Intel Network Router 8205 User Manual

®
Intel Express 8205 and  
8205 with VPN Routers  
Quick Start  
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Copyright © 2000, Intel® Corporation. All rights reserved.  
Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro OR 97124-6497  
Intel Corporation assumes no responsibility for errors or omissions in this manual. Nor does Intel make any commitment to update the  
information contained herein.  
* Other product and corporate names may be trademarks of other companies and are used only for explanation and  
to the owners’ benefit, without intent to infringe.  
First Edition  
October 2000  
A43586-001  
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Contents  
Quick Start  
1
2
Install the Router Hardware ............... 2  
Select a Scenario............................... 3  
Scenario Descriptions....................................4  
Firewall Filters and NAT ...............................10  
Using the VPN Option ..................................11  
Configuring a VPN Tunnel ............................12  
VPN Tunnel Examples ..................................13  
VPN Tunnel Worksheet.................................15  
1
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Install the Router Hardware  
Install the Router  
Hardware  
1
LAN 1:  
Connect  
to local  
network  
1
Connect  
to power  
source  
4
See “About  
the Console  
Port” below.  
Connect the LAN 1 port to your  
local network  
1 Connect the LAN 1 port to the local  
network or the Ethernet port of a PC,  
using the provided blue cable.  
Input  
5.1VDC/2.6A  
Console  
Hub  
II  
PC  
X
Recovery  
Power  
LAN 2  
10 Mbps  
LAN 1  
100 Mbps  
MAC  
ADDRESS  
CASE  
00AA00D1865D  
ASSY  
123456 789  
10  
/
2 Set the HUB/PC switch to Hub when  
connecting to a network hub or Ethernet  
switch, and PC when connecting  
directly to a PC.  
user  
supplied  
Set switch:  
2
LAN 2:  
Connect  
to DSL or  
cable  
3
Hub II for hub or  
Connect the LAN 2 port to your  
DSL or cable modem  
switch  
PC X for single  
modem  
computer  
3 Connect the LAN 2 port to your DSL or  
cable modem. Use the appropriate cable  
that came with your modem.  
Figure 1. Connecting the Express 8205 Router.  
Connect the power  
4 Connect the router to a power source  
(100-250 V AC) using the provided  
power supply and cord.  
LAN 1 and LAN 2 LEDs  
Check the LEDs  
Green - port is operational.  
If the Status, LAN 1, and LAN 2 LEDs are  
all green, the router begins to assign a set of  
pre-configured IP addresses to your local  
network using its DHCP server.  
Orange - port is down. Check cables.  
Status LED  
Green blinking - router is using factory default settings  
and ready for configuration.  
Red - error, router is not operational.  
If any LEDs are red, orange, or off:  
Figure 2. Check Status and LAN LEDs.  
• Make sure the PC/Hub switch is set  
correctly, as described in step 2 above.  
About the Console Port  
• Make sure all the cables are securely  
connected to the correct devices as  
described in the steps above.  
You can use the console port to manage the  
router with Local Management, through a  
directly connected workstation. See the Online  
®
Documentation on the Intel Device View CD-  
ROM for information about managing the router  
if you do not have a Windows-based operating  
system, or if you are using Telnet to manage the  
router from a remote location.  
2
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Select a Scenario  
LAN 1 port connects  
to the local network, and the  
router’s DHCP server assigns  
IP addresses to the LAN  
Select a Scenario  
2
PC  
®
Intel Router  
Intel Router  
This guide describes four scenarios in  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
®
ISP  
which you can connect the router to the  
Internet through a DSL or cable modem.  
xDSL/cable  
modem  
PC  
Scenario 1: Router is the DHCP  
Server  
LAN 2 port gets dynamic  
IP address from ISP  
7068  
In this scenario, the LAN PCs are config-  
Figure 3. Scenario 1 - LAN PCs Get IP Address from  
Router’s DHCP Server. You can access the Internet  
through your DSL or cable modem once you have  
connected the router cables. See page 4 for information.  
ured as DHCP clients, and you do not need  
to do any configuration other than installing  
the router and connecting cables. As long as  
the PCs on your LAN request IP configura-  
tion from a DHCP server, the router assigns  
a preset range of IP addresses to your LAN.  
See page 4.  
