Linksys Network Card BEFDSR41W User Manual

Instant Broadband™ Series  
ADSL Gateway  
Modem / Router / 4-Port Switch / Wireless-Ready  
Use this guide to install the following product:  
BEFDSR41W  
User Guide  
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Reorient or relocate the receiving antenna.  
No repairs may be done by the customer. If trouble is experienced with this equipment,  
please contact your authorized support provider for repair and warranty information. If  
the trouble is causing harm to the telephone network, the telephone company may  
request you remove the equipment from the network until the problem is resolved. This  
equipment cannot be used on telephone company provided coin service. Connection to  
Party Line Service is subject to state tariffs.  
Increase the separation between the equipment and the receiver.  
Connect the equipment to an outlet on a circuit different from that to which the receiv-  
er is connected.  
Consult a dealer or an experienced radio/TV technician for assistance.  
This device complies with Part 15 of the FCC Rules. Operation is subject to the follow-  
ing two conditions:  
SAFETY NOTICES  
This device may not cause harmful interference.  
This device must accept any interference received, including interference that may  
cause undesired operation.  
Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication  
line cord.  
Do not use this product near water, for example, in a wet basement or near a swim-  
ming pool.  
FCC PART 68 STATEMENT  
This equipment complies with Part 68 of the FCC Rules. A label is attached to the equip-  
ment that contains, among other information, its FCC registration number and ringer  
equivalence number. If requested, this information must be provided to the telephone  
company.  
Avoid using this products (other than a cordless type) during an electrical storm.  
There may be a remote risk of electric shock from lightning.  
This equipment uses the following USOC Jack: RJ-11.  
An FCC compliant telephone cord and modular plug is provided with this equipment.  
This equipment is designed to be connected to the telephone network or premises wiring  
using a compatible modular jack, which is FCC Part 68 compliant. Connection to the  
telephone network should be made by using the standard modular telephone jack.  
The REN is useful to determine the quantity of devices that may be connected to the tele-  
phone line and still have all of those devices ring when your telephone number is called.  
In most, but not all areas, the sum of RENs should not exceed 5. To be certain of the  
number of devices that may be connected to the line, as determined by the total RENs,  
contact the telephone company to determine the maximum REN for the calling area.  
If this equipment causes harm to the telephone network, the telephone company may  
discontinue your service temporarily. If advance notice is not practical, the telephone  
company will notify the customer as soon as possible. Also, you will be advised of your  
right to file a complaint with the FCC if you believe it is necessary.  
The telephone company may make changes in its facilities, equipment, operations, or  
procedures that could affect the operation of the equipment. If this happens, the tele-  
phone company will provide advance notice in order for you to make the necessary mod-  
ifications in order to maintain uninterrupted service.  
In the event this equipment should fail to operate properly, disconnect the unit from the  
telephone line. Try using another FCC approved device in the same telephone jack. If  
the trouble persists, call the telephone company repair service bureau. If the trouble  
does not persist and appears to be with this unit, disconnect the unit from the telephone  
line and discontinue use of the unit until it is repaired. Please note that the telephone  
company may ask that you disconnect the equipment from the telephone network until  
the problem has been corrected or until you are sure that the equipment is not malfunc-  
tioning. The user must use the accessories and cables supplied by the manufacturer to  
get optimum performance from the product.  
UG-BEFDSR41W-071802NC-BW  
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Instant BroadbandSeries  
ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
Table of Contents  
The Linksys ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
Features  
Package Contents  
Minimum Requirements  
An Introduction to LANs and WANs  
IP Addresses  
Network Setup Overview  
Filtering  
47  
49  
51  
53  
55  
56  
57  
Chapter 1: Introduction  
1
Forwarding  
Dynamic Routing  
Static Routing  
DMZ Host  
Firewall  
1
1
2
2
2
3
5
Link Test  
Appendix A: Troubleshooting  
Common Problems and Solutions  
Frequently Asked Questions  
58  
58  
60  
Chapter 2: Getting to Know the ADSL Gateway  
with Modem / Router / 4-Port Switch / Wireless-Ready  
The Gateways Back Panel Ports  
6
6
The Gateways Front Panel LEDs  
7
Appendix B: Configuring Wireless Security  
Configuring Wireless Security in Windows XP  
64  
68  
Chapter 3: Connecting the Gateway  
9
Appendix C: Installing the TCP/IP Protocol  
73  
Chapter 4: Configuring the PCs  
Overview  
Windows 95, Windows 98, Windows Millennium  
Windows 2000  
12  
12  
13  
15  
17  
Appendix D: Finding the MAC Address and IP  
Address for Your Ethernet Adapter  
75  
Windows XP  
Appendix E: Specifications  
Environmental Specifications  
79  
80  
Chapter 5: Configuring the Gateway  
19  
Appendix F: Warranty Information  
Appendix G: Contact Information  
81  
82  
Chapter 6: Using the Gateway’s Web-based  
Utility  
25  
25  
26  
34  
36  
38  
40  
41  
42  
44  
46  
Quick and Easy Gateway Administration  
Setup  
Password  
Status  
DHCP  
Log  
UPnP  
Help  
Wireless  
Advanced  
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Instant BroadbandSeries  
ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
Chapter 1: Introduction  
with Modem / Router / 4-Port Switch / Wireless-Ready  
The Linksys ADSL Gateway  
Thank you for choosing the Instant Broadband™ ADSL Gateway with Modem / Router / 4-  
Port Switch / Wireless-Ready. This Gateway allows you to set up a network with your PCs  
and share your Internet connection.  
