnel.
10
Enter the Authentication Key.
Each two-character combination entered in hexadecimal format represents one byte.
Use the same authentication key at both ends of the tunnel.
MD5
Enter a 32-character (16 byte) hexadecimal number (0-9, A-F). Separate the
number into two segments of 16 characters.
SHA1
Enter a 40-character (20 byte) hexadecimal number (0-9, A-F). Separate the
number into two segments—the first of 16 characters; the second of 24
characters.
11
12
Select a concentrator if you want the tunnel to be part of a hub and spoke VPN
Select OK to save the manual key VPN tunnel.
234
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
AutoIKE IPSec VPNs
AutoIKE IPSec VPNs
FortiGate units support two methods of Automatic Internet Key Exchange (AutoIKE)
for establishing IPSec VPN tunnels: AutoIKE with pre-shared keys and AutoIKE with
digital certificates.
•
•
•
General configuration steps for an AutoIKE VPN
An AutoIKE VPN configuration consists of phase 1 and phase 2 configuration
parameters, the source and destination addresses for both ends of the tunnel, and an
encrypt policy to control access to the VPN tunnel.
To create an AutoIKE VPN configuration
Note: Prior to configuring an AutoIKE VPN that uses digital certificates, you must add the CA
and local certificates to the FortiGate unit. For information about digital certificates, see
1
2
3
Add the phase 1 parameters. See “Adding a phase 1 configuration for an AutoIKE
Add the phase 2 parameters. See “Adding a phase 2 configuration for an AutoIKE
Configure an encrypt policy that includes the tunnel, source address, and destination
Adding a phase 1 configuration for an AutoIKE VPN
When you add a phase 1 configuration, you define the terms by which the FortiGate
unit and a remote VPN peer (gateway or client) authenticate themselves to each other
prior to establishing an IPSec VPN tunnel.
The phase 1 configuration is related to the phase 2 configuration. In phase 1 the VPN
peers are authenticated; in phase 2 the tunnel is established. You have the option to
use the same phase 1 parameters to establish multiple tunnels. In other words, the
same remote VPN peer (gateway or client) can have multiple tunnels to the local VPN
peer (the FortiGate unit).
When the FortiGate unit receives an IPSec VPN connection request, it authenticates
the VPN peers according to the phase 1 parameters. Then, depending on the source
and destination addresses of the request, it starts an IPSec VPN tunnel and applies
an encrypt policy.
To add a phase 1 configuration
1
2
Go to VPN > IPSEC > Phase 1.
Select New to add a new phase 1 configuration.
FortiGate-800 Installation and Configuration Guide
235
Download from Www.Somanuals.com. All Manuals Search And Download.
AutoIKE IPSec VPNs
IPSec VPN
3
4
Type a Gateway Name for the remote VPN peer.
The remote VPN peer can be either a gateway to another network or an individual
client on the Internet.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
Select a Remote Gateway address type.
•
•
If the remote VPN peer has a static IP address, select Static IP Address.
If the remote VPN peer has a dynamically assigned IP address (DHCP or PPPoE),
or if the remote VPN peer has a static IP address that is not required in the peer
identification process, select Dialup User.
Depending on the Remote Gateway address type you selected, other fields become
available.
Remote Gateway: Static IP Address
IP Address
If you select Static IP Address, the IP Address field appears. Enter the IP
address of the remote IPSec VPN gateway or client that can connect to the
FortiGate unit. This is a mandatory entry.
Remote Gateway: Dialup User
Peer Options
If you select Dialup User, the Peer Options become available under
Advanced Options. Use the Peer Options to authenticate remote VPN
peers with peer IDs during phase 1 negotiations.
5
6
Select Aggressive or Main (ID Protection) mode.
When using aggressive mode, the VPN peers exchange identifying information in the
clear. When using main mode, identifying information is hidden.
The VPN peers must use the same mode.
Configure the P1 Proposal.
Select up to three encryption and authentication algorithm combinations to propose
for phase 1.
The VPN peers must use the same P1 proposal settings.
7
8
Select the DH Group(s).
Select one or more Diffie-Hellman groups to propose for phase 1.
As a general rule, the VPN peers should use the same DH Group settings.
Enter the Keylife.
The keylife is the amount of time in seconds before the phase 1 encryption key
expires. When the key expires, a new key is generated without interrupting service.
P1 proposal keylife can be from 120 to 172,800 seconds.
9
For Authentication Method, select Preshared Key or RSA Signature.
•
Preshared Key: Enter a key that is shared by the VPN peers. The key must contain
at least 6 printable characters and should only be known by network
administrators. For optimum protection against currently known attacks, make sure
the key consists of a minimum of 16 randomly chosen alphanumeric characters.
•
RSA Signature: Select a local certificate that has been digitally signed by the
certificate authority (CA). To add a local certificate to the FortiGate unit, see
236
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
AutoIKE IPSec VPNs
10
Configure the Local ID the that the FortiGate unit sends to the remote VPN peer.
•
Preshared key: If the FortiGate unit is functioning as a client and uses its ID to
authenticate itself to the remote VPN peer, enter an ID. If no ID is specified, the
FortiGate unit transmits its IP address.
•
RSA Signature: No entry is required because the Local ID field contains the
Distinguished Name (DN) of the certificate associated with this phase 1
configuration. The DN identifies the owner of the certificate and includes, as a
minimum, a Common Name (CN). The DN is transmitted in place of an ID or IP
address.
Configuring advanced options
To configure phase 1 advanced options
1
2
Select Advanced Options.
Select a Peer Option if you want to authenticate remote VPN peers by the ID that they
transmit during phase 1.
Accept any peer ID
Accept this peer ID
Select to accept any peer ID (and therefore not authenticate
remote VPN peers by peer ID).
Select to authenticate a specific VPN peer or a group of VPN
peers with a shared user name (ID) and password (pre-
shared key). Also add the peer ID.
Accept peer ID in dialup group Select to authenticate each remote VPN peer with a unique
user name (ID) and password (pre-shared key). Also select
a dialup group (user group).
Configure the user group prior to configuring this peer
option.
3
Optionally, configure XAuth.
XAuth (IKE eXtended Authentication) authenticates VPN peers at the user level. If the
the FortiGate unit (the local VPN peer) is configured as an XAuth server, it
authenticates remote VPN peers by referring to a user group. The users contained in
the user group can be configured locally on the FortiGate unit or on remotely located
LDAP or RADIUS servers. If the FortiGate unit is configured as an XAuth client, it
provides a user name and password when it is challenged.
XAuth: Enable as a Client
Name
Enter the user name the local VPN peer uses to authenticate itself to the
remote VPN peer.
Password
Enter the password the local VPN peer uses to authenticate itself to the
remote VPN peer.
FortiGate-800 Installation and Configuration Guide
237
Download from Www.Somanuals.com. All Manuals Search And Download.
AutoIKE IPSec VPNs
IPSec VPN
XAuth: Enable as a Server
Encryption
method
Select the encryption method used between the XAuth client, the FortiGate
unit and the authentication server.
PAP— Password Authentication Protocol.
CHAP—Challenge-Handshake Authentication Protocol.
MIXED—Select MIXED to use PAP between the XAuth client and the
FortiGate unit, and CHAP between the FortiGate unit and the
authentication server.
Use CHAP whenever possible. Use PAP if the authentication server does
not support CHAP. (Use PAP with all implementations of LDAP and some
implementations of Microsoft RADIUS). Use MIXED if the authentication
server supports CHAP but the XAuth client does not. (Use MIXED with the
Fortinet Remote VPN Client.).
Usergroup
Select a group of users to be authenticated by XAuth. The individual users
within the group can be authenticated locally or by one or more LDAP or
RADIUS servers.
The user group must be added to the FortiGate configuration before it can
be selected here.
4
Optionally, configure NAT Traversal.
Enable
Select Enable if you expect the IPSec VPN traffic to go through a gateway
that performs NAT. If no NAT device is detected, enabling NAT traversal
has no effect. Both ends of the VPN (both VPN peers) must have the same
NAT traversal setting.
Keepalive
Frequency
If you enable NAT-traversal, you can change the number of seconds in the
Keepalive Frequency field. This number specifies, in seconds, how
frequently empty UDP packets are sent through the NAT device to ensure
that the NAT mapping does not change until P1 and P2 keylife expires. The
keepalive frequency can be from 0 to 900 seconds.
5
Optionally, configure Dead Peer Detection.
Use these settings to monitor the status of the connection between VPN peers. DPD
allows dead connections to be cleaned up and new VPN tunnels established. DPD is
not supported by all vendors.
Enable
Select Enable to enable DPD between the local and remote peers.
Short Idle
Set the time, in seconds, that a link must remain unused before the local
VPN peer considers it to be idle. After this period of time expires, whenever
the local peer sends traffic to the remote VPN peer it also sends a DPD
probe to determine the status of the link. To control the length of time that
the FortiGate unit takes to detect a dead peer with DPD probes, configure
the Retry Count and the Retry Interval.
Retry Count
Set the number of times that the local VPN peer retries the DPD probe
before it considers the channel to be dead and tears down the security
association (SA). To avoid false negatives because of congestion or other
transient failures, set the retry count to a sufficiently high value for your
network.
Retry Interval
Long Idle
Set the time, in seconds, that the local VPN peer unit waits between
retrying DPD probes.
Set the time, in seconds, that a link must remain unused before the local
VPN peer pro-actively probes its state. After this period of time expires, the
local peer sends a DPD probe to determine the status of the link even if
there is no traffic between the local peer and the remote peer.
6
Select OK to save the phase 1 parameters.
238
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
AutoIKE IPSec VPNs
Figure 56: Adding a phase 1 configuration (Standard options)
Figure 57: Adding a phase 1 configuration (Advanced options)
FortiGate-800 Installation and Configuration Guide
239
Download from Www.Somanuals.com. All Manuals Search And Download.
AutoIKE IPSec VPNs
IPSec VPN
Adding a phase 2 configuration for an AutoIKE VPN
Add a phase 2 configuration to specify the parameters used to create and maintain a
VPN tunnel between the local VPN peer (the FortiGate unit) and the remote VPN peer
(the VPN gateway or client).
Note: Adding a Phase 2 configuration is the same for pre-shared key and certification VPNs.
To add a phase 2 configuration
Go to VPN > IPSEC > Phase 2.
Select New to add a new phase 2 configuration.
Enter a Tunnel Name.
1
2
3
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
Select a Remote Gateway to associate with the VPN tunnel.
A remote gateway can be either a gateway to another network or an individual client
on the Internet. Remote gateways are added as part of the phase 1 configuration. For
Choose either a single DIALUP remote gateway, or up to three STATIC remote
gateways. Multiple STATIC remote gateways are necessary if you are configuring
IPSec redundancy. For information about IPSec redundancy, see “Redundant IPSec
5
6
Configure the P2 Proposal.
Select up to three encryption and authentication algorithm combinations to propose
for phase 2.
The VPN peers must use the same P2 proposal settings.
Optionally, enable Replay Detection.
Replay detection protects the VPN tunnel from replay attacks.
Note: Do not select replay detection if you have also selected Null Authentication for the P2
Proposal.
7
Optionally, enable Perfect Forward Secrecy (PFS).
PFS improves security by forcing a new Diffie-Hellman exchange whenever keylife
expires.
8
9
Select the DH Group(s).
The VPN peers must use the same DH Group settings.
Enter the Keylife.
The keylife causes the phase 2 key to expire after a specified time, after a specified
number of Kbytes of data have been processed by the VPN tunnel, or both. If you
select both, the key does not expire until both the time has passed and the number of
Kbytes have been processed.
When the key expires, a new key is generated without interrupting service. P2
proposal keylife can be from 120 to 172800 seconds or from 5120 to 99999 Kbytes.
240
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
AutoIKE IPSec VPNs
10
11
Enable Autokey Keep Alive if you want to keep the VPN tunnel running even if no data
is being processed.
Select a concentrator if you want the tunnel to be part of a hub and spoke VPN
configuration.
to a concentrator, the next time you open the tunnel, the Concentrator field displays
the name of the concentrator to which you added the tunnel.
12
Select a Quick Mode Identity.
Use selectors from policy
Select this option for policy-based VPNs. A policy-based
VPN uses an encrypt policy to select which VPN tunnel to
use for the connection. In this configuration, the VPN tunnel
is referenced directly from the encrypt policy.
You must select this option if both VPN peers are FortiGate
units.
Use wildcard selectors
Select this option for routing-based VPNs. A routing-based
VPN uses routing information to select which VPN tunnel to
use for the connection. In this configuration, the tunnel is
referenced indirectly by a route that points to a tunnel
interface.
You must select this option if the remote VPN peer is a non-
FortiGate unit that has been configured to operate in tunnel
interface mode.
13
Select OK to save the AutoIKE key VPN tunnel.
Figure 58: Adding a phase 2 configuration
FortiGate-800 Installation and Configuration Guide
241
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing digital certificates
IPSec VPN
Managing digital certificates
Use digital certificates to make sure that both participants in an IPSec communication
session are trustworthy, prior to setting up an encrypted VPN tunnel between the
participants.
Fortinet uses a manual procedure to obtain certificates. This involves copying and
pasting text files from your local computer to the certificate authority, and from the
certificate authority to your local computer.
•
•
Note: Digital certificates are not required for configuring FortiGate VPNs. Digital certificates are
an advanced feature provided for the convenience of system administrators. This manual
assumes the user has prior knowledge of how to configure digital certificates for their
implementation.
Obtaining a signed local certificate
The signed local certificate provides the FortiGate unit with a means to authenticate
itself to other devices.
Note: The VPN peers must use digital certificates that adhere to the X.509 standard.
Generating the certificate request
With this procedure, you generate a private and public key pair. The public key is the
base component of the certificate request.
To generate the certificate request
Go to VPN > Certificates > Local Certificates.
Select Generate.
1
2
3
Type a Certificate Name.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
Configure the Subject Information that identifies the object being certified.
Preferably use an IP address or domain name. If this is impossible (such as with a
dialup client), use an email address.
Host IP
For Host IP, enter the IP address of the FortiGate unit being certified.
Domain Name
For Domain name, enter the fully qualified domain name of the FortiGate
unit being certified. Do not include the protocol specification (http://) or
any port number or path names.
E-Mail
For E-mail, enter the email address of the owner of the FortiGate unit
being certified. Typically, e-mail addresses are entered only for clients, not
gateways.
5
Configure the Optional Information to further identify the object being certified.
242
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Managing digital certificates
Organization Unit Enter a name that identifies the department or unit within the organization
that is requesting the certificate for the FortiGate unit (such as
Manufacturing or MF).
Organization
Enter the legal name of the organization that is requesting the certificate
for the FortiGate unit (such as Fortinet).
Locality
Enter the name of the city or town where the FortiGate unit is located
(such as Vancouver).
State/Province
Enter the name of the state or province where the FortiGate unit is located
(such as California or CA).
Country
e-mail
Select the country where the FortiGate unit is located.
Enter a contact email address for the FortiGate unit. Typically, email
addresses are entered only for clients, not gateways.
6
7
Configure the key.
Key Type
Key Size
Select RSA as the key encryption type. No other key type is supported.
Select 1024 Bit, 1536 Bit or 2048 Bit. Larger keys are slower to generate
but more secure. Not all IPSec VPN products support all three key sizes.
Select OK to generate the private and public key pair and the certificate request.
The private/public key pair are generated and the certificate request is displayed on
the Local Certificates list with a status of Pending.
Figure 59: Adding a Local Certificate
FortiGate-800 Installation and Configuration Guide
243
Download from Www.Somanuals.com. All Manuals Search And Download.
Managing digital certificates
IPSec VPN
Downloading the certificate request
Use the following procedure to download a certificate request from the FortiGate unit
to the management computer.
To download the certificate request
1
2
3
4
Go to VPN > Certificates > Local Certificates.
Select Download
Select Save.
to download the local certificate to the management computer.
Name the file and save it in a directory on the management computer.
After downloading the certificate request, you can submit it tor your CA so that your
CA can sign the certificate.
Importing the signed local certificate
With this procedure, you import the signed local certificate from the management
computer to the FortiGate unit.
To import the signed local certificate
Go to VPN > Certificates > Local Certificates.
Select Import.
1
2
3
Enter the path or browse to locate the signed local certificate on the management
computer.
4
Select OK.
The signed local certificate is displayed on the Local Certificates list with a status of
OK.
Backing up and restoring the local certificate and private key
When you back up a FortiGate configuration that includes IPSec VPN tunnels using
certificates, you must also back up the local certificate and private key in a password-
protected PKCS12 file. Before restoring the configuration, you must import the
PKCS12 file and set the local certificate name to the same that was in the original
configuration.