LAN 1 port connects  
to the local network  
PC  
®
Intel Router  
About scenarios 2, 3, and 4  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
ISP  
xDSL/cable  
modem  
Before configuring the router for these  
scenarios, you must install Intel® Device  
View as described on page 5.  
PC  
LAN 2 port gets dynamic  
IP address from ISP  
7069  
DHCP Server  
Scenario 2: Cable Modem  
Existing DHCP  
server assigns  
In this scenario, as shown in Figure 8 on  
page 6, you connect the LAN 2 port to a  
cable modem. Your ISP (Internet service  
provider) provides a dynamic IP address  
and a name to identify the router, which you  
must configure. See page 6.  
LAN IP addresses  
Figure 4. Scenario 3 - Existing DHCP Server on  
LAN. For instructions on setting up this scenario,  
see page 7.  
LAN 1 port connects  
to the local network  
Scenario 3: Existing DHCP Server  
In this scenario, your LAN uses an existing  
DHCP server. You must change the router’s  
default LAN 1 IP address and disable the  
router’s DHCP server. See page 7.  
PC  
®
Intel Router  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
ISP/  
Internet  
xDSL/cable  
modem  
PC  
LAN 2 port gets static  
IP address from ISP  
Scenario 4: Static IP from ISP  
In this scenario, the LAN 2 port uses a static  
(permanent) IP address assigned by the ISP  
each time the modem connects to the  
E-mail Server  
Internet users must be  
able to access this internal  
e-mail server  
7071  
Internet. You can also configure the router  
to allow access to internal servers on the  
local network from the Internet (such as an  
e-mail or Web server). See page 9.  
Figure 5. Scenario 4 - Static IP Address on  
LAN 2. For instructions on setting up this scenario,  
see page 9.  
3
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Scenario Descriptions  
Scenario 1  
LAN 2 port  
Dynamic IP address  
from ISP  
LAN 1 port  
192.168.1.1  
LAN PCs Get IP Address from  
DHCP Server on Router  
PC  
192.168.1.2  
®
Intel Router  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
ISP  
• The default IP address on the router’s LAN 1  
port is 192.168.1.1. The router automatically  
assigns IP addresses sequentially to the hosts  
(PCs and servers, for example) on your LAN,  
using the address range from 192.168.1.2 to  
192.168.1.254.  
xDSL/cable  
modem  
PC  
192.168.1.3  
Router’s DHCP  
server configures  
LAN  
7076  
Figure 6. This scenario does not require any  
configuration on the router.  
• The LAN 2 port accepts an IP address from the  
ISP, and the router automatically configures  
your LAN. As long as your DSL or cable  
modem is working properly and has a connec-  
tion to the Internet, you are finished with  
setting up this scenario. The PCs on your LAN  
can now access the Internet.  
Parameter  
Setting  
LAN 1 IP Address  
192.168.1.1  
Enabled  
DHCP Server  
Start of Address Range  
Last Address in Range  
Network Address Translation  
192.168.1.2  
192.168.1.254  
Enabled  
Network address translation (NAT) and  
security  
Table 1. Router’s factory default settings. The  
settings shown in this table allow the router to work in  
this scenario with no further configuration.  
In this scenario, the router automatically maps the  
dynamic IP address you receive from the ISP to the  
internal IP addresses it assigns to the LAN.  
The NAT mappings provide adequate security to  
prevent access to your network from the Internet.  
However, you can set up firewall filters to limit  
access to the Internet from the internal LAN (for  
example, to allow LAN users access to only e-mail  
and WWW traffic through the Internet connection).  
See page 10 for more information.  
To reset the router to factory defaults:  
1 Press the Recovery button located on the  
back of the router. After a few seconds the  
Status LED blinks orange.  
2 Press and hold the Recovery button until the  
LEDs begin to blink in sequence. When the  
Status LED blinks green, the router is set to  
factory default.  
4
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Scenario Descriptions  
Install Intel® Device View for  
Scenarios 2, 3, and 4  
®
We recommend using Intel Device View (manage-  
ment software provided with the router) to configure  
the router for scenarios 2, 3, and 4. Intel Device  
View manages and configures the router from a PC  
running Microsoft Windows* 95, 98, 2000, or  
Windows NT* 4.0.  