The Gateway does this by connecting to your ADSL line, and using the Gateways Ethernet  
ports to connect your PCs; its like each PC is connected directly to the Internet. This way, you  
have an Ethernet network where you have several PCs utilizing one Internet connection simul-  
taneously. Plus, if you add a Linksys wireless PC Card, it can be used as an Access Point and  
the Gateway can bridge your Ethernet network with your wireless PCs.  
The PCs that you connect to the Gateways four LAN ports, when properly configured, cre-  
ate a LAN, or Local Area Network. They are connected with an Ethernet cable plugged into  
your computers Ethernet adapter at one end and into one of the Gateway's LAN ports (num-  
bered from one to four) at the other end. The term “Ethernet” is used to refer to your network  
accessories, such as cables and adapters, because Ethernet refers to the type of network that  
you are setting up. Ethernet refers to the accessories that transfer computer data from 10Mbps  
to 100Mbps (speeds used by network devices.)  
The Gateway allows you to share yourADSL connection using a built-inADSL modem, and  
can plug directly into yourADSL-enabled wall jack (DSL service line). The PCs that are con-  
nected to the Gateway share this connection.  
Features  
Download Speeds of up to 8Mbps  
Upload Speeds of up to 800kbps  
Prevents DoS (Denial of Service) Attacks  
E-mail and Web-based Logging of Security Events  
MAC Address Filtering, Port Forwarding, DMZ Support  
Configurable through Your Networked PCs Web Browser  
Supports VPN Pass-Through for IPSec, PPTP, and L2TP Protocols  
Internal 4-Port Switch Dramatically Speeds Up Your Network  
DHCP Server Capability to Assign IP Addresses Automatically  
Wireless Capabilities Available with Use of Optional WPC11 (sold separately)  
Supports a High Data Rate of up to 11Mbps for up to 28 Simultaneous  
Wireless Connections  
Capable of 64 and 128-Bit WEP Encryption  
Compliant with ANSI T1.413i2, ITU-T G.dmt (G.992.1), and ITU G.lite  
(G.992.2) Standards  
Supports RFC 1483, RFC 2364 PPPoA, RFC 2516 PPPoE Protocols  
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Think of the Gateway as a network device with two sides: the first side is made  
up of your private Local Area Network (LAN) of PCs. The other, public side is  
the Internet, or the Wide Area Network (WAN), outside of your home or office.  
The Gateways firewall (NAT) protects your network of PCs so users on the  
public, Internet side cannot “see” your PCs. This is how your LAN, or network,  
remains private. The Gateway protects your network by inspecting the first  
packet coming in through the WAN port before delivery to the final destination  
on the LAN port. The Gateway inspects Internet port services like the web serv-  
er, ftp server, or other Internet applications, and, if allowed, it will forward the  
packet to the appropriate PC on the LAN side.  
IP Addresses  
What’s an IP Address?  
IP stands for Internet Protocol. Every device on an IP-based network, including  
PCs, print servers, and routers, requires an IP address to identify its “location,”  
or address, on the network. This applies to both the WAN and LAN connections.  
There are two ways of assigning an IP address to your network devices.  
Figure 1-1  
Package Contents  
Static IP Addresses  
One ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
One Power Adapter  
One RJ-11 Phone Cable  
One User Guide  
One Fast Start and Registration Card (not shown)  
A static IP address is a fixed IP address that you assign manually to a PC or  
other device on the network. Since a static IP address remains valid until you  
disable it, static IP addressing ensures that the device assigned it will always  
have that same IP address until you change it. Static IP addresses are com-  
monly used with network devices such as server PCs or print servers.  
Minimum Requirements  
When using the Gateway to share your ADSL Internet connection, contact your  
ISP to find out if they have assigned a static IP address to your account. If so,  
you will need that static IP address when configuring the Gateway. You can get  
the information from your ISP.  
Network Adapter with Ethernet (UTP CAT 5) Cabling and TCP/IP Protocol  
Installed per PC  
Internet Explorer 4.0 or Netscape Navigator 4.7 or Higher for Web-based  
Configuration  
ADSL Connection and Activated Account  
Optional Wireless Network PC Card Model WPC11 for Wireless Connection  
(sold separately)  
Note: Since the Gateway is a device that connects two networks, it  
needs two IP addresses—one for the LAN side, and one for the WAN  
side. In this User Guide, you’ll see references to the “WAN IP  
address” and the “LAN IP address.”  
An Introduction to LANs and WANs  
Since the Gateway has firewall security (NAT), the only IP address that  
can be seen from the Internet for your network is the Gateways WAN  
IP address.  
Simply put, a router is a network device that connects two networks together.  