Public Key Cryptography Standard 12 (PKCS12) describes the syntax for securely
exchanging personal information.
Note: Use the execute vpn certificates keyCLI command to back up and restore the
local certificate and private key. For more information, see the FortiGate CLI Reference Guide.
244
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Configuring encrypt policies
Obtaining CA certificates
For the VPN peers to authenticate themselves to each other, they must both obtain a
CA certificate from the same certificate authority. The CA certificate provides the VPN
peers with a means to validate the digital certificates that they receive from other
devices.
The FortiGate unit obtains the CA certificate to validate the digital certificate that it
receives from the remote VPN peer. The remote VPN peer obtains the CA certificate
to validate the digital certificate that it receives from the FortiGate unit.
Note: The CA certificate must adhere to the X.509 standard.
Importing CA certificates
Import the CA certificate from the management computer to the FortiGate unit.
To import the CA certificate
1
2
3
4
Go to VPN > Certificates > CA Certificates.
Select Import.
Enter the path or browse to locate the CA certificate on the management computer.
Select OK.
The CA is displayed on the CA Certificates list.
The system assigns a unique name to each CA certificate. The names are numbered
consecutively (CA_Cert_1, CA_Cert_2, CA_Cert_3, and so on).
Configuring encrypt policies
A VPN connects the local, internal network to a remote, external network. The
principal role of the encrypt policy is to define (and limit) which addresses on these
networks can use the VPN.
A VPN requires only one encrypt policy to control both inbound and outbound
connections. Depending on how you configure it, the policy controls whether users on
your internal network can establish a tunnel to the remote network (the outbound
connection), and whether users on the remote network can establish a tunnel to your
internal network (the inbound connection). This flexibility allows one encrypt policy to
do the same function as two regular firewall policies.
Although the encrypt policy controls both incoming and outgoing connections, it must
always be configured as an outgoing policy. An outgoing policy has a source address
on an internal network and a destination address on an external network. The source
address identifies the addresses on the internal network that are part of the VPN. The
destination address identifies the addresses on the remote network that are part of the
VPN.
FortiGate-800 Installation and Configuration Guide
245
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring encrypt policies
IPSec VPN
Note: The destination address can be a VPN client address on the Internet or the address of a
network behind a remote VPN gateway.
In addition to defining membership in the VPN by address, you can configure the
encrypt policy for services such as DNS, FTP, and POP3, and to allow connections
according to a predefined schedule (by the time of the day or the day of the week,
month, or year). You can also configure the encrypt policy for:
•
•
•
Inbound NAT to translate the source of incoming packets.
Outbound NAT to translate the source address of outgoing packets.
Traffic shaping to control the bandwidth available to the VPN and the priority of the
VPN.
•
•
Content profiles to apply antivirus protection, web filtering, and email filtering to
web, file transfer, and email services in the VPN.
Logging so that the FortiGate unit logs all connections that use the VPN.
The policy must also include the VPN tunnel that you created to communicate with the
remote FortiGate VPN gateway. When users on your internal network attempt to
connect to the network behind the remote VPN gateway, the encrypt policy intercepts
the connection attempt and starts the VPN tunnel added to the policy. The tunnel uses
the remote gateway added to its configuration to connect to the remote VPN gateway.
When the remote VPN gateway receives the connection attempt, it checks its own
policy, gateway, and tunnel configuration. If the configuration is allowed, an IPSec
VPN tunnel is negotiated between the two VPN peers.
•
•
•
Adding a source address
The source address is located within the internal network of the local VPN peer. It can
be a single computer address or the address of a network.
To add a source address
Go to Firewall > Address.
Select an internal interface.
Select New to add an address.
1
2
3
4
Enter the Address Name, IP Address, and NetMask for a single computer or for an
entire subnetwork on an internal interface of the local VPN peer.
5
Select OK to save the source address.
246
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Configuring encrypt policies
Adding a destination address
The destination address can be a VPN client address on the Internet or the address of
a network behind a remote VPN gateway.
To add a destination address
Go to Firewall > Address.
Select an external interface.
Select New to add an address.
1
2
3
4
Enter the Address Name, IP Address, and NetMask for a single computer or for an
entire subnetwork on an internal interface of the remote VPN peer.
5
Select OK to save the destination address.
Adding an encrypt policy
To add an encrypt policy
1
2
3
4
5
6
Go to Firewall > Policy.
Select the policy list that you want to add the policy to (usually, Internal->External).
Select New to add a new policy.
Set Source to the source address.
Set Destination to the destination address.
Set Service to control the services allowed over the VPN connection.
You can select ANY to allow all supported services over the VPN connection or select
a specific service or service group to limit the services allowed over the VPN
connection.
7
8
Set Action to ENCRYPT.
Configure the ENCRYPT parameters.
FortiGate-800 Installation and Configuration Guide
247
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring encrypt policies
IPSec VPN
VPN Tunnel
Select an Auto Key tunnel for this encrypt policy.
Allow inbound Select Allow inbound to enable inbound users to connect to the source
address.
Allow outbound Select Allow outbound to enable outbound users to connect to the
destination address.
Inbound NAT
The FortiGate unit translates the source address of incoming packets to the
IP address of the FortiGate interface connected to the source address
network. Typically, this is an internal interface of the FortiGate unit.
Inbound NAT makes it impossible for local hosts to see the IP addresses of
remote hosts (hosts located on the network behind the remote VPN
gateway).
Outbound NAT The FortiGate unit translates the source address of outgoing packets to the
IP address of the FortiGate interface connected to the destination address
network. Typically, this is an external interface of the FortiGate unit.
Outbound NAT makes it impossible for remote hosts to see the IP
addresses of local hosts (hosts located on the network behind the local VPN
gateway).
If Outbound NAT is implemented, it is subject to these limitations:
Configure Outbound NAT only at one end of the tunnel.
The end that does not implement Outbound NAT requires an internal to
external policy that specifies the remote external interface as the
Destination (usually a public IP address).
The tunnel, and the traffic within the tunnel, can only be initiated at the end
that implements Outbound NAT.
For information about configuring the remaining policy settings, see “Adding firewall
9
Select OK to save the encrypt policy.
To make sure that the encrypt policy is matched for VPN connections, arrange the
encrypt policy above other policies with similar source and destination addresses and
services in the policy list.
248
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
IPSec VPN concentrators
Figure 60: Adding an encrypt policy
IPSec VPN concentrators
In a hub-and-spoke network, all VPN tunnels terminate at a single VPN peer called a
hub. The peers that connect to the hub are known as spokes. The hub functions as a
concentrator on the network, managing the VPN connections between the spokes.
The advantage of a hub-and-spoke network is that the spokes are simpler to configure
because they require fewer policy rules. Also, a hub-and-spoke network provides
some processing efficiencies, particularly on the spokes. The disadvantage of a hub-
and-spoke network is its reliance on a single peer to handle management of all VPNs.
If this peer fails, encrypted communication in the network is impossible.
A hub-and-spoke VPN network requires a special configuration. Setup varies
depending on the role of the VPN peer.
If the VPN peer is a FortiGate unit functioning as the hub, or concentrator, it requires a
VPN configuration connecting it to each spoke (AutoIKE phase 1 and 2 settings or
manual key settings, plus encrypt policies). It also requires a concentrator
configuration that groups the hub-and-spoke tunnels together. The concentrator
configuration defines the FortiGate unit as the hub in a hub-and-spoke network.
FortiGate-800 Installation and Configuration Guide
249
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN concentrators
IPSec VPN
If the VPN peer is one of the spokes, it requires a tunnel connecting it to the hub (but
not to the other spokes). It also requires policies that control its encrypted connections
to the other spokes and its non-encrypted connections to other networks, such as the
Internet.
•
•
•
VPN concentrator (hub) general configuration steps
A central FortiGate that is functioning as a hub requires the following configuration:
•
A tunnel (AutoIKE phase 1 and phase 2 configuration or manual key configuration)
for each spoke.
•
•
•
Destination addresses for each spoke.
A concentrator configuration.
An encrypt policy for each spoke.
To create a VPN concentrator configuration
1
Configure one of the following tunnels for each spoke:
•
•
A manual key tunnel consists of a name for the tunnel, the IP address of the spoke
(client or gateway) at the opposite end of the tunnel, and the encryption and
authentication algorithms to use for the tunnel.
An AutoIKE tunnel consists of phase 1 and phase 2 parameters. The phase 1
parameters include the name of the spoke (client or gateway), designation of how
the spoke receives its IP address (static or dialup), encryption and authentication
algorithms, and the authentication method (either pre-shared keys or PKI
certificates). The phase 2 parameters include the name of the tunnel, selection of
the spoke (client or gateway) configured in phase 1, encryption and authentication
algorithms, and a number of security parameters.
2
3
Add a destination address for each spoke. The destination address is the address of
the spoke (either a client on the Internet or a network located behind a gateway).
Add the concentrator configuration. This step groups the tunnels together on the
FortiGate unit. The tunnels link the hub to the spokes. The tunnels are added as part
of the AutoIKE phase 2 configuration or the manual key configuration.
Note: Add the concentrator configuration to the central FortiGate unit (the hub) after adding the
tunnels for all spokes.
4
Add an encrypt policy for each spoke. Encrypt policies control the direction of traffic
through the hub and allow inbound and outbound VPN connections between the hub
and the spokes. The encrypt policy for each spoke must include the tunnel name of
the spoke. The source address must be Internal_All. Use the following configuration
for the encrypt policies:
250
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
IPSec VPN concentrators
Source
Internal_All
Destination
Action
The VPN spoke address.
ENCRYPT
VPN Tunnel
The VPN spoke tunnel name.
Allow inbound Select allow inbound.
Allow outbound Select allow outbound
Inbound NAT
Select inbound NAT if required.
Outbound NAT Select outbound NAT if required.
Arrange the policies in the following order:
5
•
•
encrypt policies
default non-encrypt policy (Internal_All -> External_All)
Adding a VPN concentrator
To add a VPN concentrator configuration
1
2
3
4
Go to VPN > IPSec > Concentrator.
Select New to add a VPN concentrator.
Enter the name of the new concentrator in the Concentrator Name field.
To add tunnels to the VPN concentrator, select a VPN tunnel from the Available
Tunnels list and select the right arrow.
5
6
To remove tunnels from the VPN concentrator, select the tunnel in the Members list
and select the left arrow.
Select OK to add the VPN concentrator.
Figure 61: Adding a VPN concentrator
FortiGate-800 Installation and Configuration Guide
251
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN concentrators
IPSec VPN
VPN spoke general configuration steps
A remote VPN peer that functions as a spoke requires the following configuration:
•
A tunnel (AutoIKE phase 1 and phase 2 configuration or manual key configuration)
for the hub.
•
•
•
The source address of the local VPN spoke.
The destination address of each remote VPN spoke.
A separate outbound encrypt policy for each remote VPN spoke. These policies
allow the local VPN spoke to initiate encrypted connections.
•
A single inbound encrypt policy. This policy allows the local VPN spoke to accept
encrypted connections.
To create a VPN spoke configuration
1
Configure a tunnel between the spoke and the hub.
Choose between a manual key tunnel or an AutoIKE tunnel.
•
•
2
3
Add the source address. One source address is required for the local VPN spoke.
Add a destination address for each remote VPN spoke. The destination address is the
address of the spoke (either a client on the Internet or a network located behind a
gateway).
4
Add a separate outbound encrypt policy for each remote VPN spoke. These policies
control the encrypted connections initiated by the local VPN spoke.
The encrypt policy must include the appropriate source and destination addresses
and the tunnel added in step 1. Use the following configuration:
Source
The local VPN spoke address.
The remote VPN spoke address.
ENCRYPT
Destination
Action
VPN Tunnel
The VPN tunnel name added in step 1. (Use the same tunnel for all encrypt
policies.)
Allow inbound Do not enable.
Allow outbound Select allow outbound
Inbound NAT
Select inbound NAT if required.
Outbound NAT Select outbound NAT if required.
5
Add an inbound encrypt policy. This policy controls the encrypted connections initiated
by the remote VPN spokes.
The encrypt policy for the hub must include the appropriate source and destination
addresses and the tunnel added in step 1. Use the following configuration:
Source
The local VPN spoke address.
External_All
Destination
252
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Redundant IPSec VPNs
Action
ENCRYPT
VPN Tunnel
The VPN tunnel name added in step 1. (Use the same tunnel for all encrypt
policies.)
Allow inbound Select allow inbound.
Allow outbound Do not enable.
Inbound NAT
Select inbound NAT if required.
Outbound NAT Select outbound NAT if required.
Arrange the policies in the following order:
6
•
•
•
outbound encrypt policies
inbound encrypt policy
default non-encrypt policy (Internal_All -> External_All)
Note: The default non-encrypt policy is required to allow the VPN spoke to access other
networks, such as the Internet.
Redundant IPSec VPNs
To ensure the continuous availability of an IPSec VPN tunnel, you can configure
multiple connections between the local FortiGate unit and the remote VPN peer
(remote gateway). With a redundant configuration, if one connection fails the
FortiGate unit establishes a tunnel using the other connection.
The configuration depends on the number of connections that each VPN peer has to
the Internet. For example, if the local VPN peer has two connections to the Internet,
then it can provide two redundant connections to the remote VPN peer.
A single VPN peer can be configured with up to three redundant connections.
The VPN peers are not required to have a matching number of Internet connections.
For example, between two VPN peers, one peer can have multiple Internet
connections while the other has only one Internet connection. In the case of an
asymmetrical configuration, the level of redundancy varies from one end of the VPN to
the other.
Note: IPSec Redundancy is only available to VPN peers that have static IP addresses and that
authenticate themselves to each other with pre-shared keys or digital certificates. It is not
available to VPN peers that have dynamically assigned IP addresses (dialup users). Nor is it
available to VPN peers that use manual keys.
FortiGate-800 Installation and Configuration Guide
253
Download from Www.Somanuals.com. All Manuals Search And Download.
Redundant IPSec VPNs
IPSec VPN
Configuring redundant IPSec VPNs
Prior to configuring the VPN, make sure that both FortiGate units have multiple
connections to the Internet. For each unit, first add multiple (two or more) external
interfaces. Then assign each interface to an external zone. Finally, add a route to the
Internet through each interface.
Configure the two FortiGate units with symmetrical settings for their connections to the
Internet. For example, if the remote FortiGate unit has two external interfaces grouped
in one zone, then the local FortiGate unit should have two external interfaces grouped
in one zone. Similarly, if the remote FortiGate has two external interfaces in separate
zones, then the local FortiGate unit should have two external interfaces in separate
zones.
The configuration is simpler if all external interfaces are grouped in one zone, rather
than multiple zones. However, this might not always be possible because of security
considerations or other reasons.
After you define the Internet connections for both FortiGate units, you can configure
the VPN tunnel.
To configure a redundant IPSec VPN
1
2
Add the phase 1 parameters for up to three VPN connections.
Enter identical values for each VPN connection, with the exception of the Gateway
Name and IP Address. Make sure that the remote VPN peer (Remote Gateway) has a
static IP address.
Add the phase 2 parameters (VPN tunnel) for up to three VPN connections.
•
•
If the Internet connections are in the same zone, add one VPN tunnel and add the
remote gateways to it. You can add up to three remote gateways.
If the Internet connections are in separate zones or assigned to unique interfaces,
add a VPN tunnel for each remote gateway entered.
3
4
Add the source and destination addresses.
Add encrypt policies for up to three VPN connections.
•
If the VPN connections are in the same zone, add one outgoing encrypt policy; for
example an Internal->External policy. Add the AutoIKE key tunnel to this policy.
•
If the VPN connections are in different zones, add a separate outgoing encrypt
policy for each connection. The source and destination of both policies must be the
same. Add a different AutoIKE key tunnel to each policy.
254
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
IPSec VPN
Monitoring and Troubleshooting VPNs
Monitoring and Troubleshooting VPNs
•
•
•
Viewing VPN tunnel status
You can use the IPSec VPN tunnel list to view the status of all IPSec AutoIKE key
VPN tunnels. For each tunnel, the list shows the status and the tunnel time out.
To view VPN tunnel status
1
2
Go to VPN > IPSEC > Phase 2.
View the status and timeout for each VPN tunnel.
Status
The status of each tunnel. If Status is Up, the tunnel is active. If Status is
Down, the tunnel is not active. If Status is Connecting, the tunnel is
attempting to start a VPN connection with a remote VPN gateway or client.
The time before the next key exchange. The time is calculated by
subtracting the time elapsed since the last key exchange from the keylife.