Install Intel Device View  
Figure 7. Intel Device View Installation. Choose Install  
for Windows, then follow the screen instructions in the  
installation wizard.  
1 Insert the Intel Device View CD-ROM in your  
computer’s CD-ROM drive.  
If the installation screen does not appear within 10  
seconds, run the autoplay.exe file on the CD-  
ROM.  
2 Click Install for Windows.  
The other installation options do not apply to the  
scenarios described in this guide. See the Online  
Documentation for more information about the  
Install for Web and Install as Plug-in options.  
For non-Windows* operating systems:  
Consult the Online Documentation on the Intel  
Device View CD for information on configuring  
the router through Local Management. You can  
access Local Management through Telnet or  
directly through the console port on the router.  
3 Follow the screen instructions to complete the  
installation.  
4 Select Launch Intel Device View on the final  
wizard dialog box, and then continue with the  
instructions for your scenario.  
Scenario 2 - Connecting to a Cable Modem  
See page 6  
To view the Online Documentation:  
• In Intel Device View, select Online  
Documentation from the Help menu  
Scenario 3 -Existing DHCP Server on LAN  
See page 7  
• If you are not using Intel Device View, open the  
Index.htm file located in the \Manuals\Router  
User Guide folder on the Intel Device View  
CD-ROM.  
Scenario 4 - Static IPAddress from ISP  
See page 9  
Firewall Filters and NAT for Scenarios 2, 3, and 4  
See page 10  
5
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Scenario Descriptions  
Scenario 2  
LAN 1 port connects  
to the local network  
using this IP address:  
ISP uses a name to  
identify the router on the  
cable modem connection  
Connecting to a Cable  
192.168.1.1  
Modem  
PC  
®
Intel Router  
Intel Router  
If you are connecting the LAN 2 port to a cable  
modem for Internet access, some ISPs require that  
you configure a name to identify the router. Check  
your Internet subscription to see if your ISP requires  
this setting. The name of this setting depends on  
your ISP, but alternative names include Device  
Name, System Name, Host Name, or Account  
Name.  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
T
est Mode  
ISP/  
Internet  
Cable  
PC  
modem  
LAN 2 port gets dynamic  
IP address from ISP  
Server  
7077  
Figure 8. Cable modem with name to identify  
Enter the router name provided in your  
Internet subscription  
router. Some ISPs might require you to enter a  
name that identifies the router each time the cable  
modem connects to the Internet.  
1 From the Configuration menu, select Connection  
Setup.  
2 Double-click the LAN 2 port in the  
Ports/Connections list.  
3 On the first wizard screen, click “Connect to the  
Internet through a DSL modem”, and then click  
Next.  
5 Click Dynamic IPAddress from ISP (using  
DHCP).  
6 Type the Router Name provided by your ISP.  
Some ISPs might call this the Device Name,  
System Name, Host Name, or Account Name.  
Contact your ISP if you are not sure about this  
setting.  
Figure 9. Enter the Router Name. Select Dynamic  
IP Address and type the name assigned by your  
ISP.  
7 Click Next.  
Firewall filtering and local servers  
To increase security to your local LAN, or to  
manage the types of traffic allowed on the LAN,  
you can set up firewall filters. If you have any  
servers on your local LAN that must be accessible  
from the Internet, you need to set up the LAN 2 port  
to translate the internal server address to the  
external address received from the ISP. See page 10.  
6
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Scenario Descriptions  
Scenario 3  
Internet  
Existing DHCP Server on the  
LAN  
PC  
If your LAN uses an existing DHCP server, complete  
the following steps to get Internet access through the  
DSL/cable modem  
DSL or cable modem.  
Input  
5.1VDC/2.6A  
Console  
Hub  
II  
PC  
X
Connect a PC directly to the Router  
Recovery  
Power  
WAN  
LAN  
1
LAN  
2
MAC  
CASE  
ADDRESS  
00AA00D1865D  
ASSY  
123456 789  
10 Mbps  
10  
/ 100 Mbps  
1 Use the provided blue cable to connect a PC to the  
router’s LAN 1 port. You must temporarily  
remove this PC from the network.  
7070  
Set this switch to “PC”  
Figure 10. Connect a PC directly to the router.  
2 On the back of the router, set the Hub/PC switch  
to “PC”.  
3 Configure the PC to obtain an IP address from a  
DHCP server. See the documentation that came  
with your PC for instructions on this setting.  