In this instance, the Gateway connects your Local Area Network (LAN), or  
the group of PCs in your home or office, to the Wide Area Network (WAN),  
that is, the Internet. The Gateway processes and regulates the data that travels  
between these two networks.  
However, even this WAN IP address for the Gateway can be blocked,  
so that the Gateway and network seem invisible to the Internet—see  
the IP Filtering section in “Chapter 6: Using the Gateways Web-based  
Utility.”  
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Dynamic IP Addresses  
Network Setup Overview  
A dynamic IP address is automatically assigned to a device on the network,  
such as PCs and print servers. These IP addresses are called “dynamic”  
because they are only temporarily assigned to the PC or device. After a certain  
time period, they expire and may change. If a PC logs onto the network (or the  
Internet) and its dynamic IP address has expired, the DHCP server will assign  
it a new dynamic IP address.  
This user guide covers the basic steps for setting up a network with a Gateway.  
After going through the “Getting to Know the Gateway” chapter, most users  
will only need to use the following chapters:  
Chapter 3: Connecting the Gateway  
This chapter instructs you on how to connect the ADSL line to the Gateway  
and connect the PC(s) to the Gateway.  
For ADSL users, many ISPs may require you to log on with a user name and  
password to gain access to the Internet. This is a dedicated, high-speed con-  
nection type called Point to Point Protocol over Ethernet (PPPoE). PPPoE is  
similar to a dial-up connection, but PPPoE does not dial a phone number when  
establishing a connection. PPPoE also will provide the Gateway with a dynam-  
ic IP address to establish a connection to the Internet. Point to Point Protocol  
over ATM, or PPPoA, is a similar login method also used for some ADSL con-  
nections.  
Chapter 4: Configuring the PCs  
This chapter instructs you on how to configure your PC(s) for a DHCP con-  
nection, if the network settings are not already set to DHCP.  
Chapter 5: Configuring the Gateway  
This chapter explains how to configure the Gateway using your web browser  
and the Gateways web-based utility. You will configure the Gateway using  
the settings provided by your ISP.  
DHCP (Dynamic Host Configuration Protocol) Servers  
DHCP frees you from having to assign IP addresses manually every time a new  
user is added to your network. PCs and other network devices using dynamic  
IP addressing are assigned a new IP address by a DHCP server. The PC or net-  
work device obtaining an IP address is called the DHCP client. By default, the  
Gateways WAN setting is DHCP client.  
When you’re finished with the basic steps, then you are ready to connect to the  
Internet. After the PC(s) can access the Internet through the Gateway, you can  
alter the Gateways settings further; for example, you can adjust security fea-  
tures and other settings to enable online gaming, run Internet servers, config-  
ure a wireless LAN (WPC11 required) and more!  
A DHCP server can either be a designated PC on the network or another net-  
work device, such as the Gateway. By default, a DHCP server (LAN side) is  
enabled on the Gateway. If you already have a DHCP server running on your  
network, you must disable one of the two DHCP servers. If you run more than  
one DHCP server on your network, you will experience network errors, such as  
conflicting IP addresses. To disable DHCP on the Gateway, see the DHCP sec-  
tion in “Chapter 6: Using the Gateways Web-based Utility.”  
Notebook with  
Ethernet Adapter  
WAN  
LAN  
Note: Even if you assign a static IP address to a PC, other PCs can  
still use DHCPs dynamic IP addressing, as long as the static IP  
address is not within the DHCP range of the LAN IP Address.  
PC with  
Ethernet Adapter  
ADSL Gateway  
with Modem / Router / 4-Port  
Switch / Wireless-Ready  
If the dynamic IP addressing fails to provide a dynamic IP address,  
refer to “Appendix A: Troubleshooting.”  
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The Gateway’s Front Panel LEDs  
Chapter 2: Getting to Know the  
ADSL Gateway with Modem / Router / 4-  
Port Switch / Wireless-Ready  
The Gateway’s Back Panel Ports  
The Gateways ports, where network cables are connected, are located on the  
back panel of the Gateway.  
Figure 2-2  
Power  
Diag  
Green. The Power LED lights up when the Gateway is pow-  
ered on.  
Green. The Diag LED flashes when the Gateway is booting  
up. If this flashes or stays solid after the bootup phase, the  
Gateway may be malfunctioning. See “Appendix A:  
Troubleshooting” if you encounter this problem.  
Link/Act  
Full/Col  
100  
Green. The Link/Act LED serves two purposes. If the LED  
is continuously lit, the Gateway is successfully connected to  
a device through the corresponding port (1, 2, 3 or 4). If the  
LED is flickering, the Gateway is actively sending or receiv-  
ing data over that port.  
Figure 2-1  
ADSL  
The ADSL port is where you will connect your  
ADSL line.  
Ports 1-4  
These four LAN (Local Area Network) ports con-  
nect to network devices, such as PCs, print servers,  
and remote hard drives.  
Green. The Full/Col LED also serves two purposes. If this  
LED is lit up continuously, the connection made through the  
corresponding port is running in Full Duplex mode. If the  
LED flickers, the connection is experiencing collisions.  
Infrequent collisions are normal.  
Power  
The Power port is where you will connect the  
power adapter.  