Timeout
Figure 62: AutoIKE key tunnel status
Viewing dialup VPN connection status
You can use the dialup monitor to view the status of dialup VPNs. The dialup monitor
lists the remote gateways and the active VPN tunnels for each gateway. The monitor
also lists the tunnel lifetime, timeout, proxy ID source, and proxy ID destination for
each tunnel.
To view dialup connection status
1
2
Go to VPN > IPSec > Dialup Monitor.
View the dialup connection status information for the FortiGate unit:
Remote gateway The IP address of the remote dialup remote gateway on the FortiGate unit.
Lifetime
The amount of time that the dialup VPN connection has been active.
FortiGate-800 Installation and Configuration Guide
255
Download from Www.Somanuals.com. All Manuals Search And Download.
Monitoring and Troubleshooting VPNs
IPSec VPN
Timeout
The time before the next key exchange. The time is calculated by
subtracting the time elapsed since the last key exchange from the keylife.
Proxy ID Source The actual IP address or subnet address of the remote peer.
Proxy ID
The actual IP address or subnet address of the local peer.
Destination
Figure 63: Dialup Monitor
Testing a VPN
To confirm that a VPN between two networks has been configured correctly, use the
ping command from one internal network to connect to a computer on the other
internal network. The IPSec VPN tunnel starts automatically when the first data packet
destined for the VPN is intercepted by the FortiGate unit.
To confirm that a VPN between a network and one or more clients has been
configured correctly, start a VPN client and use the ping command to connect to a
computer on the internal network. The VPN tunnel initializes automatically when the
client makes a connection attempt. You can start the tunnel and test it at the same
time by pinging from the client to an address on the internal network.
256
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
PPTP and L2TP VPN
You can use PPTP and L2TP to create a virtual private network (VPN) between a
remote client computer that is running Windows and your internal network. Because
PPTP and L2TP are supported by Windows you do not require third-party software on
the client computer. Provided your ISP supports PPTP and L2TP connections, you
can create a secure connection by making some configuration changes to the client
computer and the FortiGate unit.
This chapter provides an overview of how to configure FortiGate PPTP and L2TP
VPN. For a complete description of FortiGate PPTP and L2TP, see the FortiGate VPN
Guide.
This chapter describes:
•
•
Configuring PPTP
Point-to-Point protocol (PPTP) packages data within PPP packets and then
encapsulates the PPP packets within IP packets for transmission through a VPN
tunnel.
Note: PPTP VPNs are supported only in NAT/Route mode.
This section describes:
•
•
•
•
FortiGate-800 Installation and Configuration Guide
257
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring PPTP
PPTP and L2TP VPN
Configuring the FortiGate unit as a PPTP gateway
Use the following procedures to configure the FortiGate unit as a PPTP gateway:
To add users and user groups
Add a user for each PPTP client.
Go to User > Local.
1
2
Add and configure PPTP users.
For information about adding and configuring users, see “Adding user names and
3
4
Go to User > User Group.
Add and configure PPTP user groups.
For information about adding and configuring user groups, see “Configuring user
To enable PPTP and specify an address range
Go to VPN > PPTP > PPTP Range.
1
2
3
4
5
Select Enable PPTP.
Enter the Starting IP and the Ending IP for the PPTP address range.
Select Apply to enable PPTP through the FortiGate unit.
Figure 64: Example PPTP Range configuration
To add a source address
Add a source address for every address in the PPTP address range.
Go to Firewall > Address.
1
2
Select the interface to which PPTP clients connect.
This can be an interface, VLAN subinterface, or zone.
258
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
PPTP and L2TP VPN
Configuring PPTP
3
4
Select New to add an address.
Enter the Address Name, IP Address, and NetMask for an address in the PPTP
address range.
5
6
Select OK to save the source address.
Repeat for all addresses in the PPTP address range.
Note: If the PPTP address range is comprised of an entire subnet, add an address for this
subnet. Do not add an address group.
To add a source address group
Organize the source addresses into an address group.
Go to Firewall > Address > Group.
1
2
Add a new address group to the interface to which PPTP clients connect.
This can be an interface, VLAN subinterface, or zone.
3
Enter a Group Name to identify the address group.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
6
To add addresses to the address group, select an address from the Available
Addresses list and select the right arrow to add it to the Members list.
To remove addresses from the address group, select an address from the Members
list and select the left arrow to remove it from the group.
Select OK to add the address group.
To add a destination address
Add an address to which PPTP users can connect.
Go to Firewall > Address.
1
2
3
4
Select the internal interface or the DMZ interface.
Select New to add an address.
Enter the Address Name, IP Address, and NetMask for a single computer or for an
entire subnetwork on an internal interface of the local VPN peer.
5
Select OK to save the destination address.
To add a firewall policy
Add a policy which specifies the source and destination addresses and sets the
service for the policy to the traffic type inside the PPTP VPN tunnel.
1
2
3
4
5
Go to Firewall > Policy.
Select the policy list that you want to add the policy to (usually, External->Internal).
Select New to add a new policy.
Set Source to the group that matches the PPTP address range.
Set Destination to the address to which PPTP users can connect.
FortiGate-800 Installation and Configuration Guide
259
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring PPTP
PPTP and L2TP VPN
6
Set Service to match the traffic type inside the PPTP VPN tunnel.
For example, if PPTP users can access a web server, select HTTP.
7
8
Set Action to ACCEPT.
Select NAT if address translation is required.
You can also configure traffic shaping, logging, and antivirus and web filter settings for
PPTP policies.
9
Select OK to save the firewall policy.
Configuring a Windows 98 client for PPTP
Use the following procedure to configure a client computer running Windows 98 so
that it can connect to a FortiGate PPTP VPN. To configure the Windows 98 client, you
must install and configure Windows dialup networking and virtual private networking
support.
To install PPTP support
1
2
3
4
5
6
7
8
9
Go to Start > Settings > Control Panel > Network.
Select Add.
Select Adapter.
Select Add.
Select Microsoft as the manufacturer.
Select Microsoft Virtual Private Networking Adapter.
Select OK twice.
Insert diskettes or CDs as required.
Restart the computer.
To configure a PPTP dialup connection
1
2
3
4
5
Go to My Computer > Dial-Up Networking > Configuration.
Double-click Make New Connection.
Name the connection and select Next.
Enter the IP address or host name of the FortiGate unit to connect to and select Next.
Select Finish.
An icon for the new connection appears in the Dial-Up Networking folder.
6
7
Right-click the new icon and select Properties.
Go to Server Types.
8
Uncheck IPX/SPX Compatible.
Select TCP/IP Settings.
9
10
11
12
Uncheck Use IP header compression.
Uncheck Use default gateway on remote network.
Select OK twice.
260
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
PPTP and L2TP VPN
Configuring PPTP
To connect to the PPTP VPN
1
2
3
Start the dialup connection that you configured in the previous procedure.
Enter your PPTP VPN User Name and Password.
Select Connect.
Configuring a Windows 2000 client for PPTP
Use the following procedure to configure a client computer running Windows 2000 so
that it can connect to a FortiGate PPTP VPN.
To configure a PPTP dialup connection
1
2
Go to Start > Settings > Network and Dial-up Connections.
Double-click Make New Connection to start the Network Connection Wizard and
select Next.
3
4
For Network Connection Type, select Connect to a private network through the
Internet and select Next.
For Destination Address, enter the IP address or host name of the FortiGate unit to
connect to and select Next.
5
6
Set Connection Availability to Only for myself and select Next.
Select Finish.
7
In the Connect window, select Properties.
Select the Security tab.
8
9
Uncheck Require data encryption.
Select OK.
10
To connect to the PPTP VPN
1
2
3
4
Start the dialup connection that you configured in the previous procedure.
Enter your PPTP VPN User Name and Password.
Select Connect.
In the connect window, enter the User Name and Password that you use to connect to
your dialup network connection.
This user name and password is not the same as your VPN user name and password.
Configuring a Windows XP client for PPTP
Use the following procedure to configure a client computer running Windows XP so
that it can connect to a FortiGate PPTP VPN.
To configure a PPTP dialup connection
1
2
3
4
Go to Start > Settings > Control Panel.
Select Network and Internet Connections.
Select Create a Connection to the network of your workplace and select Next.
Select Virtual Private Network Connection and select Next.
FortiGate-800 Installation and Configuration Guide
261
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring PPTP
PPTP and L2TP VPN
5
6
Name the connection and select Next.
If the Public Network dialog box appears, choose the appropriate initial connection
and select Next.
7
8
In the VPN Server Selection dialog, enter the IP address or host name of the
FortiGate unit to connect to and select Next.
Select Finish.
To configure the VPN connection
1
2
3
4
Right-click the Connection icon that you created in the previous procedure.
Select Properties > Security.
Select Typical to configure typical settings.
Select Require data encryption.
Note: If a RADIUS server is used for authentication do not select Require data encryption.
PPTP encryption is not supported for RADIUS server authentication.
5
6
Select Advanced to configure advanced settings.
Select Settings.
7
Select Challenge Handshake Authentication Protocol (CHAP).
Make sure that none of the other settings are selected.
Select the Networking tab.
8
9
10
Make sure that the following options are selected:
•
•
TCP/IP
QoS Packet Scheduler
11
12
Make sure that the following options are not selected:
•
•
File and Printer Sharing for Microsoft Networks
Client for Microsoft Networks
Select OK.
To connect to the PPTP VPN
1
2
3
4
5
Connect to your ISP.
Start the VPN connection that you configured in the previous procedure.
Enter your PPTP VPN User Name and Password.
Select Connect.
In the connect window, enter the User Name and Password that you use for your
dialup network connection.
This user name and password is not the same as your VPN user name and password.
262
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
PPTP and L2TP VPN
Configuring L2TP
Configuring L2TP
Some implementations of L2TP support elements of IPSec. These elements must be
disabled when L2TP is used with a FortiGate unit.
Note: L2TP VPNs are only supported in NAT/Route mode.
This section describes:
•
•
•
Configuring the FortiGate unit as an L2TP gateway
Use the following procedures to configure the FortiGate unit as an L2TP gateway:
To add users and user groups
Add a user for each L2TP client.
Go to User > Local.
1
2
Add and configure L2TP users.
3
4
Go to User > User Group.
Add and configure L2TP user groups.
To enable L2TP and specify an address range
Go to VPN > L2TP > L2TP Range.
1
2
3
4
5
Select Enable L2TP.
Enter the Starting IP and the Ending IP for the L2TP address range.
Select Apply to enable L2TP through the FortiGate unit.
FortiGate-800 Installation and Configuration Guide
263
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring L2TP
PPTP and L2TP VPN
Figure 65: Sample L2TP address range configuration
To add source addresses
Add a source address for every address in the L2TP address range.
1
2
Go to Firewall > Address.
Select the interface to which L2TP clients connect.
This can be an interface, VLAN subinterface, or zone.
3
1
Select New to add an address.
Enter the Address Name, IP Address, and NetMask for an address in the L2TP
address range.
2
3
Select OK to save the source address.
Repeat for all addresses in the L2TP address range.
Note: If the L2TP address range is comprised of an entire subnet, add an address for this
subnet. Do not add an address group.
To add a source address group
Organize the source addresses into an address group.
Go to Firewall > Address > Group.
1
2
Add a new address group to the interface to which L2TP clients connect.
This can be an interface, VLAN subinterface, or zone.
3
Enter a Group Name to identify the address group.
The name can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z), and
the special characters - and _. Other special characters and spaces are not allowed.
4
5
To add addresses to the address group, select an address from the Available
Addresses list and select the right arrow to add it to the Members list.
To remove addresses from the address group, select an address from the Members
list and select the left arrow to remove it from the group.
264
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
PPTP and L2TP VPN
Configuring L2TP
6
Select OK to add the address group.
To add a destination address
Add an address to which L2TP users can connect.
Go to Firewall > Address.
1
2
3
4
Select the internal interface or the DMZ interface.
Select New to add an address.
Enter the Address Name, IP Address, and NetMask for a single computer or for an
entire subnetwork on an internal interface of the local VPN peer.
5
Select OK to save the source address.
To add a firewall policy
Add a policy that specifies the source and destination addresses and sets the service
for the policy to the traffic type inside the L2TP VPN tunnel.
1
2
3
4
5
6
Go to Firewall > Policy.
Select the policy list that you want to add the policy to (usually, External->Internal).
Select New to add a policy.
Set Source to the group that matches the L2TP address range.
Set Destination to the address to which L2TP users can connect.
Set Service to match the traffic type inside the L2TP VPN tunnel.
For example, if L2TP users can access a web server, select HTTP.
7
8
Set Action to ACCEPT.
Select NAT if address translation is required.
You can also configure traffic shaping, logging, and antivirus and web filter settings for
L2TP policies.
9
Select OK to save the firewall policy.
Configuring a Windows 2000 client for L2TP
Use the following procedure to configure a client computer running Windows 2000 so
that it can connect to a FortiGate L2TP VPN.
To configure an L2TP dialup connection
1
2
Go to Start > Settings > Network and Dial-up Connections.
Double-click Make New Connection to start the Network Connection Wizard and
select Next.
3
4
For Network Connection Type, select Connect to a private network through the
Internet and select Next.
For Destination Address, enter the address of the FortiGate unit to connect to and
select Next.
5
6
Set Connection Availability to Only for myself and select Next.
Select Finish.
FortiGate-800 Installation and Configuration Guide
265
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring L2TP
PPTP and L2TP VPN
7
8
9
In the Connect window, select Properties.
Select the Security tab.
Make sure that Require data encryption is selected.
Note: If a RADIUS server is used for authentication do not select Require data encryption.
L2TP encryption is not supported for RADIUS server authentication.
10
11
12
Select the Networking tab.
Set VPN server type to Layer-2 Tunneling Protocol (L2TP).
Save the changes and continue with the following procedure.
To disable IPSec
1
2
3
4
5
6
Select the Networking tab.
Select Internet Protocol (TCP/IP) properties.
Double-click the Advanced tab.
Go to the Options tab and select IP security properties.
Make sure that Do not use IPSEC is selected.
Select OK and close the connection properties window.
Note: The default Windows 2000 L2TP traffic policy does not allow L2TP traffic without IPSec
encryption. You can disable default behavior by editing the Windows 2000 Registry as
described in the following steps. See the Microsoft documentation for editing the Windows
Registry.
7
8
Use the registry editor (regedit) to locate the following key in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman\
Parameters
Add the following registry value to this key:
Value Name: ProhibitIpSec
Data Type: REG_DWORD
Value: 1
9
Save the changes and restart the computer for the changes to take effect.
You must add the ProhibitIpSecregistry value to each Windows 2000-based
endpoint computer of an L2TP or IPSec connection to prevent the automatic filter for
L2TP and IPSec traffic from being created. When the ProhibitIpSecregistry value
is set to 1, your Windows 2000-based computer does not create the automatic filter
that uses CA authentication. Instead, it checks for a local or active directory IPSec
policy.
To connect to the L2TP VPN
1
2
3
Start the dialup connection that you configured in the previous procedure.
Enter your L2TP VPN User Name and Password.
Select Connect.
266
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
PPTP and L2TP VPN
Configuring L2TP
4
In the connect window, enter the User Name and Password that you use to connect to
your dialup network connection.
This user name and password is not the same as your VPN user name and password.
Configuring a Windows XP client for L2TP
Use the following procedure to configure a client computer running Windows XP so
that it can connect to a FortiGate L2TP VPN.
To configure an L2TP VPN dialup connection
Go to Start > Settings.
1
2
3
4
5
6
Select Network and Internet Connections.
Select Create a connection to the network of your workplace and select Next.
Select Virtual Private Network Connection and select Next.
Name the connection and select Next.
If the Public Network dialog box appears, choose the appropriate initial connection
and select Next.
7
8
In the VPN Server Selection dialog, enter the IP address or host name of the
FortiGate unit to connect to and select Next.
Select Finish.
To configure the VPN connection
Right-click the icon that you created.
Select Properties > Security.
1
2
3
4
Select Typical to configure typical settings.
Select Require data encryption.
Note: If a RADIUS server is used for authentication do not select Require data encryption.
L2TP encryption is not supported for RADIUS server authentication.
5
6
Select Advanced to configure advanced settings.
Select Settings.
7
Select Challenge Handshake Authentication Protocol (CHAP).
Make sure that none of the other settings are selected.
Select the Networking tab.
8
9
10
Make sure that the following options are selected:
•
•
TCP/IP
QoS Packet Scheduler
11
Make sure that the following options are not selected:
•
•
File and Printer Sharing for Microsoft Networks
Client for Microsoft Networks
FortiGate-800 Installation and Configuration Guide
267
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring L2TP
PPTP and L2TP VPN
To disable IPSec
1
2
3
4
5
6
Select the Networking tab.