4 Restart your PC; otherwise you will not be able to  
contact the router.  
Disable the DHCP server on the router  
®
1 If it is not already open, start Intel Device View.  
Figure 11. Open the router for management.  
2 In the Discovered Device Tree, expand the Subnet  
192.168.1 (see Figure 11).  
3 Double-click on 192.168.1.1 (the default IP  
address for LAN 1).  
4 From the Configuration menu, select DHCP  
Server Setup.  
5 Clear the Enable DHCP Server check box.  
6 Click OK.  
Figure 12. Disable the router’s DHCP server.  
7
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Scenario Descriptions  
Change the LAN 1 IP address  
1 From the Configuration menu, select Connection  
Setup.  
2 Double-click the LAN 1 port in the  
Ports/Connections list.  
3 Type a new IP address for the router, which must  
be within the range of IP addresses your DHCP  
server assigns (and on the same subnet as your  
LAN).  
4 Click OK.  
5 On the Connection Setup dialog, click Accept.  
Figure 13. Change the LAN 1 IP address. Type an IP  
address on the same subnet as your local network.  
6 From the Configuration menu, select Save to Flash  
Memory.  
7 Click Yes when asked if you want to proceed.  
Restore your network connections  
1 Disconnect the PC from the router (and reconnect  
it to the normal network).  
WWW server must  
be accessible  
from the Internet  
2 On the back of the router, set the Hub/PC switch  
to “Hub”.  
3 Connect the LAN 1 port on the router to the local  
network (to an Ethernet hub or switch, for  
example).  
Firewall filtering and local servers  
To increase security to your local LAN, or to manage  
the types of traffic allowed on the LAN, you can set  
up firewall filters. If you have any servers on your  
local LAN that must be accessible from the Internet,  
you need to set up the LAN 2 port to translate the  
internal server address to the external address  
DSL modem  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
Internet  
Intel® Router  
provides firewall  
filters  
7075  
Figure 14. Firewall filtering and access to servers  
on your LAN from the Internet.  
received from the ISP. See page 10.  
8
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Scenario Descriptions  
LAN 1 port connects  
Scenario 4  
to the local network  
using this IP address:  
192.168.1.1  
Static IP Address from ISP  
and Server Access on LAN 1  
In this scenario, you get a permanent (static) IP  
address from your ISP. The following section  
describes how to configure the static IP address. This  
section also describes how to set up firewall filters  
on the LAN 2 port, and allow access to local servers  
(such as WWW or e-mail) from the Internet.  
PC  
®
Intel Router  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
ISP/  
Internet  
xDSL/Cable  
modem  
PC  
LAN 2 port gets static  
IP address from ISP  
E-mail Server  
192.168.1.10  
Internet users must be  
able to access this internal  
e-mail server  
7072  
Figure 15. Scenario using a static IP address and  
internal servers accessible from the Internet.  
Configure a static IP address on LAN 2  
1 From the Configuration menu, select Connection  
Setup.  
2 Double-click the LAN 2 port in the  
Ports/Connections list.  
3 On the first wizard screen, click “Connect to the  
Internet through a DSL modem”, and then click  
Next.  
5 Click Static IP Address.  
6 Type the IPAddress and Network Mask assigned  
by your ISP.  
7 Type the ISP Gateway Address (the IP address of  
the ISP’s gateway router). Contact your ISP if you  
are not sure about this setting.  
Figure 16. Configure a static IP address on the  
LAN 2 port.  
8 Click Next. See the next page of this guide for  
instructions on the following wizard dialog boxes,  
if applicable.  
9
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Firewall Filters and NAT  
Firewall Filtering and NAT for  
Servers on the LAN  
This section describes how to set up firewall filters  
and NAT (network address translation) for servers on  
your LAN, using the LAN 2 port setup wizard.  
Create firewall filters for LAN users  
For added security, you can enable firewall filtering  
on the LAN 2 port. If you enable the firewall, then  
you must choose which types of traffic to allow  
through the firewall on the Internet connection. For  
example, in order for LAN users to browse the Web,  
you must enable the WWW firewall filter.  
Figure 17. Set up a firewall and filters.  
1 From Connection Setup dialog box, double-click  
the LAN 2 port.  