On/Off Switch  
PC Card Slot  
This switch is used for turning the Gateway on and  
off.  
Green. The 100 LED lights up when a successful 100Mbps  
connection is made through the corresponding port.  
This is where you can connect the optional wireless  
PC card (not included) for wireless features.  
If this LED does not light up, then your connection speed is  
10 Mbps.  
WLAN Link  
WLAN Act  
Green. This LED is solidly lit when a wireless PC Card is  
inserted and functioning in the Gateway.  
Green. This LED flashes when there is wireless activity.  
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ADSL Session Green. This LED is solidly lit when a PPPoE session is estab-  
Chapter 3: Connecting the  
lished.  
Gateway  
ADSL Link  
ADSL Act  
Green. This LED is off when an ADSL line is not detected.  
It flashes when the Gateway is attempting to make an ADSL  
connection. The LED is solidly lit when an ADSL connection  
has been successfully established.  
Connecting Your Hardware and Booting Up  
You will connect the Gateway to your ADSL line and to the computers in your  
home or business.  
Green. This LED flashes when there is activity across the  
ADSL connection.  
First, make sure that all the devices that you’ll be working with are powered  
down, including your PCs and the Gateway.  
1. Connect one end of the provided phone cable to the ADSL (RJ-11 phone)  
port that is on the back of the Gateway.  
Proceed to “Chapter 3: Connecting the Gateway.”  
The Reset Button  
Briefly pressing the Reset Button or rebooting the Gateway will refresh the  
Gateways connections. If the Gateway locks up, simply press the Reset Button  
or power it down for three to five seconds. Leaving the power off for too long  
could result in the loss of network connections.  
Pressing the Reset Button and holding it in for a few seconds will clear all of  
the Gateways data and restore the factory defaults. This should be done only  
if you are experiencing heavy routing problems, and only after you have  
exhausted all of the other troubleshooting options. By resetting the Gateway,  
you run the risk of creating conflicts between your PCs’ actual IP Addresses  
and what the Gateway thinks their IP Addresses should be. You may be forced  
to reboot each network PC.  
Figure 3-1  
2. Connect the other end of the phone cable to the wall jack with ADSL service.  
Figure 3-2  
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3. Connect one end of an Ethernet cable to your PCs Ethernet adapter. Connect  
the other end of the cable to one of the LAN ports on the back of the Gateway.  
Repeat this process for every PC that you want to connect to the Gateway.  
4. Connect the power adapter to the Gateway. Plug the power adapter into the  
electrical outlet.  
Note: If your PCs Ethernet adapter is not set up, please refer to the Ethernet  
adapters user guide for more information.  
Figure 3-5  
Figure 3-3  
Figure 3-6  
5. Turn on the Gateway. Then, turn on the first PC that you want to use to con-  
figure the Gateway.  
Figure 3-4  
Go to “Chapter 4: Configuring the PCs.”  
If you are connecting more than four PCs to the Gateway, you will also need  
to connect a hub or switch to the Gateway.  
Note: A small device called a microfilter (not included) may be nec-  
essary between each phone and wall jack to prevent interference.  
Contact your ISP if you have any questions.  
Note: If you have a Linksys wireless PC Card (WPC11), be sure to  
fully insert it into the PC Card slot on the back of the Gateway before  
turning on the power. You must have this card inserted in order to  
use the Gateway's wireless features.  
Note: The ADSL Gateway (with optional WPC11) is configured by  
default to work out of the box with all Linksys Wireless Adapters. If  
you have changed the defaults on your Linksys Wireless Adapters, or  
are using other wireless adapters, you must temporarily change your  
wireless adapter settings to: (SSID = linksys) in order to initially  
access the Gateway wirelessly. After you have accessed the Gateway  
with the default settings, you can change the Gateway settings to coin-  
cide with your Network settings and reset your adapters.  
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Windows 95, Windows 98, Windows Millennium  
Chapter 4: Configuring the PCs  
1. Go to the Network screen by clicking the Start button. Click Settings and  
Overview  
then Control Panel. From there, double-click the Network icon.  
The instructions in this chapter will help you configure each of your comput-  
ers to be able to communicate with the Gateway.  
2. On the Configuration tab, select the TCP/IP line for the applicable  
Ethernet adapter. Do not choose a TCP/IP entry whose name mentions  
DUN, PPPoE, VPN, or AOL. If the word TCP/IP appears by itself, select  
that line. (If there is no TCP/IP line listed, refer to “Appendix C: Installing  
the TCP/IP Protocol” or your Ethernet adapters user guide to install  
TCP/IP now.) Click the Properties button.  
To do this, you need to configure your PCs network settings to obtain an IP (or  
TCP/IP) address automatically (called DHCP). Computers use IP addresses to  
communicate with each other across a network or the Internet.  
You will need to know which operating system your computer is running, such  
as Windows 95, 98, Millennium, 2000, or XP. One way to find out which oper-  
ating system you have is by clicking the Start button and then going to the  
Settings option. Then click Control Panel, and then double-click the System  
icon.  
You may need to do this for each computer you are connecting to the Gateway.  
The next few pages tell you, step by step, how to configure your network set-  
tings based on the type of Windows operating system you are using.  