Select Internet Protocol (TCP/IP) properties.
Double-click the Advanced tab.
Go to the Options tab and select IP security properties.
Make sure that Do not use IPSEC is selected.
Select OK and close the connection properties window.
Note: The default Windows XP L2TP traffic policy does not allow L2TP traffic without IPSec
encryption. You can disable default behavior by editing the Windows XP Registry as described
in the following steps. See the Microsoft documentation for editing the Windows Registry.
7
8
Use the registry editor (regedit) to locate the following key in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman\
Parameters
Add the following registry value to this key:
Value Name: ProhibitIpSec
Data Type: REG_DWORD
Value: 1
9
Save the changes and restart the computer for the changes to take effect.
You must add the ProhibitIpSecregistry value to each Windows XP-based
endpoint computer of an L2TP or IPSec connection to prevent the automatic filter for
L2TP and IPSec traffic from being created. When the ProhibitIpSecregistry value
is set to 1, your Windows XP-based computer does not create the automatic filter that
uses CA authentication. Instead, it checks for a local or active directory IPSec policy.
To connect to the L2TP VPN
1
2
3
4
5
Connect to your ISP.
Start the VPN connection that you configured in the previous procedure.
Enter your L2TP VPN User Name and Password.
Select Connect.
In the connect window, enter the User Name and Password that you use to connect to
your dialup network connection.
This user name and password is not the same as your VPN user name and password.
268
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Network Intrusion Detection System
(NIDS)
The FortiGate NIDS is a real-time network intrusion detection sensor that uses attack
signature definitions to both detect and prevent a wide variety of suspicious network
traffic and direct network-based attacks. Also, whenever an attack occurs, the
FortiGate NIDS can record the event in a log and send an alert email to the system
administrator.
This chapter describes:
•
•
•
Detecting attacks
The NIDS Detection module detects a wide variety of suspicious network traffic and
network-based attacks. Use the following procedures to configure the general NIDS
settings and the NIDS Detection module Signature List.
For the general NIDS settings, you must select which interfaces you want to be
monitored for network-based attacks. You also need to decide whether to enable
checksum verification. Checksum verification tests the integrity of packets received at
the monitored interfaces.
This section describes:
•
•
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
269
Download from Www.Somanuals.com. All Manuals Search And Download.
Detecting attacks
Network Intrusion Detection System (NIDS)
Selecting the interfaces to monitor
To select the interfaces to monitor for attacks
Go to NIDS > Detection > General.
1
2
Select the interfaces to monitor for network attacks.
You can select up to a total of 4 interfaces and VLAN subinterfaces.
3
Select Apply.
Disabling monitoring interfaces
To disable monitoring interfaces for attacks
1
2
3
Go to NIDS > Detection > General.
Clear the check box for all the interfaces that you do not want monitored.
Select Apply.
Configuring checksum verification
Checksum verification tests the files that pass through the FortiGate unit to make sure
that they have not been changed in transit. The NIDS can run checksum verification
on IP, TCP, UDP, and ICMP traffic. For maximum detection, you can turn on checksum
verification for all types of traffic. However, if the FortiGate unit does not need to run
checksum verification, you can turn it off for some or all types of traffic to improve
system performance. For example, you might not need to run checksum verification if
the FortiGate unit is installed behind a router that also does checksum verification.
To configure checksum verification
Go to NIDS > Detection > General.
1
2
3
Select the type of traffic that you want to run Checksum Verifications on.
Select Apply.
Figure 66: Example NIDS detection configuration
270
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network Intrusion Detection System (NIDS)
Detecting attacks
Viewing the signature list
You can display the current list of NIDS signature groups and the members of a
signature group.
To view the signature list
1
2
Go to NIDS > Detection > Signature List.
View the names and action status of the signature groups in the list.
The NIDS detects attacks listed in all the signature groups that have check marks in
the Enable column.
3
Select View Details
.to display the members of a signature group.
The Signature Group Members list displays the attack ID, Rule Name, and Revision
number for each group member.
Viewing attack descriptions
Fortinet provides online information for all NIDS attacks. You can view the
FortiResponse Attack Analysis web page for an attack listed on the signature list.
To view attack descriptions
1
2
3
4
Go to NIDS > Detection > Signature List.
Select View Details
.to display the members of a signature group.
Select a signature and copy its attack ID.
Open a web browser and enter the following URL:
http://www.fortinet.com/ids/ID<attack-ID>
Make sure that you include the attack ID.
For example, to view the Fortinet Attack Analysis web page for the ssh CRC32
overflow /bin/shattack (ID 101646338), use the following URL:
Note: Each attack log message includes a URL that links directly to the FortiResponse Attack
Analysis web page for that attack. This URL is available in the Attack Log messages and Alert
email messages. For information about log message content and formats, and about log
locations, see the FortiGate Logging and Message Reference Guide. For information about
FortiGate-800 Installation and Configuration Guide
271
Download from Www.Somanuals.com. All Manuals Search And Download.
Detecting attacks
Network Intrusion Detection System (NIDS)
Figure 67: Example signature group members list
Disabling NIDS attack signatures
By default, all NIDS attack signatures are enabled. You can use the NIDS signature
list to disable detection of some attacks. Disabling unnecessary NIDS attack
signatures can improve system performance and reduce the number of IDS log
messages and alert emails that the NIDS generates. For example, the NIDS detects a
large number of web server attacks. If you do not provide access to a web server
behind your firewall, you might want to disable all web server attack signatures.
Note: To save your NIDS attack signature settings, Fortinet recommends that you back up your
FortiGate configuration before you update the firmware and restore the saved configuration
after the update.
To disable NIDS attack signatures
1
2
Go to NIDS > Detection > Signature List.
Scroll through the signature list to find the signature group that you want to disable.
Attack ID numbers and rule names in attack log messages and alert email match
those in the signature group members list. You can scroll through a signature group
members list to locate specific attack signatures by ID number and name.
3
4
5
Clear the Enable check box.
Select OK.
Repeat steps 2 to 4 for each NIDS attack signature group that you want to disable.
Select Check All
to enable all NIDS attack signature groups in the signature list.
to disable all NIDS attack signature groups in the signature
Select Uncheck All
list.
Adding user-defined signatures
You can create a user-defined signature list in a text file and upload it from the
management computer to the FortiGate unit.
Note: You cannot upload individual signatures. You must include, in a single text file, all the
user-defined signatures that you want to upload. The file can contain one or more signatures.
For information about how to write user-defined signatures, see the FortiGate NIDS
Guide.
272
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network Intrusion Detection System (NIDS)
Detecting attacks
To add user-defined signatures
Go to NIDS > Detection > User Defined Signature List.
Select Upload
1
2
.
Caution: Uploading the user-defined signature list overwrites the existing file.
!
3
Type the path and filename of the text file for the user-defined signature list or select
Browse and locate the file.
4
5
Select OK to upload the text file for the user-defined signature list.
Select Return to display the uploaded user-defined signature list.
Figure 68: Example user-defined signature list
Downloading the user-defined signature list
You can back up the user-defined signature list by downloading it to a text file on the
management computer.
Note: You cannot download individual signatures. You must download the entire user-defined
signature list.
To download the user-defined signature list
Go to NIDS > Detection > User Defined Signature List.
Select Download.
1
2
The FortiGate unit downloads the user-defined signature list to a text file on the
management computer. You can specify a location to which to download the text file
as well as a name for the text file.
FortiGate-800 Installation and Configuration Guide
273
Download from Www.Somanuals.com. All Manuals Search And Download.
Preventing attacks
Network Intrusion Detection System (NIDS)
Preventing attacks
NIDS attack prevention protects the FortiGate unit and the networks connected to it
from common TCP, ICMP, UDP, and IP attacks. You can enable NIDS attack
prevention to prevent a set of default attacks with default threshold values. You can
also enable or disable and set the threshold values for individual attack prevention
signatures.
Note: After the FortiGate unit reboots, NIDS attack prevention and synflood prevention are
always disabled.
•
•
•
Enabling NIDS attack prevention
To enable NIDS attack prevention
Go to NIDS > Prevention.
Select the Enable Prevention check box, in the top left corner.
1
2
Enabling NIDS attack prevention signatures
The NIDS Prevention module contains signatures that are designed to protect your
network against attacks. Some signatures are enabled by default, others must be
enabled. For a complete list of NIDS Prevention signatures and descriptions, see the
FortiGate NIDS Guide.
To enable attack prevention signatures
1
2
3
Go to NIDS > Prevention.
Select the Enable check box beside each signature that you want to enable.
Select Check All
list.
to enable all signatures in the NIDS attack prevention signature
4
5
Select Uncheck All
signature list.
to disable all signatures in the NIDS attack prevention
Select Reset to Default Values
to enable only the default NIDS attack prevention
signatures and return to the default threshold values.
274
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network Intrusion Detection System (NIDS)
Preventing attacks
Setting signature threshold values
You can change the default threshold values for the NIDS Prevention signatures listed
in Table 40. The threshold depends on the type of attack. For flooding attacks, the
threshold is the maximum number of packets received per second. For overflow
attacks, the threshold is the buffer size for the command. For large ICMP attacks, the
threshold is the ICMP packet size limit to pass through.
For example, setting the icmpflood signature threshold to 500 allows 500 echo
requests from a source address, to which the system sends echo replies. The
FortiGate unit drops any requests over the threshold of 500.
If you enter a threshold value of 0 or a number out of the allowable range, the
FortiGate unit uses the default value.
Table 40: NIDS Prevention signatures with threshold values
Signature
Threshold value units
Default
Minimum Maximum
abbreviation
threshold threshold threshold
value
value
value
synflood
Threshold: Maximum number of SYN
segments received per second.
2048
1
1000000
Queue Size: Maximum proxied
connections.
4096
15
100
1
1000000
3600
Timeout: Number of seconds for the
SYN cookie to keep a proxied
connection alive.
portscan
srcsession
ftpovfl
Maximum number of SYN segments
received per second
512
1
1000000
1000000
1408
Total number of TCP sessions initiated 2048
from the same source
1
Maximum buffer size for an FTP
command (bytes)
256
512
512
2048
32
32
32
1
smtpovfl
pop3ovfl
udpflood
Maximum buffer size for an SMTP
command (bytes)
1408
Maximum buffer size for a POP3
command (bytes)
1408
Maximum number of UDP packets
received from the same source or sent
to the same destination per second
1000000
udpsrcsession
icmpflood
Total number of UDP sessions initiated 2048
from the same source
1
1
1000000
1000000
Maximum number of ICMP packets
received from the same source or sent
to the same destination per second
256
icmpsrcsession Total number of ICMP sessions
initiated from the same source
128
128
1
1
1000000
1000000
icmpsweep
Maximum number of ICMP packets
received from the same source per
second
icmplarge
Maximum ICMP packet size (bytes)
32000
64
64000
FortiGate-800 Installation and Configuration Guide
275
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging attacks
Network Intrusion Detection System (NIDS)
To set Prevention signature threshold values
1
2
Go to NIDS > Prevention.
Select Modify
beside the signature for which you want to set the Threshold value.
Signatures that do not have threshold values do not have Modify
icons.
3
4
5
Type the Threshold value.
Select the Enable check box.
Select OK.
Logging attacks
Whenever the NIDS detects or prevents an attack, it generates an attack message.
You can configure the system to add the message to the attack log.
•
•
Logging attack messages to the attack log
To log attack messages to the attack log
1
2
3
4
5
Go to Log&Report > Log Setting.
Select Config Policy for the log locations you have set.
Select Attack Log.
Select Attack Detection and Attack Prevention.
Select OK.
Note: For information about log message content and formats, and about log locations, see the
FortiGate Logging and Message Reference Guide.
Reducing the number of NIDS attack log and email messages
Intrusion attempts might generate an excessive number of attack messages. Based
on the frequency that messages are generated, the FortiGate unit automatically
deletes duplicates. If you still receive an excessive number of unnecessary
messages, you can manually disable message generation for unneeded signature
groups.
Automatic message reduction
The attack log and alert email messages that the NIDS produces include the ID
number and name of the attack that generated the message. The attack ID number
and name in the message are identical to the ID number and rule name that appear
on the NIDS Signature Group Members list.
276
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Network Intrusion Detection System (NIDS)
Logging attacks
The FortiGate unit uses an alert email queue in which each new message is
compared with the previous messages. If the new message is not a duplicate, the
FortiGate unit sends it immediately and puts a copy in the queue. If the new message
is a duplicate, the FortiGate unit deletes it and increases an internal counter for the
number of message copies in the queue.
The FortiGate unit holds duplicate alert email messages for 60 seconds. If a duplicate
message has been in the queue for more than 60 seconds, the FortiGate unit deletes
the message and increases the copy number. If the copy number is greater than 1, the
FortiGate unit sends a summary email that includes “Repeated x times” in the subject
header, the statement “The following email has been repeated x times in the last y
seconds”, and the original message.
Manual message reduction
If you want to reduce the number of alerts that the NIDS generates, you can review
the content of attack log messages and alert email. If a large number of the alerts are
nuisance alerts (for example, web attacks when you are not running a web server),
you can disable the signature group for that attack type. Use the ID number in the
attack log or alert email to locate the attack in the signature group list. See “Disabling
FortiGate-800 Installation and Configuration Guide
277
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging attacks
Network Intrusion Detection System (NIDS)
278
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Antivirus protection
You can enable antivirus protection in firewall policies. You can select a content profile
that controls how the antivirus protection behaves. Content profiles control the type of
traffic protected (HTTP, FTP, IMAP, POP3, SMTP), the type of antivirus protection and
the treatment of fragmented email and oversized files or email.
This chapter describes:
•
•
•
•
•
•
•
General configuration steps
Configuring antivirus protection involves the following general steps.
1
2
Select antivirus protection options in a new or existing content profile. See “Adding
Select the Anti-Virus & Web filter option in firewall policies that allow web (HTTP),
FTP, and email (IMAP, POP3, and SMTP) connections through the FortiGate unit.
Select a content profile that provides the antivirus protection options that you want to
3
Configure antivirus protection settings to control how the FortiGate unit applies
antivirus protection to the web, FTP, and email traffic allowed by policies. See:
•
•
•
•
4
5
Configure file quarantine settings to control the quarantining of infected or blocked
files by traffic type, age, and file size. See “Configuring quarantine options” on
Configure the messages that users receive when the FortiGate unit blocks or deletes
FortiGate-800 Installation and Configuration Guide
279
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus scanning
Antivirus protection
6
Configure the FortiGate unit to send an alert email when it blocks or deletes an
infected file. See “Configuring alert email” in the Logging and Message Reference
Guide.
Note: For information about receiving virus log messages, see “Configuring logging”, and for
information about log message content and format, see “Virus log messages” in the Logging
Configuration and Reference Guide
Antivirus scanning
Virus scanning intercepts most files (including files compressed with up to 12 layers of
compression using zip, rar, gzip, tar, upx, and OLE) in the content streams for which
you enable antivirus protection. Each file is tested to determine the file type and the
most effective method of scanning the file for viruses. For example, binary files are
scanned using binary virus scanning and Microsoft Office files containing macros are
scanned for macro viruses.
FortiGate virus scanning does not scan the following file types:
•
•
•
•
•
cdimage
floppy image
.ace
.bzip2
.Tar+Gzip+Bzip2
If a file is found to contain a virus, the FortiGate unit removes the file from the content
stream and replaces it with a replacement message.
If your FortiGate unit includes a hard disk and if quarantine is enabled for infected files
for the matching traffic protocol, the FortiGate unit adds the file to the quarantine list.
To scan FortiGate firewall traffic for viruses
1
Select antivirus scanning in a content profile.
2
3
Optionally select Quarantine in this content profile.
Add this content profile to firewall policies to apply virus scanning to the traffic
controlled by the firewall policy.
4
Configure file quarantine settings to control the quarantining of infected files.
For information about configuring quarantine options, see “Configuring quarantine
280
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus protection
File blocking
Figure 69: Example content profile for virus scanning
File blocking
Enable file blocking to remove all files that are a potential threat and to provide the
best protection from active computer virus attacks. Blocking files is the only protection
from a virus that is so new that antivirus scanning cannot detect it. You would not
normally operate the FortiGate unit with blocking enabled. However, it is available for
extremely high-risk situations in which there is no other way to prevent viruses from
entering your network.
On a FortiGate unit with a hard disk, if quarantining is enabled for blocked files for the
matching traffic protocol, the FortiGate unit adds the file to the quarantine list.