2 On the first wizard screen, click “Connect to the  
Internet through a DSL modem”, and then click  
Next.  
3 Fill out the IP Address dialog box as appropriate  
for your scenario, and then click Next.  
4 Select the Enable Firewall Filters check box.  
5 Select the check box corresponding to the types of  
traffic to allow from the LAN to the Internet, and  
then click Next.  
Access internal servers from the Internet  
Figure 18. Allow access to internal servers from the  
If you have servers on the internal LAN that must be  
accessible from the Internet (such as a mail server or  
a WWW server), configure the LAN 2 port to  
Internet.  
recognize these servers. The router automatically  
creates NAT (Network Address Translation) map-  
pings between the IP address the router receives from  
the ISP and the internal address used for the servers.  
1 Click the type of server to which the router should  
allow access from the Internet.  
2 Type the server IP address, which must be on the  
same subnet as the address range assigned by your  
DHCP server.  
3 Click Next and follow the screen instructions.  
10  
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Using the VPN Option  
Setting up a VPN Tunnel  
A VPN (virtual private network) tunnel is a connec-  
tion to a remote site over the public Internet. VPN  
tunnels are a cost effective solution for sending and  
receiving secure business data between two sites.  
®
If you ordered an Intel 8205 VPN router or  
®
purchased one of the VPN Options for Intel  
Express Routers separately, you can create a VPN  
over the Internet.  
A VPN provides the security of a private network  
without the costs associated with a wide area  
network (WAN). The costs for a VPN consist of only  
the subscription to an Internet service provider (ISP)  
and local calls to your ISP.  
Figure 19. Configuring a VPN Tunnel. Select  
Connection Setup from the Configuration menu.  
Note: You must have a working connection to the  
Internet (through the DSL or cable modem connected  
to the LAN 2 port) before you can add a VPN tunnel.  
To add a VPN tunnel  
1 Complete the VPN Tunnel Worksheet on  
page 15.  
2 If it is not already open, start Intel® Device View.  
3 From the Configuration menu, select Connection  
Figure 20. Connection Setup. To create a VPN tunnel,  
select Add Tunnel from the Port/Connection list and click  
Add Tunnel.  
Setup.  
4 Select Add Tunnel from the Port / Connection list  
in the Connection Setup dialog box, and then click  
the Add Tunnel button.  
5 Click Next in the Start dialog box of the wizard.  
For more information about VPN tunnels:  
The VPN Tunnel Wizard configures tunnels using  
default settings that work for most situations. You  
can modify the configuration using Advanced  
Setup, if necessary. Consult the Online Documen-  
tation on the Intel Device View CD for more  
information.  
6 On the Tunnel Identification dialog box:  
- type a Tunnel Name  
- type the Remote IP Address for the peer device  
- select LAN 2 as the Connection for Tunnel  
7 Follow the screen instructions throughout the rest  
of the wizard.  
11  
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VPN Tunnel Example 1  
VPN Tunnel From More Than  
One 8205 Router to the Same  
Branch office 1  
Subnet 192.168.1.0  
Remote Peer Device  
Central Site  
Subnet 10.3.4.0  
192.168.1.1  
I
n
t
e
l
R
o
u
t
e
r
Status  
LAN  
1
0
0
M
b
p
s
W
A
N
L
i
n
k
W
A
N
S
w
i
t
c
h
W
A
N
C
o
n
t
r
o
l
T
e
s
t
M
o
d
e
®
If you are configuring tunnels to a central site from  
more than one 8205 router, the tunnels will not work  
with the router’s factory default configuration. When  
more than one 8205 router establishes a tunnel to the  
same remote device, you must change the default IP  
configuration on the additional 8205 routers.  
®
Intel 8205  
Router  
xDSL/cable  
modem  
VPN Peer  
(gateway  
or router)  
10.3.4.1  
Internet  
(ISP)  
Branch office 2  
Subnet 192.168.2.0  
192.168.2.1  
I
n
t
e
l
R
o
u
t
e
r
Status  
LAN  
1
0
0
M
b
p
s
W
A
N
L
i
n
k
W
A
N
S
w
i
t
c
h
W
A
N
C
o
n
t
r
o
l
T
e
s
t
M
o
d
e
®
Intel 8205 xDSL/cable  
Router  
modem  
7074  
V
P
N
l
e
n
Tu  
n
The central site VPN device will not be able to  
recognize the difference between the local network at  
each remote site with the default configuration. The  
default IP subnet assigned to the LAN by the router  
is 192.168.1.0. You cannot have more than one  
tunnel configured to the same subnet.  