If your operating system is not referenced here, refer to your operating system  
documentation.  
Once you've configured your computers, continue to “Chapter 5: Configuring  
the Gateway.”  
Figure 4-1  
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3. Click the IP Address tab. Select Obtain an IP address automatically.  
Windows 2000  
1. Go to the Network screen by clicking the Start button. Click Settings and  
then Control Panel. From there, double-click the Network and Dial-up  
Connections icon.  
2. Select the Local Area Connection icon for the applicable Ethernet adapter  
(usually it is the first Local Area Connection listed). Do not choose a  
TCP/IP entry whose name mentions DUN, PPPoE, VPN, or AOL. Double-  
click the Local Area Connection.  
Figure 4-2  
4. Now click the Gateway tab to ensure that the Installed Gateway field is left  
blank. Click the OK button.  
5. Click the OK button again. Windows may ask you for the original  
Windows installation disk or additional files. Supply them by pointing to  
the  
correct  
file  
location,  
e.g.,  
D:\win98,  
D:\win9x,  
c:\windows\options\cabs, etc. (if “D” is the letter of your CD-ROM drive).  
6. Windows may ask you to restart your PC. Click the Yes button. If Windows  
Figure 4-3  
does not ask you to restart, restart your computer anyway.  
3. The Local Area Connection Status screen will appear. Click the Properties  
button.  
Go to “Chapter 5: Configuring the Gateway.”  
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4. Select Internet Protocol (TCP/IP), and click the Properties button.  
Windows XP  
The following instructions assume you are running Windows XP with the  
default interface. If you are using the Classic interface (where the icons and  
menus look like previous Windows versions), please follow the instructions for  
Windows 2000.  
1. Click to the Network screen by clicking the Start button and then Control  
Panel. From there, click the Network and Internet Connections icon and  
then the Network Connections icon.  
2. Select the Local Area Connection icon for the applicable Ethernet adapter  
(usually it is the first Local Area Connection listed). Double-click the  
Local Area Connection. Click the Properties button.  
Figure 4-4  
5. Select Obtain an IP address automatically. Once the new window  
appears, click the OK button. Click the OK button again to complete the  
PC configuration.  
Figure 4-6  
Figure 4-5  
3. The Local Area Connection Status screen will appear. Click the Properties  
6. Restart your computer.  
button.  
Go to “Chapter 5: Configuring the Gateway.”  
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4. Select Internet Protocol (TCP/IP), and click the Properties button.  
Chapter 5: Configuring the  
Gateway  
Configuring the Gateway  
In this chapter, you will configure the Linksys ADSL Gateway to be able to  
gain access to the Internet through your Internet Service Provider (ISP). You  
will need the setup information provided by your ADSL ISP:  
Your ADSL line VPI and VCI  
Your ADSL encapsulation type and multiplexing  
For PPPoA or PPPoE users, you also need these values from your ISP:  
Your username and password  
Figure 4-7  
For RFC 1483 users, you may need these values from your ISP:  
5. Select Obtain an IP address automatically. Once the new window  
appears, click the OK button. Click the OK button again (or the Close but-  
ton if any settings were changed) to complete the PC configuration.  
Your ADSL fixed Internet IP address  
Your Subnet Mask  
Your Default Gateway  
Your primary DNS IP address  
The above information should have been provided by your ADSL ISP. If not, contact  
your ISP and they will be able to supply you with the correct settings. The instructions  
from your ISP tell you how to set up your PC for Internet access. Because you  
are now using the Gateway to share Internet access among several computers,  
you will use the setup information to configure the Gateway instead of your  
PC. You only need to configure the Gateway once using the first computer you  
set up.  
Figure 4-8  
6. Restart your computer.  
Go to “Chapter 5: Configuring the Gateway.”  
Figure 5-1  
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1. Open your web browser. (It is all right if you get an error message at this  
point. Continue following these directions.) Enter http://192.168.1.1 in the  
web browsers Address field. Press the Enter key.  
4. The Gateway supports five modes of Encapsulation: RFC 1483 Bridged,  
RFC 1483 Routed, RFC2364 PPPoA, RFC2516 PPPoE, and Bridged Mode  
Only. These modes are listed in the drop-down menu for the Encapsulation  
setting. Each Setup screen and available features will differ depending on  
what kind of connection mode you select. The instructions for RFC 1483  
Bridged, RFC2516 PPPoE, and RFC2364 PPPoA are listed below; if the  
instructions for your connection mode is not explained here, then proceed  
to “Chapter 6: Using the Gateways Web Based Utility.”  
Figure 5-2  
2. An Enter Network Password window, shown in Figure 5-3, will appear  
(Windows XP users will see a Connect to 192.168.1.1 window, shown in  
Figure 5-4). Enter admin in lowercase letters in the User Name field, and  
enter admin in lowercase letters in the Password field (admin is the default  
user name and password). Then, click the OK button.  
A. RFC 1483 Bridged  
This mode supports two types of WAN IP Addresses: Dynamic IP Address or  
Static IP Address. Follow the directions for the type of WAN IP Address you  
need to use.  