File blocking deletes all files that match a list of enabled file patterns. The FortiGate
unit replaces the file with an alert message that is forwarded to the user. The
FortiGate unit also writes a message to the virus log and sends an alert email if it is
configured to do so.
Note: If both blocking and scanning are enabled, the FortiGate unit blocks files that match
enabled file patterns and does not scan these files for viruses.
FortiGate-800 Installation and Configuration Guide
281
Download from Www.Somanuals.com. All Manuals Search And Download.
File blocking
Antivirus protection
By default, when blocking is enabled, the FortiGate unit blocks the following file
patterns:
•
•
•
•
•
•
•
•
executable files (*.bat, *.com, and *.exe)
compressed or archive files (*.gz, *.rar, *.tar, *.tgz, and *.zip)
dynamic link libraries (*.dll)
HTML application (*.hta)
Microsoft Office files (*.doc, *.ppt, *.xl?)
Microsoft Works files (*.wps)
Visual Basic files (*.vb?)
screen saver files (*.scr)
Blocking files in firewall traffic
Use content profiles to apply file blocking to HTTP, FTP, POP3, IMAP, and SMTP
traffic controlled by firewall policies.
To block files in firewall traffic
1
2
Select file blocking in a content profile.
Add this content profile to firewall policies to apply content blocking to the traffic
controlled by the firewall policy.
Adding file patterns to block
To add file patterns to block
1
2
3
Go to Anti-Virus > File Block.
Select New.
Type the new pattern in the File Pattern field.
You can use an asterisk (*) to represent any characters and a question mark (?) to
represent any single character. For example, *.dot blocks Microsoft Word template
files and *.do? blocks both Microsoft Word template files and document files.
4
5
Select the check box beside the traffic protocols for which you want to enable blocking
of this file pattern.
Select OK.
282
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus protection
Quarantine
Quarantine
FortiGate units with a hard disk can quarantine blocked or infected files. The
quarantined files are removed from the content stream and stored on the FortiGate
hard disk. Users receive a message that the removed files have been quarantined.
On the FortiGate, the names of quarantined files are displayed on the quarantine list.
The list displays status, duplication, and age information for each quarantined file. You
can sort and filter this list based on these criteria. From the list you can also delete or
download files.
•
•
•
•
•
•
•
•
Quarantining infected files
Use content profiles to quarantine infected files found in HTTP, FTP, POP3, IMAP, and
SMTP traffic controlled by firewall policies.
To quarantine infected files
1
2
3
Go to Anti-Virus > Quarantine > Quarantine Config.
Select the Content protocols for which you want quarantine infected files.
Select antivirus scanning in a content profile.
4
5
Select Quarantine to save to the quarantine any files that are found to be infected with
a virus.
Add this content profile to firewall policies to quarantine infected files found in the
traffic controlled by the firewall policy.
Quarantining blocked files
Use content profiles to quarantine blocked files found in POP3, IMAP, and SMTP
traffic controlled by firewall policies.
To quarantine blocked files
1
2
3
Go to Anti-Virus > Quarantine > Quarantine Config.
Select the Content protocols for which to quarantine blocked files.
To quarantine blocked files, select file block in a content profile.
4
Select Quarantine to save to the quarantine any files that are blocked.
FortiGate-800 Installation and Configuration Guide
283
Download from Www.Somanuals.com. All Manuals Search And Download.
Quarantine
Antivirus protection
5
Add this content profile to firewall policies.
Viewing the quarantine list
To view the quarantine list
1
Go to Anti-Virus > Quarantine.
The quarantine list displays the following information:
File Name
The processed filename of the file that was quarantined. The processed
filename has all white space removed. As a file is quarantined, it is 32-bit
checksummed and stored on the FortiGate hard disk with the following
naming convention: <32bit CRC>.<processed filename>
For example, a file named Over Size.exe is stored as
3fc155d2.oversize.exe.
Date Quarantined The date and time that the file was quarantined, in the format dd/mm/yyyy
hh:mm. This value indicates the time that the first file was quarantined if the
duplicate count increases.
Service
The service from which the file was quarantined (HTTP, FTP, IMAP, POP3,
SMTP).
Status
Indicates if the file is infected by a virus, caught by heuristics, blocked by a
block pattern, or oversized.
Status
Description
Specific information related to the status, for example, “File is infected with
“W32/Klez.h”” or “File was stopped by file block pattern.”
DC
Duplicate count. A count of how many duplicate files were discovered
during quarantine. A rapidly increasing number can indicate a virus
outbreak.
TTL
Time to live in the format hh:mm. When the TTL elapses, the FortiGate unit
labels the file as EXP under the TTL heading. In the case of duplicate files,
each duplicate found refreshes the TTL.
Actions
You can delete or download the file. When you download a file, it is
downloaded in its original format.
Note: In the case of duplicate files, all fields relate to the originally quarantined file except TTL,
which is refreshed with every new instance of a specific file. Duplicate files (based on
checksum) are never stored, but an internal counter for each file records the number of
duplicates.
Sorting the quarantine list
You can sort the quarantine list according to status (infected or blocked), service
(IMAP, POP3, SMTP, FTP, or HTTP), date quarantined, time to live (TTL), duplicate
count, or alphabetically by filename,.
To sort the Quarantine list
Go to Anti-Virus > Quarantine.
Select a column heading in the Sort by list.
Select Apply.
1
2
3
284
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus protection
Quarantine
Filtering the quarantine list
You can filter the quarantine list to:
•
•
•
Display only blocked files
Display only infected files
Display blocked and infected files found only in IMAP, POP3, SMTP, FTP, or HTTP
traffic
To filter the Quarantine list to display blocked or infected files
Go to Anti-Virus > Quarantine.
For FiIlter, select Status.
1
2
3
4
Select either infected or blocked.
Select Apply.
To filter the Quarantine list to display blocked or infected files for a service
Go to Anti-Virus > Quarantine.
1
2
3
4
For FiIlter, select Service.
Select IMAP, POP3, SMTP, FTP, or HTTP.
Select Apply.
Deleting files from the quarantine list
To delete a file from the quarantine list
Go to Anti-Virus > Quarantine.
Select Delete to remove a quarantined file from the list.
1
2
Downloading quarantined files
To download quarantined files
Go to Anti-Virus > Quarantine.
Select Download to download a quarantined file in its original format.
1
2
Configuring quarantine options
You can specify whether the FortiGate unit quarantines infected files, blocked files, or
both in web, FTP, and email traffic. You can also set the file age limit, the maximum file
size, and the method for handling additional files when the FortiGate hard disk is
running out of disk space.
To configure quarantine options
1
2
Go to Anti-Virus > Quarantine > Quarantine Config.
For each traffic protocol, select the applicable Quarantine Infected Files and
Quarantine Blocked Files check boxes.
The FortiGate unit quarantines infected and blocked files for the selected traffic.
FortiGate-800 Installation and Configuration Guide
285
Download from Www.Somanuals.com. All Manuals Search And Download.
Blocking oversized files and emails
Antivirus protection
Note: The Quarantine Blocked Files option is not available for HTTP or FTP because a
filename is blocked at request time and the file is not downloaded to the FortiGate unit.
3
4
Type the Age Limit (TTL) in hours to specify how long files are left in quarantine.
The maximum number of hours is 480. The FortiGate unit automatically deletes a file
when the TTL reaches 00:00.
Type the maximum file size in MB to quarantine. The FortiGate unit keeps the existing
quarantined files that are larger than the file size limit. The FortiGate unit does not
quarantine new files that are larger than the file size limit. The file size range is 1-499
MBytes.
Enter 0 for unlimited file size.
5
6
Select a Low Disk Space option to specify the method for handling additional files
when the FortiGate hard disk is running out of disk space.
You can select overwrite oldest file or drop new quarantine files.
Select Apply.
Blocking oversized files and emails
You can configure the FortiGate unit to buffer 1 to 15 percent of available memory to
store oversized files and email. The FortiGate unit then blocks a file or email that
exceeds this limit instead of bypassing antivirus scanning and sending the file or email
directly to the server or receiver. The FortiGate unit sends a replacement message for
an oversized file or email attachment to the HTTP or email proxy client.
Configuring limits for oversized files and email
To configure limits for oversized files and email
Go to Anti-Virus > Config > Config.
Type the size limit, in MB.
1
2
3
Select Apply.
286
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Antivirus protection
Exempting fragmented email from blocking
Exempting fragmented email from blocking
A fragmented email is a large email message that has been split into smaller
messages that are sent individually and recombined when they are received. By
default, when antivirus protection is enabled, the FortiGate unit blocks fragmented
emails and replaces them with an email block message that is forwarded to the
receiver. It is recommended that you disable the fragmenting of email messages in the
client email software.
To exempt fragmented emails from automatic antivirus blocking
Caution: The FortiGate unit cannot scan fragmented emails for viruses or use file pattern
!
blocking to remove files from these email messages.
1
Enable Pass Fragmented Emails for IMAP, POP3, and SMTP traffic in a content
profile.
2
3
Select Anti-Virus & Web filter in a firewall policy. For example, to pass fragmented
emails that internal users send to the external network, select an internal to external
policy.
Select a content profile that has Pass Fragmented Emails enabled for the traffic that
you want the FortiGate unit to scan.
Viewing the virus list
You can view the names of the viruses and worms in the current virus definition list.
To view the virus list
1
2
Go to Anti-Virus > Config > Virus List.
Scroll through the virus and worm list to view the names of all viruses and worms in
the list.
FortiGate-800 Installation and Configuration Guide
287
Download from Www.Somanuals.com. All Manuals Search And Download.
Viewing the virus list
Antivirus protection
288
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Web filtering
When you enable Anti-Virus & Web filter in a firewall policy, you select a content
profile that controls how web filtering behaves for HTTP traffic. Content profiles control
the following types of content filtering:
•
•
•
•
blocking unwanted URLs,
blocking unwanted content,
removing scripts from web pages,
exempting URLs from blocking.
You can also use the Cerberian URL filtering to block unwanted URLs. For more
This chapter describes:
•
•
•
•
•
•
General configuration steps
Configuring web filtering involves the following general steps:
1
2
Select web filtering options in a new or existing content profile. See “Adding content
Select the Anti-Virus & Web filter option in firewall policies that allow HTTP
connections through the FortiGate unit.
•
Select a content profile that provides the web filtering options that you want to
FortiGate-800 Installation and Configuration Guide
289
Download from Www.Somanuals.com. All Manuals Search And Download.
Content blocking
Web filtering
3
Configure web filtering settings to control how the FortiGate unit applies web filtering
to the HTTP traffic allowed by policies. See:
•
•
•
•
•
4
5
6
Configure the messages that users receive when the FortiGate unit blocks unwanted
Configure the FortiGate unit to record log messages when it blocks unwanted content
Configure the FortiGate unit to send an alert email when it blocks unwanted content or
Content blocking
When the FortiGate unit blocks a web page, the user who requested the blocked page
receives a block message and the FortiGate unit writes a message to the web filtering
log.
You can add banned words to the list in many languages using Western, Simplified
Chinese, Traditional Chinese, Japanese, or Korean character sets.
•
•
•
•
Adding words and phrases to the Banned Word list
1
2
3
Go to Web Filter > Content Block.
Select New to add a word or phrase to the Banned Word list.
Choose a language or character set for the banned word or phrase.
You can choose Western, Chinese Simplified, Chinese Traditional, Japanese, or
Korean.
Your computer and web browser must be configured to enter characters in the
character set that you choose.
290
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
Content blocking
4
Type a banned word or phrase.
If you type a single word (for example, banned), the FortiGate unit blocks all web
pages that contain that word.
If you type a phrase (for example, banned phrase), the FortiGate unit blocks web
pages that contain both words. When this phrase appears on the banned word list, the
FortiGate unit inserts plus signs (+) in place of spaces (for example,
banned+phrase).
If you type a phrase in quotes (for example, “banned word”), the FortiGate unit
blocks all web pages in which the words are found together as a phrase.
Content filtering is not case-sensitive. You cannot include special characters in
banned words.
5
6
To enable the banned word, ensure that the Enable checkbox is selected.
Select OK.
The word or phrase is added to the Banned Word list.
You can enable all the words on the banned word list by selecting Check All
You can disable all the words on the banned word list by selecting Uncheck All
.
.
Note: Banned Word must be selected in the content profile for web pages containing banned
words to be blocked.
Figure 70: Example banned word list
Clearing the Banned Word list
1
2
Go to Web Filter > Content Block.
Select Clear List
list.
to remove all banned words and phrases from the banned word
FortiGate-800 Installation and Configuration Guide
291
Download from Www.Somanuals.com. All Manuals Search And Download.
Content blocking
Web filtering
Backing up the Banned Word list
You can back up the banned word list by downloading it to a text file on the
management computer.
To back up the banned word list
Go to Web Filter > Content Block.
Select Backup Banned Word List
1
2
.
The FortiGate unit downloads the list to a text file on the management computer. You
can specify a location to which to download the text file as well as a name for the text
file.
Restoring the Banned Word list
You can create a Banned Word list in a text editor and then upload the text file to the
FortiGate unit. Add one banned word or phrase to each line of the text file. The word
or phrase should be followed by two parameters separated by spaces. The first
parameter specifies the status of the entry. The second parameter specifies the
language of the entry.
Table 41: Banned Word list configuration parameters
Parameter Setting
Description
Disabled
Status
0
1
0
1
2
3
4
Enabled
Language
ASCII
Simplfied Chinese
Traditional Chinese
Japanese
Korean
Figure 71: Example Banned Word List text file
banned 1 0
banned+phrase+1 1 3
"banned+phrase+2" 1 1
Note: All changes made to the banned word list using the web-based manager are lost when
you upload a new list. However, you can download your current banned word list, add more
items to it using a text editor, and then upload the edited list to the FortiGate unit.
To restore the banned word list
1
2
3
Go to Web Filter > Content Block.
Select Restore Banned Word List
.
Type the path and filename of the banned word list text file, or select Browse and
locate the file.
4
Select OK to upload the file to the FortiGate unit.
292
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
URL blocking
5
6
Select Return to display the updated Banned Word List.
You can continue to maintain the Banned Word List by making changes to the text file
and uploading it again as necessary.
.
Note: Banned Word must be selected in the content profile for web pages containing banned
words to be blocked.
URL blocking
You can block the unwanted web URLs using FortiGate Web URL blocking, FortiGate
Web pattern blocking, and Cerberian web filtering.
•
•
•
Configuring FortiGate Web URL blocking
You can configure FortiGate Web URL blocking to block all pages on a website by
adding the top-level URL or IP address. You can also block individual pages on a
website by including the full path and filename of the web page to block.
•
•
•
•
Adding URLs to the Web URL block list
Go to Web Filter > Web URL Block.
1
2
3
Select New to add a URL to the Web URL block list.
Type the URL the you want to block.
Type a top-level URL or IP address to block access to all pages on a website. For
example, www.badsite.comor 122.133.144.155blocks access to all pages at
this website.
Type a top-level URL followed by the path and filename to block access to a single
page on a website. For example, www.badsite.com/news.htmlor
122.133.144.155/news.htmlblocks the news page on this website.
To block all pages with a URL that ends with badsite.com, add badsite.comto
the block list. For example, adding badsite.comblocks access to
www.badsite.com, mail.badsite.com, www.finance.badsite.com, and so
on.
Note: Do not include http://in the URL that you want to block.
FortiGate-800 Installation and Configuration Guide
293
Download from Www.Somanuals.com. All Manuals Search And Download.
URL blocking
Web filtering
Note: Do not use regular expressions in the Web URL block list. You can use regular
expressions in the Web Pattern Block list to create URL patterns to block. See “Configuring
Note: You can type a top-level domain suffix (for example, “com” without the leading period) to
block access to all URLs with this suffix.
Note: URL blocking does not block access to other services that users can access with a web
browser. For example, URL blocking does not block access to ftp://ftp.badsite.com.
Instead, you can use firewall policies to deny FTP connections.
4
5
Ensure that the Enable checkbox has been selected and then select OK.
Select OK to add the URL to the Web URL block list.
You can enter multiple URLs and then select Check All
Web URL block list.
to enable all items in the
You can disable all of the URLs on the list by selecting Uncheck All
Each page of the Web URL block list displays 100 URLs.
.
6
Use Page Up
and Page Down
to navigate through the Web URL block list.
Note: You must select the Web URL Block option in the content profile to enable the URL
blocking.
Figure 72: Example URL block list
Clearing the Web URL block list
1
2
Go to Web Filter > Web URL Block.
Select Clear URL Block List
block list.
to remove all URLs and patterns from the Web URL
294
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
URL blocking
Downloading the Web URL block list
You can back up the Web URL block list by downloading it to a text file on the
management computer.