Figure 21. Example VPN Tunnels. Two tunnels to the  
same central site VPN device from more than one 8205  
router.  
Complete these basic steps:  
1 Change the default IP address of the router’s  
LAN 1 port.  
2 Change the range of addresses assigned by the  
router’s DHCP server.  
3 Start the VPN Tunnel wizard.  
Change the default IP address on LAN 1  
®
1 If it is not already open, start Intel Device View  
and open the router for management.  
2 From the Configuration menu, select Connection  
Setup.  
3 Double-click the LAN 1 port in the Ports/  
Connections list.  
4 Type the new IP address and network mask. Get  
this from the system administrator at the central  
site who configures the remote VPN peer device.  
Figure 22. Change the LAN 1 IP address. Type an IP  
address on the same subnet as your local network.  
5 Click OK.  
6 On the Connection Setup dialog, click Accept.  
7 From the Configuration menu, select Save to  
Flash Memory.  
Important! The PC you use to configure the router  
from now on must have an IP address on the same  
subnet as the router’s new IP address.  
12  
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VPN Tunnel Example 1  
Change the range of IP addresses used  
by the DHCP server  
Once you change the IP address of the router, you  
must change the range of IP addresses assigned by  
the DHCP server in the router. The range should be  
on the same subnet as the new IP address for the  
LAN 1 port. Find out what range to use from the  
system administrator of the remote peer device on  
the tunnel.  
Figure 23. Example VPN Tunnels. Two tunnels to the  
same central site from more than one 8205 router.  
1 From the Configuration menu, select DHCP  
Server Setup.  
2 Select the Enable DHCP Server check box.  
3 Click the first entry in the IP Addresses dialog  
box, and then click Edit.  
Branch Office 1  
Setting  
4 Type a new First IP Address and Last Address,  
and make sure the Network Mask matches the  
new address range.  
Remote IP Address  
Local User ID  
10.3.4.1  
remoteoffice1  
192.168.1.0  
255.255.255.0  
Local Network Address  
Local Network Mask  
5 Click OK, then click OK again.  
Remote Network Address 10.3.4.0  
Start the VPN Tunnel Wizard  
Remote Network Mask  
Encryption Algorithm  
255.255.255.0  
DES  
1 From the Configuration menu, select Connection  
Setup.  
Authentication Algorithm MD5  
Re-keying Interval  
1 Day  
2 Select Add Tunnel from the Port / Connection list  
in the Connection Setup dialog box, and then  
click the Add Tunnel button.  
Branch Office 2  
Setting  
Remote IP Address  
Local User ID  
10.3.4.1  
3 Fill in the parameters in each wizard dialog box,  
as appropriate for your setup. Table 2 shows the  
settings used for this example.  
remoteoffice2  
192.168.2.0  
255.255.255.0  
Local Network Address  
Local Network Mask  
Note: The values for the parameters in Table 2 are  
examples only; you must enter the values specific to  
your network.  
Remote Network Address 10.3.4.0  
Remote Network Mask  
Encryption Algorithm  
255.255.255.0  
DES  
Authentication Algorithm MD5  
Re-keying Interval 1 Day  
Table 2. Configuration Parameters. Settings used for  
this example when configuring the VPN tunnel using the  
VPN Tunnel Wizard.  
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VPN Tunnel Example 2  
Connecting Two Branch  
Offices  
Branch Office 1  
Local Network Address 192.168.1.0  
Two sites can use a VPN tunnel to send and receive  
secure business data over the Internet. The two sites  
could be two branch offices, a remote worker and a  
central office, a branch office and a central office, or  
your site and a business partner’s site. For more  
information, see the online documentation on the  
®
Intel 8205 Router  
Intel Router  
Status  
LAN  
100 Mbps  
WAN Link  
WAN Switch  
WAN Control  
Test Mode  
Connection to  
Internet with dynamic  
IP address  
xDSL/cable  
modem  
®
Intel Device View CD-ROM.  