Dynamic IP Address  
If your ISP says that you are connecting through a dynamic IP address, fol-  
low these steps:  
1. Select Dynamic IP Address as the WAN IP Address.  
2. Click the Apply and Continue buttons to save the settings.  
Figure 5-3  
Figure 5-4  
3. The Gateway configuration screen will appear with the Setup tab selected.  
Based on the setup instructions from your ISP, you may need to provide the  
following information.  
Host Name and Domain Name These fields allow you to provide a host  
name and domain name for the Gateway. These fields are usually left blank.  
If requested by your ISP, complete these two fields.  
Virtual Circuit ID (VPI and VCI) These fields consist of two items: VPI  
(Virtual Path Identifier) and VCI (Virtual Channel Identifier). Your ISP  
will provide the correct settings for this field.  
Figure 5-5  
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Static IP Address  
B. RFC 2516 PPPoE or RFC 2364 PPPoA  
If your ISP says that you are connecting through a static or fixed IP address  
from your ISP, follow these steps:  
If your ISP says that you are connecting through PPPoE or PPPoA, or if you  
normally enter a user name and password to access the Internet, follow these  
steps:  
1. Select Static IP Address as the WAN IP Address.  
2. Enter the IP Address.  
1. Select PPPoE or PPPoA as appropriate for the WAN Connection  
Type.  
3. Enter the Default Gateway Address.  
2. If you selected PPPoE, enter the Service Name (if required).  
3. Enter the User Name.  
4. Enter the DNS in the 1 and/or 2 fields. You need to enter at least one  
DNS address.  
4. Enter the Password.  
5. Click the Apply and Continue buttons to save the settings.  
5. Click the Apply and Continue buttons to save the settings.  
Figure 5-6  
Figure 5-7  
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5. If you haven’t already done so, click the Apply button and then the  
Continue button to save your Setup settings. Close the web browser.  
Chapter 6: Using the Gateway’ s  
6. Congratulations! You’ve suc-  
cessfully configured the  
Web-based Utility  
Gateway. Test the setup by  
opening your web browser  
Figure 5-8  
Quick and Easy Gateway Administration  
from any computer and entering www.linksys.com/registration.  
For your convenience, an administrative utility has been programmed into the  
Gateway where all Gateway-based administrative tasks are performed. This  
chapter will explain all of the functions in this utility. The web utility can be  
accessed by an PC on the network by typing the Gateways default IP address  
192.168.1.1 in the PCs web browser address window, as shown in Figure 6-1.  
Press the Enter key.  
If you need advanced setting information, please refer to “Chapter 6: Using  
the Gateways Web-Based Utility” or the Linksys support website at  
support.linksys.com.  
If you are unable to reach our website, you may want to review what you  
did in this section or refer to “Appendix A: Troubleshooting.”  
Go to “Chapter 6: Using the Gateways Web-based Utility” for more  
details and advanced settings information.  
Figure 6-1  
An Enter Network Password window, shown in Figure 6-2, will appear  
(Windows XP users will see a Connect to 192.168.1.1 window, shown in Figure  
6-3). Enter admin in lowercase letters in the User Name field, and enter admin  
in lowercase letters in the Password field (admin is the default user name and  
password). Then, click the OK button.  
Figure 6-2  
Figure 6-3  
In the following sections, you’ll find brief descriptions of each web page in the  
utility and each pages key functions. More detailed explanations and instruc-  
tions can be found by clicking each pages Help button or on Linksyss website  
at www.linksys.com To apply any of the settings you change on a page, click  
the Apply button, and then click the Continue button. To cancel any values  
you’ve entered on any page, click the Cancel button.  
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Setup  
The Setup screen is the first screen you see when you access the web-based  
utility. If you have already installed and set up the Gateway, you have already  
seen this screen and properly configured each of the values.  
• Host Name & Domain Name These fields allow you to supply a host and  
domain name for the Gateway. Some ISPs require these names as identifi-  
cation. You may have to check with your ISP to see if your broadband  
Internet service has been configured with a host and domain name. In most  
cases, leaving these fields blank will work.  
• Firmware Version This entry shows the version and date of the firmware  
you are using. Future versions of the Gateways firmware will be posted and  
available for download on the Linksys website at www.linksys.com.  
• Current Time The Gateway will try to reach an Internet timeserver and dis-  
play the current time in this location. If a timesaver cannot be reached, this  
will show the time elapsed since the Gateway was powered on.  
Figure 6-4  
• Time Zone Set your local time zone in this field. If your region participates  
in Daylight Savings Time (DST), check the box next to Daylight Savings  
Time.  
Note: The screen you see may vary depending on what kind of con-  
nection mode you select.  
• LAN IP Address and Subnet Mask The values for the Gateways IP  
Address and Subnet Mask as seen on the internal LAN are shown here. The  
default values are 192.168.1.1 for the Device IP Address and 255.255.255.0  
for the Subnet Mask.  
• Encapsulation The Gateway supports five encapsulation modes: RFC  
1483 Bridged, RFC 1483 Routed, RFC 2364 PPPoA, RFC2516 PPPoE,  
and Bridged Mode Only. These modes can be selected from the drop-down  
menu next to the Encapsulation setting. Each Setup screen and available  
features will differ depending on what kind of connection mode you select.  