To download a Web URL block list
1
2
Go to Web Filter > Web URL Block.
Select Download URL Block List
.
The FortiGate unit downloads the list to a text file on the management computer. You
can specify a location to which to download the text file as well as a name for the text
file.
Uploading a URL block list
You can create a URL block list in a text editor and then upload the text file to the
FortiGate unit. Add one URL or pattern to each line of the text file. You can follow the
item with a space and then a 1 to enable or a zero (0) to disable the URL. If you do not
add this information to the text file, the FortiGate unit automatically enables all URLs
and patterns that are followed by a 1 or no number when you upload the text file.
Figure 73: Example URL block list text file
www.badsite.com/index 1
www.badsite.com/products 1
182.63.44.67/index 1
You can either create the URL block list or add a URL list created by a third-party URL
block or blacklist service. For example, you can download the squidGuard blacklists
available at http://www.squidguard.org/blacklist/ as a starting point for creating a URL
block list. Three times per week, the squidGuard robot searches the web for new
URLs to add to the blacklists. You can upload the squidGuard blacklists to the
FortiGate unit as a text file, with only minimal editing to remove comments at the top of
each list and to combine the lists that you want into a single file.
Note: All changes made to the URL block list using the web-based manager are lost when you
upload a new list. However, you can download your current URL block list, add more items to it
using a text editor, and then upload the edited list to the FortiGate unit.
To upload a URL block list
1
2
3
4
In a text editor, create the list of URLs and patterns that you want to block.
Using the web-based manager, go to Web Filter > Web URL Block.
Select Upload URL Block List
.
Type the path and filename of the URL block list text file, or select Browse and locate
the file.
5
6
Select OK to upload the file to the FortiGate unit.
Select Return to display the updated Web URL block list.
Each page of the Web URL block list displays 100 URLs.
7
Use Page Down
and Page Up
to navigate through the Web URL block list.
FortiGate-800 Installation and Configuration Guide
295
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring Cerberian URL filtering
Web filtering
8
You can continue to maintain the Web URL block list by making changes to the text
file and uploading it again.
Configuring FortiGate Web pattern blocking
You can configure FortiGate web pattern blocking to block web pages that match a
URL pattern. Create URL patterns using regular expressions (for example,
badsite.*matches badsite.com, badsite.org, badsite.netand so on).
FortiGate web pattern blocking supports standard regular expressions. You can add
up to 20 patterns to the web pattern block list.
To add patterns to the Web pattern block list
1
2
3
Go to Web Filter > URL Block > Web Pattern Block.
Select New to add an item to the Web pattern block list.
Type the web pattern that you want to block.
You can use standard regular expressions for web patterns.
Note: URL blocking does not block access to other services that users can access with a web
browser. For example, URL blocking does not block access to ftp://ftp.badsite.com.
Instead, you can use firewall policies to deny FTP connections.
4
5
Select Enable to block the pattern.
Select OK to add the pattern to the Web pattern block list.
Note: You must select the Web URL Block option in the content profile to enable the URL
blocking.
Configuring Cerberian URL filtering
The FortiGate unit supports Cerberian URL filtering. For information about Cerberian
URL filtering, see www.cerberian.com.
Note: If you are operating FortiGate units in active-passive HA mode, each FortiGate unit in the
cluster must have its own Cerberian license. Cerberian web filtering is not supported for
If you have purchased the Cerberian web filtering functionality with your FortiGate
unit, use the following configuration procedures to configure FortiGate support for
Cerberian web filtering.
•
•
•
•
296
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
Configuring Cerberian URL filtering
Installing a Cerberian license key
Before you can use the Cerberian web filter, you must install a license key. The
license key determines the number of end users allowed to use Cerberian web
filtering through the FortiGate unit.
To install a Cerberian licence key
Go to Web Filter > URL Block.
Select Cerberian URL Filtering.
Enter the license number.
Select Apply.
1
2
3
4
Adding a Cerberian user
The Cerberian web policies can be applied only to user groups. You can add users on
the FortiGate unit and then add the users to user groups on the Cerberian
administration web site.
When the end user tries to access a URL, the FortiGate unit checks whether the
user’s IP address is in the IP address list on the FortiGate unit. If the user’s IP address
is in the list, the request is sent to the Cerberian server. Otherwise, an error message
is sent to the user saying that the user does not have authorized access to the
Cerberian web filter.
To add a Cerberian user
1
2
3
4
Go to Web Filter > URL Block.
Select Cerberian URL Filtering.
Select New.
Enter the IP address and netmask of the user computers.
You can enter the IP address of a single user. For example, 192.168.100.19
255.255.255.255. You can also enter a subnet of a group of users. For example,
192.168.100.0 255.255.255.0.
5
6
Enter an alias for the user.
The alias is used as the user name when you add the user to a user group on the
Cerberian server. If you do not enter an alias, the user’s IP is used and added to the
default group on the Cerberian server.
Select OK.
Configuring Cerberian web filter
After you add the Cerberian web filter users on the FortiGate unit, you can add these
users to the user groups on the Cerberian web filter server. Then you can create
policies and apply these policies to the user groups.
About the default group and policy
There is a default user group, which is associated with a default policy, that exists on
the Cerberian web filter server.
FortiGate-800 Installation and Configuration Guide
297
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring Cerberian URL filtering
Web filtering
You can add users to the default group and apply any policies to the group.
Use the default group to add:
•
•
All the users who are not assigned alias names on the FortiGate unit.
All the users who are not assigned to other user groups.
The Cerberian web filter groups URLs into 53 categories. The default policy blocks the
URLs of 12 categories. You can modify the default policy and apply it to any user
groups.
To configure Cerberian web filtering
1
Add the user name, which is the alias you added on the FortiGate unit, to a user group
on the Cerberian server.
Web policies can be applied only to user groups. If you did not enter an alias for a
user’s IP address on the FortiGate unit, the user’s IP address is automatically added
to the default Cerberian group.
2
3
Create policies by selecting the web categories that you want to block.
Apply the policy to a user group that contains the user.
For detailed procedures, see the online help on the Cerberian Web Filter web page.
Enabling Cerberian URL filtering
After you add the Cerberian users and groups and configure the Cerberian web filter,
you can enable Cerberian URL filtering.
To enable cerberian URL filtering
1
2
3
4
5
6
7
8
9
Go to Web Filter > URL Block > Cerberian URL Filtering.
Select the Cerberian URL Filtering option.
Go to Firewall > Content Profile.
Create a new or select an existing content profile and enable Web URL Block.
Go to Firewall > Policy.
Create a new or select an existing policy.
Select Anti-Virus & Web filter.
Select the content profile from the Content Profile list.
Select OK.
298
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
Script filtering
Script filtering
You can configure the FortiGate unit to remove Java applets, cookies, and ActiveX
scripts from the HTML web pages.
Note: Blocking any of these items might prevent some web pages from working properly.
•
•
Enabling script filtering
1
2
3
4
Go to Firewall > Content Profile.
Select the content profile for which you want to enable script filtering.
Select Script Filter.
Select OK.
Selecting script filter options
1
2
Go to Web Filter > Script Filter.
Select the script filter options that you want to enable.
You can block Java applets, cookies, and ActiveX.
3
Select Apply.
Figure 74: Example script filter settings to block Java applets and ActiveX
FortiGate-800 Installation and Configuration Guide
299
Download from Www.Somanuals.com. All Manuals Search And Download.
Exempt URL list
Web filtering
Exempt URL list
Add URLs to the exempt URL list to allow legitimate traffic that might otherwise be
blocked by content or URL blocking. For example, if content blocking is set to block
pornography-related words and a reputable website runs a story on pornography, web
pages from the reputable website are blocked. Adding the address of the reputable
website to the exempt URL list allows the content of the website to bypass content
blocking.
Note: Content downloaded from exempt web pages is not blocked or scanned by antivirus
protection.
•
•
•
Adding URLs to the URL Exempt list
1
2
3
Go to Web Filter > URLExempt.
Select New to add an item to the URL Exempt list.
Type the URL to exempt.
Type a complete URL, including path and filename, to exempt access to a page on a
website. For example, www.goodsite.com/index.htmlexempts access to the
main page of this example website. You can also add IP addresses; for example,
122.63.44.67/index.htmlexempts access to the main web page at this
address. Do not include http://in the URL to exempt.
Exempting a top-level URL, such as www.goodsite.com,exempts all requested
subpages (for example, www.goodsite.com/badpage) from all content and URL
filtering rules.
Note: Exempting a top-level URL does not exempt pages such as mail.goodsite.comfrom
all content and URL filtering rules unless goodsite.com(without the www) is added to the
exempt URL list.
4
5
Ensure that the Enable checkbox has been selected.
Select OK to add the URL to the exempt URL list.
You can enter multiple URLs and then select Check All
exempt URL list.
to activate all items in the
You can disable all the URLs in the list by selecting Uncheck All
Each page of the exempt URL list displays 100 URLs.
.
6
Use Page Down
and Page Up
to navigate the exempt URL list.
300
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Web filtering
Exempt URL list
Figure 75: Example URL Exempt list
Downloading the URL Exempt List
You can back up the URL Exempt List by downloading it to a text file on the
management computer.
1
2
Go to Web Filter > URL Exempt.
Select Download URL Exempt List
.
The FortiGate unit downloads the list to a text file on the management computer. You
can specify a location to which to download the text file as well as a name for the text
file.
Uploading a URL Exempt List
You can create a URL Exempt list in a text editor and then upload the text file to the
FortiGate unit. Add one URL or pattern to each line of the text file. The word or phrase
should be followed by a parameter specifying the status of the entry. If you do not add
this information to the text file, the FortiGate unit automatically enables all URLs and
patterns that are followed with a 1 or no number when you upload the text file.
Table 42: URL Exempt list configuration parameters
Parameter Setting
Description
Disabled
Status
0
1
Enabled
Figure 76: Example URL Emempt list text file
www.goodsite.com 1
www.goodsite.com/index 1
127.33.44.55 1
.
Note: All changes made to the URL block list using the web-based manager are lost when you
upload a new list. However, you can download your current URL block list, add more items to it
using a text editor, and then upload the edited list to the FortiGate unit.
1
2
In a text editor, create the list of URLs to exempt.
Using the web-based manager, go to Web Filter > URL Exempt.
FortiGate-800 Installation and Configuration Guide
301
Download from Www.Somanuals.com. All Manuals Search And Download.
Exempt URL list
Web filtering
3
4
Select Upload URL Exempt List
.
Type the path and filename of your URL Exempt List text file, or select Browse and
locate the file.
5
6
7
Select OK to upload the file to the FortiGate unit.
Select Return to display the updated URL Exempt List.
You can continue to maintain the URL Exempt List by making changes to the text file
and uploading it again as necessary.
302
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Email filter
Email filtering is enabled in firewall policies. When you enable Anti-Virus & Web filter
in a firewall policy, you select a content profile that controls how email filtering
behaves for email (IMAP and POP3) traffic. Content profiles control the following
types of protection to identify unwanted email:
•
•
•
filtering unwanted sender address patterns,
filtering unwanted content,
exempting sender address patterns from blocking.
This chapter describes:
•
•
•
•
•
General configuration steps
Configuring email filtering involves the following general steps:
1
2
Select email filter options in a new or existing content profile. See “Adding content
Select the Anti-Virus & Web filter option in firewall policies that allow IMAP and POP3
connections through the FortiGate unit. Select a content profile that provides the email
filtering options that you want to apply to a policy. See “Adding content profiles to
3
Add a subject tag to the unwanted email so that receivers can use their mail client
Note: For information about receiving email filter log messages, see “Configuring logging” in the
Logging Configuration and Reference Guide. For information about email filter log message
categories and formats, see “Log messages” in the FortiGate Logging Configuration and
Reference Guide.
FortiGate-800 Installation and Configuration Guide
303
Download from Www.Somanuals.com. All Manuals Search And Download.
Email banned word list
Email filter
Email banned word list
When the FortiGate unit detects an email that contains a word or phrase in the banned
word list, the FortiGate unit adds a tag to the subject line of the email and writes a
message to the event log. Receivers can then use their mail client software to filter
messages based on the subject tag.
You can add banned words to the list in many languages using Western, Simplified
Chinese, Traditional Chinese, Japanese, or Korean character sets.
•
•
•
Adding words and phrases to the email banned word list
To add a word or phrase to the banned word list
1
2
3
Go to Email Filter > Content Block.
Select New.
Type a banned word or phrase.
•
If you type a single word (for example, banned), the FortiGate unit tags all IMAP
and POP3 email that contains that word.
•
If you type a phrase (for example, banned phrase), the FortiGate unit tags email
that contains both words. When this phrase appears on the banned word list, the
FortiGate unit inserts plus signs (+) in place of spaces (for example,
banned+phrase).
•
If you type a phrase in quotes (for example, “banned word”), the FortiGate unit
tags all email in which the words are found together as a phrase.
Content filtering is not case-sensitive. You cannot include special characters in
banned words.
1
2
Select the Language for the banned word or phrase.
You can choose Western, Chinese Simplified, Chinese Traditional, Japanese, or
Korean.
Your computer and web browser must be configured to enter characters in the
language that you select.
Select OK.
The word or phrase is added to the banned word list.
Note: Email Content Block must be selected in the content profile for IMAP or POP3 email
containing banned words to be tagged.
304
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Email filter
Email banned word list
Downloading the email banned word list
You can back up the banned word list by downloading it to a text file on the
management computer:
To download the banned word list
Go to Email Filter > Content Block.
Select Download.
1
2
The FortiGate unit downloads the banned word list to a text file on the management
computer. You can specify a location to which to download the text file as well as a
name for the text file.
Uploading the email banned word list
You can create or edit a banned word list in a text file and upload it from your
management computer to the FortiGate unit.
Each banned word or phrase must appear on a separate line in the text file. Use
ASCII, Western, Chinese Simplified, Chinese Traditional, Japanese, or Korean
characters. Your computer and web browser must be configured to enter characters in
the character set that you use.
All words are enabled by default. Optionally, you can enter a space and a 1 after the
word to enable it, and another space and a number to indicate the language.
0
1
2
3
4
Western
Chinese Simplified
Chinese Traditional
Japanese
Korean
If you do not add this information to all items in the text file, the FortiGate unit
automatically enables all banned words and phrases that are followed with a 1 or no
number in the Western language when you upload the text file.
Figure 77: Example Western email banned word list text file
banned 1 0
banned+phrase+1 1 0
“banned phrase 2” 1 0
To upload the banned word list
Go to Email Filter > Content Block.
Select Upload.
1
2
3
Type the path and filename of the banned word list text file or select Browse and
locate the file.
4
Select OK to upload the banned word list text file.
Select Return to display the banned word list.
FortiGate-800 Installation and Configuration Guide
305
Download from Www.Somanuals.com. All Manuals Search And Download.
Email block list
Email filter
Email block list
You can configure the FortiGate unit to tag all IMAP and POP3 protocol traffic sent
from unwanted email addresses. When the FortiGate unit detects an email sent from
an unwanted address pattern, the FortiGate unit adds a tag to the subject line of the
email and writes a message to the email filter log. Receivers can then use their mail
client software to filter messages based on the subject tag.
You can tag email from a specific sender address or from all address subdomains by
adding the top-level domain name. Alternatively, you can tag email sent from
individual subdomains by including the subdomain to block.
•
•
•
Adding address patterns to the email block list
To add an address pattern to the email block list
1
2
3
Go to Email Filter > Block List.
Select New.
Type a Block Pattern.
•
•
•
•
To tag email from a specific email address, type the email address. For example,
To tag email from a specific domain, type the domain name. For example,
abccompany.com.
To tag email from a specific subdomain, type the subdomain name. For example,
mail.abccompany.com.
To tag email from an entire organization category, type the top-level domain name.
For example, type comto tag email sent from all organizations that use .com as the
top-level domain.
The pattern can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z),
and the special characters - (hyphen),_ (underscore), and @. Spaces and other
special characters are not allowed.
4
Select OK to add the address pattern to the Email Block list.
Downloading the email block list
You can back up the email block list by downloading it to a text file on the
management computer.
To download the email block list
Go to Email Filter > Block List.
Select Download.
1
2
The FortiGate unit downloads the list to a text file on the management computer. You
can specify a location to which to download the text file as well as a name for the text
file.
306
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Email filter
Email exempt list
Uploading an email block list
You can create a email block list in a text editor and then upload the text file to the
FortiGate unit. Add one pattern to each line of the text file. You can follow the pattern
with a space and then a 1 to enable or a zero (0) to disable the pattern. If you do not
add this information to the text file, the FortiGate unit automatically enables all
patterns that are followed with a 1 or no number when you upload the text file.