Internet  
(ISP)  
Permanent  
connection to Internet with  
a fixed IP address  
Connecting two branch offices with a VPN tunnel  
enables both offices to share each other’s resources  
securely. Using a VPN tunnel saves the cost of  
dialing into a distant site; the only cost is that of  
connecting to the local Internet service provider  
(ISP).  
Fixed  
IP address  
®
Intel Router  
Status  
Intel Router  
LAN  
1
0
0
M
b
p
s
W
A
N
L
i
n
k
WAN Switch  
WAN Control  
T
e
s
t
M
o
d
e
175.123.45.1  
In this example, the IP address on the local side is  
dynamically assigned. Therefore, the Local User ID  
identifies the branch office, rather than a permanent  
external IP address. If the local router had a perma-  
nent IP address, then you would not have to enter a  
Local User ID. The IP address would identify the  
branch office.  
Branch Office 2  
Remote Network Address 175.123.45.0  
7073  
Figure 24. Example Branch Office to Branch Office  
VPN Tunnel. A VPN tunnel between two remote offices.  
Table 3 shows the configuration parameters used in  
the VPN Tunnel Wizard to create a tunnel for the  
Branch Office to Branch Office example.  
Parameter  
Setting  
Remote IP Address  
Local User ID  
175.123.45.1  
aradomsk23  
192.168.1.0  
255.255.255.0  
Note: The values for the parameters in Table 3 are  
examples only; you must enter the values specific to  
your network.  
Local Network Address  
Local Network Mask  
Remote Network Address 175.123.45.0  
Remote Network Mask  
Encryption Algorithm  
255.255.255.0  
DES  
Firewalls and network address translation  
If you are using firewall filters or network address  
translation (NAT) on the LAN 2 port, the VPN  
Tunnel Wizard modifies your settings to enable the  
tunnel.  
Authentication Algorithm MD5  
Re-keying Interval 1 Day  
Table 3. Configuration Parameters. Settings used for  
the Branch Office to Branch Office example when  
configuring the VPN tunnel using the VPN Tunnel Wizard.  
14  
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VPN Tunnel Worksheet  
These pages help you gather needed information to  
create a VPN Internet tunnel using the VPN Tunnel  
Networks and Security Profile  
Wizard.  
Local network address:  
VPN tunnels created with the VPN Tunnel Wizard  
use default settings for a number of parameters. If  
necessary, you can modify these parameters using  
Advanced Setup. Advanced Setup is accessible from  
Intel® Device View and from Local Management.  
For more information on configuring a VPN tunnel  
using Advanced Setup, see the Online  
(The network IP address for the local network sending  
and receiving data on this end of the tunnel.)  
Local network mask:  
(The network mask for the local network.)  
Documentation on the Intel Device View CD-ROM.  
Remote network address:  
Tunnel Identification  
Tunnel name:  
(The network IP address for the remote network  
sending and receiving data on the other end of the  
tunnel.)  
Remote network mask:  
(A name to identify the tunnel. The name can be  
up to 31 characters.)  
(The network mask for the remote network.)  
Remote IP address:  
Encryption Algorithm:  
(The IP address for the VPN device at the other  
end of the tunnel; the remote peer device.)  
(The type of encryption to use on the tunnel. The  
encryption algorithms supported on your device vary,  
depending on the VPN option that you purchased.)  
Connection for tunnel:  
LAN 2  
Authentication Algorithm  
(The connection to the ISP that the router uses to  
establish the VPN tunnel; select LAN 2 from the list for  
the 8205 router)  
m MD5  
m SHA-1  
m None  
(The type of authentication to use on the tunnel. SHA-1  
offers higher security, but also takes longer to process.  
MD5 is the standard used on most devices supporting  
IPSec.)  
Local user ID:  
(The user ID that identifies this router. Only required  
when using dynamically assigned IP addresses for the  
Internet.)  
p Re-keying Interval based on time  
Days:____Hours:____Minutes:____  
p Re-keying Interval based on traffic  
Traffic amount: ____ MB  
Shared Key  
(How often the device generates a new encryption key,  
based on time, traffic, or both. The interval must be at  
least 5 minutes, or at least 1 MB, and no greater than  
4194303 MB.)  
(The key is between 8 and 63 characters. For maximum  
security, enter a key that is as long as possible using a  
combination of numbers, letters, and symbols.)  
15  
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