Each mode is described on the following pages.  
• Virtual Circuit ID These fields consist of two items: VPI (Virtual Path  
Identifier) and VCI (Virtual Channel Identifier). Your ISP will provide the  
correct settings for these fields.  
• Multiplexing The Gateway supports both VC and LLC multiplexing. Your  
ISP will provide the correct selection for this setting.  
VPI Enter the number provided by your ISP. The number will be in the  
range of 0 to 255.  
Note: After setup, you can test and see if the settings are correct by  
successfully connecting to the Internet.  
VCI Enter the number provided by your ISP. The number will be in the  
range of 0 to 65535.  
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Static IP Address Choose this option if your ISP provided you with the fol-  
lowing information: IP Address, Default Gateway Address, and DNS Server  
Address(es).  
RFC 1483 Bridged  
This mode supports two additional mode selections in the drop-down menu  
for the WAN IP Address setting, Dynamic IP Address and Static IP  
Address. The Setup screen and features displayed will differ depending on  
which mode you select.  
1.  
2.  
3.  
Enter the IP address provided by the ISP in the Specify an IP  
Address field.  
Enter the Default Gateway Address in the Default Gateway Address  
field.  
Dynamic IP Address Choose this option if your ISP assigns IP addresses  
via DHCP.  
Enter the DNS Server Address(es) in the DNS 1 and DNS 2 fields.  
Figure 6-5  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
Figure 6-6  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
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RFC 1483 Routed  
RFC 2364 PPPoA  
Choose this option if your ISP told you to use this mode of encapsulation.  
Use the IP address and DNS Server Address(es) provided by your ISP.  
Choose this option if your ISP told you to use this mode of encapsulation.  
Use the User Name and Password provided by your ISP.  
1.  
2.  
Enter the IP address provided by the ISP in the Specify an IP  
Address field.  
1. Enter the User Name in the Specify an IP Address field.  
2. Enter the Password in the Password field.  
Enter the DNS Server Address(es) in the DNS 1 and DNS 2 fields.  
3. Choose either Connect on Demand or Keep Alive to determine how  
the Gateway will maintain your Internet connection during any period  
of inactivity. If you have been disconnected due to inactivity, Connect  
on Demand enables the Gateway to automatically re-establish your  
connection as soon as you attempt to access the Internet again. You can  
configure the Gateway to cut your connection with your ISP after a  
specific period of time (Max Idle Time). The Keep Alive option keeps  
your Internet Access connected indefinitely, even when it sits idle.  
Figure 6-7  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
Figure 6-8  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
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RFC 2516 PPPoE  
Bridged Mode Only  
Choose this option if your ISP told you to use this mode of encapsulation.  
Use the User Name, Password, and Service Name (if applicable) provided by  
your ISP.  
Choose this option if your ISP told you to use this mode of encapsulation.  
This mode is used to configure the Gateway as an RFC1483 bridge, when the  
Gateways routing and NAT capabilities need to be disabled.  
Figure 6-9  
1. Enter the Service Name (if provided) in the field.  
Figure 6-10  
2. Enter the User Name in the Specify an IP Address field.  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
3. Enter the Password in the Password field.  
4. Choose either Connect on Demand or Keep Alive to determine how  
the Gateway will maintain your Internet connection during any period  
of inactivity. If you have been disconnected due to inactivity, Connect  
on Demand enables the Gateway to automatically re-establish your  
connection as soon as you attempt to access the Internet again. You can  
configure the Gateway to cut your connection with your ISP after a  
specified period of time (Max Idle Time). The Keep Alive option keeps  
your Internet access connected indefinitely, even when it sits idle.  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
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• SNMP Trap Community Enter the password sent with each trap to the  
SNMP manager.  
Password  
On the Password screen, you can change the Gateways password, configure  
SNMP settings, and restore the Gateways factory default settings.  
• SNMP Trap Destination Enter the IP address of the station that receives  
the SNMP traps sent by the Gateway.  
• Restore Factory Defaults If you select the Restore Factory Defaults option  
and click the Apply button, you will clear all of the Gateways settings.  
Do not restore the factory defaults unless you are having difficulties with  
the Gateway and have exhausted all other troubleshooting measures. Once  
the Gateway is reset, you will have to re-enter all of your configuration data.  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
Figure 6-11  
• Router Password It is strongly recommended that you set a password for  
the Gateway. The default password is admin. If you don’t change the pass-  
word, all users on your network will be able to access the Gateway using the  
default password admin. Re-enter the new password in the second field.  
• SNMP Get Community Set the read-only community string for SNMP. It  
is strongly recommended to change this field to a name that cannot be eas-  
ily guessed. The default string is public.  
• SNMP Set Community Set the read/write community string for SNMP. It  
is strongly recommended to change this field to a name that cannot be eas-  
ily guessed. The default string is private.  
• SNMP Trusted Host If you enter a trusted host address here, the Gateway  
will only respond to SNMP messages from this IP address. If you leave the  
field blank (which is the default), the Gateway will respond to all SNMP  
messages it receives, regardless of source.  