Figure 78: Example email block list text file
mail.badsite.com 1
suredeal.org 1
You can either create the email block list yourself, or add a block list created by a
third-party email blacklist service. For example, you can subscribe to the Realtime
Blackhole List service available at http://mail-abuse.org/rbl/ as a starting point for
creating your own email block list. You can upload blacklists to the FortiGate unit as
text files, with only minimal editing to remove comments at the top of each list and to
combine the lists that you want into a single file.
Note: All changes made to the email block list using the web-based manager are lost when you
upload a new list. However, you can download your current email block list, add more patterns
to it using a text editor, and then upload the edited list to the FortiGate unit.
To upload the email block list
1
2
3
4
In a text editor, create the list of patterns to block.
Using the web-based manager, go to Email Filter > Block List.
Select Upload.
Type the path and filename of your email block list text file, or select Browse and
locate the file.
5
6
7
Select OK to upload the file to the FortiGate unit.
Select Return to display the updated email block list.
You can continue to maintain the email block list by making changes to the text file
and uploading it again.
Email exempt list
Add address patterns to the exempt list to allow legitimate IMAP and POP3 traffic that
might otherwise be tagged by email or content blocking. For example, if the email
banned word list is set to block email that contains pornography-related words and a
reputable company sends email that contains these words, the FortiGate unit would
normally add a subject tag to the email. Adding the domain name of the reputable
company to the exempt list allows IMAP and POP3 traffic from the company to bypass
email and content blocking.
FortiGate-800 Installation and Configuration Guide
307
Download from Www.Somanuals.com. All Manuals Search And Download.
Adding a subject tag
Email filter
Adding address patterns to the email exempt list
To add an address pattern to the email exempt list
Go to Email Filter > Exempt List.
Select New.
1
2
3
Type the address pattern that you want to exempt.
•
•
•
•
To exempt email sent from a specific email address, type the email address. For
To exempt email sent from a specific domain, type the domain name. For example,
abccompany.com.
To exempt email sent from a specific subdomain, type the subdomain name. For
example, mail.abccompany.com.
To exempt email sent from an entire organization category, type the top-level
domain name. For example, type netto exempt email sent from all organizations
that use .net as the top-level domain.
The pattern can contain numbers (0-9), uppercase and lowercase letters (A-Z, a-z),
and the special characters - (hyphen),_ (underscore), and @. Spaces and other
special characters are not allowed.
4
Select OK to add the address pattern to the email exempt list.
Adding a subject tag
When the FortiGate unit receives email from an unwanted address or email that
contains an item in the email banned word list, the FortiGate unit adds a tag to the
subject line and sends the message to the destination email address. Email users can
use their mail client software to filter the messages based on the subject tag.
To add a subject tag
1
2
Go to Email Filter > Config.
Type the Subject Tag that you want to display in the subject line of email received from
unwanted addresses or that contains banned words. For example, type Unwanted
Mail.
Note: Do not use quotation marks in the subject tags.
3
Select Apply.
The FortiGate unit adds the tag to the subject line of all unwanted email.
308
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Logging and reporting
You can configure the FortiGate unit to log network activity from routine configuration
changes and traffic sessions to emergency events. You can also configure the
FortiGate unit to send alert email messages to inform system administrators about
events such as network attacks, virus incidents, and firewall and VPN events.
This chapter describes:
•
•
•
•
•
•
Recording logs
You can configure logging to record logs to one or more of:
•
a computer running a syslog server,
•
•
•
a computer running a WebTrends firewall reporting server,
the FortiGate hard disk (if your FortiGate unit contains a hard disk),
the console.
For information about filtering the log types and activities that the FortiGate unit
This section describes:
•
•
•
•
•
FortiGate-800 Installation and Configuration Guide
309
Download from Www.Somanuals.com. All Manuals Search And Download.
Recording logs
Logging and reporting
Recording logs on a remote computer
You can configure the FortiGate unit to record log messages on a remote computer.
The remote computer must be configured with a syslog server.
To record logs on a remote computer
1
2
3
4
5
Go to Log&Report > Log Setting.
Select the Log to Remote Host check box to send the logs to a syslog server.
Type the IP address of the remote computer running syslog server software.
Type the port number of the syslog server.
Select the severity level for which you want to record log messages.
The FortiGate unit logs all levels of severity down to, but not lower than, the level you
choose. For example, if you want to record emergency, alert, critical, and error
messages, select Error.
6
Select Config Policy.
•
•
Select the Log type for which you want the FortiGate unit to record logs.
For each Log type, select the activities for which you want the FortiGate unit to
record log messages.
For information about log types and activities, see “Filtering log messages” on
7
8
Select OK.
Select Apply.
Recording logs on a NetIQ WebTrends server
Use the following procedure to configure the FortiGate unit to record logs on a remote
NetIQ WebTrends firewall reporting server for storage and analysis. FortiGate log
formats comply with WebTrends Enhanced Log Format (WELF) and are compatible
with WebTrends NetIQ Security Reporting Center 2.0 and Firewall Suite 4.1. For more
information, see the Security Reporting Center and Firewall Suite documentation.
Note: FortiGate traffic log messages include sent and received fields, which are optional but
required for drawing a WebTrends graph.
To record logs on a NetIQ WebTrends server
1
2
3
4
Go to Log&Report > Log Setting.
Select the Log in WebTrends Enhanced Log Format check box.
Type the IP address of the NetIQ WebTrends firewall reporting server.
Select the severity level for which you want to record log messages.
The FortiGate logs all levels of severity down to, but not lower than, the level you
choose. For example, if you want to record emergency, alert, critical, and error
messages, select Error.
310
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Recording logs
5
Select Config Policy.
To configure the FortiGate unit to filter the types of logs and events to record, use the
6
7
Select OK.
Select Apply.
Recording logs on the FortiGate hard disk
You can record log files on the FortiGate hard disk if a hard disk is installed on your
FortiGate unit.
To record logs on the FortiGate hard disk
Go to Log&Report > Log Setting.
1
2
3
Select the Log to Local Disk check box.
Type a maximum log file size (in MB).
When the log file reaches the maximum log file size, the current log file is closed and
saved and a new active log file is started. The default maximum log file size is 10 MB
and the maximum allowed is 1 GB.
4
5
Type a log time interval (in days).
After the specified time interval, the current log file is closed and saved and a new one
is started. The default log time interval is 10 days.
Select the severity level for which you want to record log messages.
The FortiGate logs all levels of severity down to, but not lower than, the level you
choose. For example, if you want to record emergency, alert, critical, and error
messages, select Error.
6
7
Select Config Policy.
To configure the FortiGate to filter the types of logs and events to record, use the
Set Log options for when the disk is full to one of the following:
Overwrite
Delete the oldest log file when the hard disk is full. Overwrite is the default
option.
Block traffic
Do not log
Block all network traffic when the hard disk is full.
Stop logging messages when the hard disk is full.
8
Select Apply.
FortiGate-800 Installation and Configuration Guide
311
Download from Www.Somanuals.com. All Manuals Search And Download.
Recording logs
Logging and reporting
Recording logs in system memory
If your FortiGate unit does not contain a hard disk, you can configure the FortiGate
unit to reserve some system memory for storing current event, attack, antivirus, web
filter, and email filter log messages. Logging to memory allows quick access to only
the most recent log entries. The FortiGate unit can store a limited number of
messages in system memory. After all available memory is used, the FortiGate unit
deletes the oldest messages. If the FortiGate unit restarts, the log entries are lost.
Note: The FortiGate unit can record only the event and attack log messages in system memory.
To record logs in system memory
1
2
3
Go to Log&Report > Log Setting.
Select the Log to memory check box.
Select the severity level for which you want to record log messages.
The FortiGate logs all levels of severity down to, but not lower than, the level you
choose. For example, if you want to record emergency, alert, critical, and error
messages, select Error.
4
5
Select Config Policy.
To configure the FortiGate to filter the types of logs and events to record, use the
Select Apply.
Log message levels
Table 43: FortiGate log message levels
Levels Description
0 - Emergency The system has become unstable.
Generated by
Emergency messages not
available.
1 - Alert
Immediate action is required.
Functionality is affected.
NIDS attack log messages.
DHCP
2 - Critical
3 - Error
An error condition exists and
functionality could be affected.
Error messages not available.
4 - Warning
5 - Notice
Functionality could be affected.
Antivirus, Web filter, email filter, and
system event log messages.
Information about normal events.
Antivirus, Web filter, and email filter
log messages.
6 - Information General information about system
operations.
Antivirus, Web filter, email filter log
messages, and other event log
messages.
312
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Filtering log messages
Filtering log messages
You can configure the logs that you want to record and the message categories that
you want to record in each log.
To filter log entries
1
2
Go to Log&Report > Log Setting.
Select Config Policy for the log location that you selected in “Recording logs” on
3
Select the log types that you want the FortiGate unit to record.
Traffic Log
Event Log
Record all connections to and through the interface.
Record management and activity events in the event log.
Management events include changes to the system configuration as well
as administrator and user logins and logouts. Activity events include
system activities, such as VPN tunnel establishment and HA failover
events.
Virus Log
Record virus intrusion events, such as when the FortiGate unit detects a
virus, blocks a file type, or blocks an oversized file or email.
Web Filtering Log Record activity events, such as URL and content blocking, and exemption
of URLs from blocking.
Attack Log
Email Filter Log
Update
Record attacks detected by the NIDS and prevented by the NIDS
Prevention module.
Record activity events, such as detection of email that contains unwanted
content and email from unwanted senders.
Record log messages when the FortiGate connects to the FDN to
download antivirus and attack updates.
4
5
Select the message categories that you want the FortiGate unit to record if you
selected Event Log, Virus Log, Web Filtering Log, Attack Log, Email Filter Log, or
Update in step 3.
Select OK.
FortiGate-800 Installation and Configuration Guide
313
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring traffic logging
Logging and reporting
Figure 79: Example log filter configuration
Configuring traffic logging
You can configure the FortiGate unit to record traffic log messages for connections to:
•
•
•
An interface
A VLAN subinterface
A firewall policy
The FortiGate unit can filter traffic logs for a source and destination address and
service. You can also enable the following global settings:
•
•
resolve IP addresses to host names,
display the port number or service.
The traffic filter list displays the name, source address and destination address, and
the protocol type of the traffic to be filtered.
This section describes:
•
•
•
314
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Configuring traffic logging
Enabling traffic logging
You can enable logging on any interface, VLAN subinterface, and firewall policy.
Enabling traffic logging for an interface
If you enable traffic logging for an interface, all connections to and through the
interface are recorded in the traffic log.
To enable traffic logging for an interface
1
2
Go to System > Network > Interface.
Select Edit
in the Modify column beside the interface for which you want to
enable logging.
3
4
5
For Log, select Enable.
Select OK.
Repeat this procedure for each interface for which you want to enable logging.
Enabling traffic logging for a VLAN subinterface
If you enable traffic logging for a VLAN subinterface, all connections to and through
the VLAN subinterface are recorded in the traffic log.
To enable traffic logging for a VLAN subinterface
1
2
Go to System > Network > Interface.
Select Edit
in the Modify column beside the VLAN subinterface for which you
want to enable logging.
For Log, select Enable.
Select OK.
3
4
5
Repeat this procedure for each VLAN subinterface for which you want to enable
logging.
Enabling traffic logging for a firewall policy
If you enable traffic logging for a firewall policy, all connections accepted by the
firewall policy are recorded in the traffic log.
To enable traffic logging for a firewall policy
Go to Firewall > Policy.
Select a policy tab.
1
2
3
4
Select Log Traffic.
Select OK.
FortiGate-800 Installation and Configuration Guide
315
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring traffic logging
Logging and reporting
Configuring traffic filter settings
You can configure the information recorded in all traffic log messages.
To configure traffic filter settings
1
2
Go to Log&Report > Log Setting > Traffic Filter.
Select the settings that you want to apply to all traffic log messages.
Resolve IP
Select Resolve IP if you want traffic log messages to list the IP address
and domain name stored on the DNS server. If the primary and secondary
DNS server addresses provided to you by your ISP have not already been
added, go to System > Network > DNS and add the addresses.
Display
Select Port Number if you want traffic log messages to list the port
number, for example, 80/tcp. Select Service Name if you want traffic log
messages to list the name of the service, for example, TCP.
3
Select Apply.
Figure 80: Example traffic filter list
Adding traffic filter entries
Add entries to the traffic filter list to filter the messages that are recorded in the traffic
log. If you do not add any entries to the traffic filter list, the FortiGate unit records all
traffic log messages. You can add entries to the traffic filter list to limit the traffic logs
that are recorded. You can log traffic with a specified source IP address and netmask,
to a destination IP address and netmask, and for a specified service. A traffic filter
entry can include any combination of source and destination addresses and services.
To add an entry to the traffic filter list
1
2
3
Go to Log&Report > Log Setting > Traffic Filter.
Select New.
Configure the traffic filter for the type of traffic that you want to record on the traffic log.
Name
Type a name to identify the traffic filter entry.
The name can contain numbers (0-9), uppercase and lowercase
letters (A-Z, a-z), and the special characters - and _. Spaces and
other special characters are not allowed.
Source IP Address
Source Netmask
Type the source IP address and netmask for which you want the
FortiGate unit to log traffic messages. The address can be an
individual computer, subnetwork, or network.
316
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Viewing logs saved to memory
Destination IP Address Type the destination IP address and netmask for which you want the
FortiGate unit to log traffic messages. The address can be an
individual computer, subnetwork, or network.
Destination Netmask
Service
Select the service group or individual service for which you want the
FortiGate unit to log traffic messages.
4
Select OK.
The traffic filter list displays the new traffic address entry with the settings that you
Figure 81: Example new traffic address entry
Viewing logs saved to memory
If the FortiGate unit is configured to save log messages in system memory, you can
use the web-based manager to view, search, and clear the log messages. This
section describes:
•
•
Viewing logs
Log messages are listed with the most recent message at the top.
To view log messages saved in system memory
1
2
Go to Log&Report > Logging.
Select Event Log, Attack Log, Antivirus Log, Web Filter Log, or Email Filter Log.
The web-based manager lists the log messages saved in system memory.
3
Scroll through the log messages to view them.
FortiGate-800 Installation and Configuration Guide
317
Download from Www.Somanuals.com. All Manuals Search And Download.
Viewing and managing logs saved to the hard disk
Logging and reporting
4
5
To view a specific line in the log, type a line number in the Go to line field and select
.
To navigate through the log message pages, select Go to next page
previous page
or Go to
.
Searching logs
To search log messages saved in system memory
1
2
3
4
5
Go to Log&Report > Logging.
Select Event Log, Attack Log, Antivirus Log, Web Filter Log, or Email Filter Log.
Select to search the messages in the selected log.
Select AND to search for messages that match all the specified search criteria.
Select OR to search for messages that match one or more of the specified search
criteria.
6
Select either of the following search criteria:
Keyword
Time
To search for any text in a log message. Keyword searching is
case-sensitive.
To search log messages created during the selected year, month, day, and
hour.
7
Select OK to run the search.
The web-based manager displays the messages that match the search criteria. You
can scroll through the messages or run another search.
Note: After you run a search, if you want to display all log messages again, run another search
but leave all the search fields blank.
Viewing and managing logs saved to the hard disk
If your FortiGate unit contains a hard disk for recording logs, you can use the following
procedures to view, search, and maintain logs:
•
•
•
•
•
318
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Viewing and managing logs saved to the hard disk
Viewing logs
Log messages are listed with the most recent message at the top.
To view the active or saved logs
1
2
Go to Log&Report > Logging.
Select Traffic Log, Event Log, Attack Log, Antivirus Log, Web Filter Log, or Email Filter
Log.
The web-based manager lists all saved logs of the selected type, with the active log at
the top of the list. For each log, the list shows the date and time at which an entry was
last added to the log, the size of the log file, and its name.
3
4
5
To view a log file, select View
.
The web-based manager displays the messages in the selected log.
You can set the number of log messages to view on a single page to 30, 50 or 1000.
You can scroll through the log entries.
6
7
8
To view a specific line in the log file, type a line number in the Go to line field and
select
To navigate through the log message pages, select Go to next page
previous page
To search the messages in the log file that you are viewing, select
.
or Go to
.
.
Searching logs
To search the active log or the saved log files
Go to Log&Report > Logging.
1
2
Select Traffic Log, Event Log, Attack Log, Antivirus Log, Web Filter Log, or Email Filter
Log.
3
4
5
6
To view a log file, select View
.
Select to search the messages in the log file that you are viewing.
Select AND to search for messages that match all the specified search criteria.
Select OR to search for messages that match one or more of the specified search
criteria.
7
Select one or more of the following search criteria:
Keyword
To search for any text in a log message. Keyword searching is
case-sensitive.
Source
Destination
Time
To search for any source IP address.
To search for any destination IP address.
To search log messages created during the selected year, month, day, and
hour.
8
Select OK to run the search.
The web-based manager displays the messages that match the search criteria. You
can scroll through the messages or run another search.
FortiGate-800 Installation and Configuration Guide
319
Download from Www.Somanuals.com. All Manuals Search And Download.
Viewing and managing logs saved to the hard disk
Logging and reporting
Note: After you run a search, if you want to display all log messages again, run another search
but leave all the search fields blank.
Downloading a log file to the management computer
You can download log files to the management computer as plain text files or comma-
separated value (CSV) files. After downloading, you can view the text file with a text
editor or the CSV file using a spreadsheet program.
To download log files
1
2
Go to Log&Report > Logging.
Select Traffic Log, Event Log, Attack log, Antivirus Log, Web Filter Log, or Email Filter
Log.
3
4
Select Download
for the log file to the management computer
Select a format for the log file:
•
•
Select Download file in the normal format to download the log messages to a text
file. Each line of the text file consists of a log message. The messages are
formatted the same way as they appear on the web-based manager.
Select Download file in CSV format to download the log messages to a text file in
CSV format. In this format, a comma is added between each field in each
message. If you open this file in a spreadsheet, each message field appears in a
separate column.
5
Select Save.
Deleting all messages from an active log
To delete all messages from an active log
1
2
Go to Log&Report > Logging.
Select Traffic Log, Event Log, Attack log, Antivirus Log, Web Filter Log, or Email Filter
Log.
3
4
Select Empty Log
.
Select OK to delete the messages.
Deleting a saved log file
To delete a saved log file
1
2
Go to Log&Report > Logging.
Select Traffic Log, Event Log, Attack log, Antivirus Log, Web Filter Log, or Email Filter
Log.
The web-based manager lists all saved logs of the selected type, with the active log at
the top of the list. For each log, the list shows the date and time at which an entry was
last added to the log, the size of the log file, and its name.
3
4
To delete a saved log file, select Delete
Select OK to delete the log file.
.
320
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Logging and reporting
Configuring alert email
Configuring alert email
You can configure the FortiGate unit to send alert email to up to three email addresses
when there are virus incidents, block incidents, network intrusions, and other firewall
or VPN events or violations. After you set up the email addresses, you can test the
settings by sending test email.
•
•
•
Adding alert email addresses
Because the FortiGate unit uses the SMTP server name to connect to the mail server,
the FortiGate unit must look up this name on your DNS server. Before you configure
alert email, make sure that you configure at least one DNS server.
To add a DNS server
1
2
Go to System > Network > DNS.
If they are not already there, type the primary and secondary DNS server addresses
provided by your ISP.
3
Select Apply.
To add alert email addresses
1
2
3
Go to Log&Report > Alert Mail > Configuration.
Select the Authentication check box if your email server requires an SMTP password.
In the SMTP Server field, type the name of the SMTP server where you want the
FortiGate unit to send email, in the format smtp.domain.com.
The SMTP server can be located on any network connected to the FortiGate unit.
4
5
This address appears in the From header of the alert email.
In the Password field, type the password that the SMTP user needs to access the
SMTP server.
A password is required if you select Authentication.
6
7
Type up to three destination email addresses in the Email To fields.
These are the email addresses to which the FortiGate unit sends alert email.
Select Apply.
Testing alert email
You can test the alert email settings by sending a test email.
To send a test email
1
2
Go to Log&Report > Alert Mail > Configuration.
Select Test to send test email messages from the FortiGate unit to the Email To
addresses.
FortiGate-800 Installation and Configuration Guide
321
Download from Www.Somanuals.com. All Manuals Search And Download.
Configuring alert email
Logging and reporting
Enabling alert email
You can configure the FortiGate unit to send alert email in response to virus incidents,
intrusion attempts, and critical firewall or VPN events or violations. If you have
configured logging to a local disk, you can enable sending an alert email when the
hard disk is almost full.
To enable alert email
1
2
Go to Log&Report > Alert Mail > Categories.
Select Enable alert email for virus incidents.
Alert email is not sent when antivirus file blocking deletes a file.
3
4
5
Select Enable alert email for block incidents to have the FortiGate unit send an alert
email when it blocks files affected by viruses.
Select Enable alert email for intrusions to have the FortiGate unit send an alert email
to notify the system administrator of attacks detected by the NIDS.
Select Enable alert email for critical firewall/VPN events or violations to have the
FortiGate unit send an alert email when a critical firewall or VPN event occurs.
Critical firewall events include failed authentication attempts.
Critical VPN events include when replay detection detects a replay packet. Replay
detection can be configured for both manual key and AutoIKE Key VPN tunnels.
6
7
Select Send alert email when disk is full to have the FortiGate unit send an alert email
when the hard disk is almost full.
Select Apply.
322
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Glossary
Connection: A link between machines, applications,
processes, and so on that can be logical, physical, or
both.
Internal interface: The FortiGate interface that is
connected to an internal (private) network.
Internet: A collection of networks connected together
that span the entire globe using the NFSNET as their
backbone. As a generic term, it refers to any collection
of interdependent networks.
DMZ, Demilitarized Zone: Used to host Internet
services without allowing unauthorized access to an
internal (private) network. Typically, the DMZ contains
servers accessible to Internet traffic, such as Web
(HTTP) servers, FTP servers, SMTP (email) servers
and DNS servers.
ICMP, Internet Control Message Protocol: Part of the
Internet Protocol (IP) that allows for the generation of
error messages, test packets, and information
messages relating to IP. This is the protocol used by
the ping function when sending ICMP Echo Requests
to a network host.
DMZ interface: The FortiGate interface that is
connected to a DMZ network.
DNS, Domain Name Service: A service that converts
symbolic node names to IP addresses.
IKE, Internet Key Exchange: A method of
automatically exchanging authentication and
encryption keys between two secure servers.
Ethernet: A local-area network (LAN) architecture that
uses a bus or star topology and supports data transfer
rates of 10 Mbps. Ethernet is one of the most widely
implemented LAN standards. A newer version of
Ethernet, called 100 Base-T (or Fast Ethernet),
supports data transfer rates of 100 Mbps. And the
newest version, Gigabit Ethernet, supports data rates
of 1 gigabit (1,000 megabits) per second.
IMAP, Internet Message Access Protocol: An
Internet email protocol that allows access to your email
from any IMAP compatible browser. With IMAP, your
mail resides on the server.
IP, Internet Protocol: The component of TCP/IP that
handles routing.
External interface: The FortiGate interface that is
connected to the Internet. For the FortiGate-60 the
external interface is WAN1 or WAN2.
IP Address: An identifier for a computer or device on a
TCP/IP network. An IP address is a 32-bit numeric
address written as four numbers separated by periods.
Each number can be zero to 255.
FTP, File transfer Protocol: An application and TCP/
IP protocol used to upload or download files.
Gateway: A combination of hardware and software that
links different networks. Gateways between TCP/IP
networks, for example, can link different subnetworks.
L2TP, Layer Two (2) Tunneling Protocol: An
extension to the PPTP protocol that enables ISPs to
operate Virtual Private Networks (VPNs). L2TP merges
PPTP from Microsoft and L2F from Cisco Systems. To
create an L2TP VPN, your ISP’s routers must support
L2TP.
HTTP, Hyper Text Transfer Protocol: The protocol
used by the World Wide Web. HTTP defines how
messages are formatted and transmitted, and what
actions Web servers and browsers should take in
response to various commands.
IPSec, Internet Protocol Security: A set of protocols
that support secure exchange of packets at the IP
layer. IPSec is most often used to support VPNs.
HTTPS: The SSL protocol for transmitting private
documents over the Internet using a Web browser.
FortiGate-800 Installation and Configuration Guide
323
Download from Www.Somanuals.com. All Manuals Search And Download.
Glossary
LAN, Local Area Network: A computer network that
spans a relatively small area. Most LANs connect
workstations and personal computers. Each computer
on a LAN is able to access data and devices anywhere
on the LAN. This means that many users can share
data as well as physical resources such as printers.
PPP, Point-to-Point Protocol: A TCP/IP protocol that
provides host-to-network and router-to-router
connections.
PPTP, Point-to-Point Tunneling Protocol: A
Windows-based technology for creating VPNs. PPTP
is supported by Windows 98, 2000, and XP. To create a
PPTP VPN, your ISP's routers must support PPTP.
MAC address, Media Access Control address: A
hardware address that uniquely identifies each node of
a network.
Port: In TCP/IP and UDP networks, a port is an
endpoint to a logical connection. The port number
identifies what type of port it is. For example, port 80 is
used for HTTP traffic.
MIB, Management Information Base: A database of
objects that can be monitored by an SNMP network
manager.
Protocol: An agreed-upon format for transmitting data
between two devices. The protocol determines the type
of error checking to be used, the data compression
method (if any), how the sending device indicates that
it has finished sending a message, and how the
receiving device indicates that it has received a
message.
Modem: A device that converts digital signals into
analog signals and back again for transmission over
telephone lines.
MTU, Maximum Transmission Unit: The largest
physical packet size, measured in bytes, that a network
can transmit. Any packets larger than the MTU are
divided into smaller packets before being sent. Ideally,
you want the MTU your network produces to be the
same as the smallest MTU of all the networks between
your machine and a message's final destination. If your
messages are larger than one of the intervening MTUs,
they get broken up (fragmented), which slows down
transmission speeds.
RADIUS, Remote Authentication Dial-In User
Service: An authentication and accounting system
used by many Internet Service Providers (ISPs). When
users dial into an ISP they enter a user name and
password. This information is passed to a RADIUS
server, which checks that the information is correct,
and then authorizes access to the ISP system.
Netmask: Also called subnet mask. A set of rules for
omitting parts of a complete IP address to reach a
target destination without using a broadcast message.
It can indicate a subnetwork portion of a larger network
in TCP/IP. Sometimes referred to as an Address Mask.
Router: A device that connects LANs into an internal
network and routes traffic between them.
Routing: The process of determining a path to use to
send data to its destination.
Routing table: A list of valid paths through which data
can be transmitted.
NTP, Network Time Protocol: Used to synchronize
the time of a computer to an NTP server. NTP provides
accuracies to within tens of milliseconds across the
Internet relative to Coordinated Universal Time (UTC).
Server: An application that answers requests from
other devices (clients). Used as a generic term for any
device that provides services to the rest of the network
such as printing, high capacity storage, and network
access.
Packet: A piece of a message transmitted over a
packet-switching network. One of the key features of a
packet is that it contains the destination address in
addition to the data. In IP networks, packets are often
called datagrams.
SMTP, Simple Mail Transfer Protocol: In TCP/IP
networks, this is an application for providing mail
delivery services.
Ping, Packet Internet Grouper: A utility used to
determine whether a specific IP address is accessible.
It works by sending a packet to the specified address
and waiting for a reply.
SNMP, Simple Network Management Protocol: A set
of protocols for managing networks. SNMP works by
sending messages to different parts of a network.
SNMP-compliant devices, called agents, store data
about themselves in Management Information Bases
(MIBs) and return this data to the SNMP requesters.
POP3, Post Office Protocol: A protocol used to
transfer e-mail from a mail server to a mail client across
the Internet. Most e-mail clients use POP.
324
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Glossary
SSH, Secure shell: A secure Telnet replacement that
you can use to log into another computer over a
network and run commands. SSH provides strong
secure authentication and secure communications
over insecure channels.
UDP, User Datagram Protocol: A connectionless
protocol that, like TCP, runs on top of IP networks.
Unlike TCP, UDP provides very few error recovery
services, offering instead a direct way to send and
receive datagrams over an IP network. It is used
primarily for broadcasting messages over a network.
Subnet: A portion of a network that shares a common
address component. On TCP/IP networks, subnets are
defined as all devices whose IP addresses have the
same prefix. For example, all devices with IP
addresses that start with 100.100.100. would be part of
the same subnet. Dividing a network into subnets is
useful for both security and performance reasons.
IP networks are divided using a subnet mask.
VPN, Virtual Private Network: A network that links
private networks over the Internet. VPNs use
encryption and other security mechanisms to ensure
that only authorized users can access the network and
that data cannot be intercepted.
Virus: A computer program that attaches itself to other
programs, spreading itself through computers or
networks by this mechanism usually with harmful
intent.
Subnet Address: The part of the IP address that
identifies the subnetwork.
Worm: A program or algorithm that replicates itself
over a computer network, usually through email, and
performs malicious actions, such as using up the
computer's resources and possibly shutting the system
down.
TCP, Transmission Control Protocol: One of the
main protocols in TCP/IP networks. TCP guarantees
delivery of data and also guarantees that packets will
be delivered in the same order in which they were sent.
FortiGate-800 Installation and Configuration Guide
325
Download from Www.Somanuals.com. All Manuals Search And Download.
Glossary
326
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
FortiGate-800 Installation and Configuration Guide Version 2.50
Index
alert email
A
accept
action
active log
allow inbound
allow outbound
allow traffic
Anti-Virus & Web filter
antivirus definition updates
antivirus definitions
attack definition updates
addressing mode
attack definitions
attack detection
attack prevention
admin access level
administrative access
administrative status
administrator account
FortiGate-800 Installation and Configuration Guide
327
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
attack updates
Comments
connecting
contact information
auto
automatic antivirus and attack definition updates
content blocking
content profiles
B
cookies
backing up
critical firewall events
bandwidth
critical VPN events
banned word list
blacklist
block traffic
blocking
D
date and time setting
default gateway
deny
C
certificates
checksum verification
clearing
destination
destination route
detection
device
328
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
DHCP
expire
F
factory default
dialup L2TP
FDN
dialup PPTP
FDS
filename pattern
dialup VPN
DMZ interface
filter
DNS
firewall
do not log
domain
firewall address
downloading
dynamic IP list
firewall events
firewall policy
dynamic IP pool
E
email alert
firmware
encrypt
first trap receiver IP address
FortiCare
Fortinet support
encrypt policy
ending IP address
FortiGate-800 Installation and Configuration Guide
329
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
interface
from IP
from port
front keypad and LCD
G
get community
groups
internal address
internal address group
H
internal network
Internet
hard disk
intrusion attempts
IP
IP address
IP addresses
IP pool
hard disk full
HTTP
I
ICMP service
IP service
idle timeout
IDS log
Inbound NAT
330
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
IPSec VPN
Log Traffic
IPSec VPN tunnel
J
K
keyword
L
L2TP gateway
language
LCD and keypad
LDAP
logs
LDAP server
M
malicious scripts
management access
management IP address
manual IP address
lease duration
log file
log hard disk
log message
log options
manual keys
log setting
matching
log to local
messages
log to memory
MIB
FortiGate-800 Installation and Configuration Guide
331
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
mode
override serve
oversized files and email
monitor
monitoring
overwrite
P
password
N
NAT
pattern
permission
ping server
NAT mode
NAT/Route mode
policy
netmask
network address translation
policy list
port number
O
PPPoE
operating mode
options
Outbound NAT
332
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
PPTP dialup connection
PPTP gateway
registered FortiGate units
registering
registration
pre-shared keys
relay
prevention
protocol
replacement messages
reserved IP
push update
reverting
RIP
Q
quarantine list
quarantining
quick mode identifier
RMA
route
R
RADIUS
router
RADIUS server
read & write access level
read only access level
recovering
S
scanning
FortiGate-800 Installation and Configuration Guide
333
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
SNMP
scheduled updates
scope
source
scripts
secondary IP
security question
starting IP
serial number
static route
status
server
service contracts
service group
service name
session
subnet
subnet address
support contract number
support password
system date and time
system location
system name
system options
334
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
system settings
U
UDP
unwanted content
T
updated
updating
upgrade
upgrading
TCP
testing
time
URL
URL block list
timeout
to IP
to port
traffic
URL exempt list
use selectors from policy
use wildcard selectors
user groups
traffic filter
trap community
user name and password
user-defined interface
user-defined signature
traps
trusted host
V
FortiGate-800 Installation and Configuration Guide
335
Download from Www.Somanuals.com. All Manuals Search And Download.
Index
viewing
W
web content filtering
web filtering
virtual domain
web page
virus definition updates
virus definitions
virus incidents
WebTrends
Windows 2000
Windows 98
virus list
Windows XP
virus protection
wizard
VLAN
VPN
worm list
VPN events
Z
zone
VPN tunnel
336
Fortinet Inc.
Download from Www.Somanuals.com. All Manuals Search And Download.
|