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• Downstream Speed This indicates the maximum speed at which the ADSL  
Gateway will receive data.  
Status  
This screen displays the current status of the Gateway; it reflects the data and  
selections you’ve entered using the Setup screen and provides an option for  
DHCP users.  
• Login This indicates the status of the PPPoA or PPPoE login (if applica-  
ble).  
Note: The information provided and buttons available may  
vary depending on the Gateways settings.  
• LAN These fields display the current MAC Address, LAN IP Address, and  
Subnet Mask of the Gateway, as seen by users on your local area network.  
The status of the DHCP Server is also displayed, if applicable.  
All of the information provided on this screen is read-only. To make changes,  
select the Setup tab.  
• WAN These fields display the WAN IP Address, WAN Subnet Mask, and  
WAN Default Gateway IP Address of the Gateway, as seen by external users  
on the Internet. The DNS (Domain Name System) IP Address field(s) show  
the IP address(es) of the DNS currently used by the Gateway. Multiple DNS  
IP settings are common. In most cases, the first available DNS entry is  
used.  
• Host Name This field shows the name of the Gateway.  
• Firmware Version This field shows the installed version and date of the  
firmware. Version dates are slightly more accurate than version numbers.  
• Link Status This indicates the status of the ADSL link. It tells you if the  
• DHCP Clients Table Click the DHCP Clients Table button to view the list  
ADSL Gateway is disconnected, attempting to connect, or connected.  
of PCs that were given IP addresses by the Gateway.  
DHCP  
• Upstream Speed This indicates the maximum speed at which the ADSL  
Gateway will transmit data.  
Figure 6-12  
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• Number of DHCP Users Enter the maximum number of PCs that you want  
the DHCP server to assign IP addresses to. This number cannot be greater  
than 253.  
DHCP  
The Gateway can be set up as a DHCP (Dynamic Host Configuration Protocol)  
server on your network. A DHCP server automatically assigns an IP address to  
each PC on your network for you. Unless you already have one, it is highly rec-  
ommended that you leave the Gateway enabled as a DHCP server.  
• DHCP Clients Table Click the DHCP Clients Table button to show the  
current DHCP Client data. You will see the MAC address, computer name,  
and IP address of all network clients using the DHCP server. (This data is  
stored in temporary memory and changes periodically.)  
If you choose to enable the DHCP server option, you must configure all of the  
PCs on your LAN to connect to a DHCP server, or to obtain their IP addresses  
automatically. See “Chapter 4: Configuring the PCs” for more information.  
To apply any of the settings you change on a page, click the Apply button, and  
then click the Continue button. To cancel any values you’ve entered on any  
page, click the Cancel button. For more information on this tab, you can click  
the Help button.  
If the Gateways DHCP server function is disabled, you have to carefully con-  
figure the IP address, Subnet Mask and DNS settings of every computer on  
your network. Do not assign the same IP address to more than one computer.  
Figure 6-13  
• DHCP Server DHCP is already enabled by factory default. If you already  
have a DHCP server on your network, set the Gateways DHCP option to  
Disable.  
• Starting IP Address Enter a value for the DHCP server to start with when  
issuing IP addresses.  
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UPnP  
Log  
The Log tab provides you with a log of all incoming and outgoing URLs or IP  
addresses for your Internet connection.  
Figure 6-15  
Figure 6-14  
Universal Plug and Play (UPnP) allows operating systems with UPnP support  
to automatically detect and configure the Gateway. UPnP allows UPnP-enabled  
applications, such as gaming and videoconferencing, to automatically manage  
the Gateway. See your operating systems documentation for instructions on  
how to enable this feature on your system.  
• Access Log To log incoming and outgoing traffic, select the Enable option  
next to Access Log. This function can be disabled by clicking the Disable  
radio button.  
To clear any values you’ve entered on any page, click Cancel and re-enter  
information. To apply any settings you’ve altered on any page, click the Apply  
button. Once all settings are correct, click Continue. For more information on  
this tab, you can click the Help button.  
• Send Log to The log can be forwarded to the IP address of a specific com-  
puter.  
• Incoming Access Log and Outgoing Access Log With logging enabled,  
you can choose to view temporary logs. Temporary logs can be accessed  
from the Log screen by clicking either the Incoming Access Log or  
Outgoing Access Log button. The Incoming Access Log is a log of all the  
Internet traffic entering the Gateway on the ADSL side. The Outgoing  
Access Log is a log of all traffic entering the Gateway on the LAN side.  
To clear any values you’ve entered on any page, click Cancel and re-enter  
information. To apply any settings you’ve altered on any page, click the Apply  
button. Once all settings are correct, click Continue. For more information on  
this tab, you can click the Help button.  
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Help  
Note: By upgrading the Gateways firmware, you may lose the Gateways  
configuration settings.  
To upgrade the Gateways firmware:  
1. Select the Help tab (see Figure 6-16).  
2. Click Upgrade Firmware to display a new window (see Figure 6-17).  
Figure 6-16  
Under the Help tab, you’ll find links to all of the Gateways internal support  
documentation, including the application that upgrades the Gateways  
firmware.  
Figure 6-17  
3. Click the Browse button to find the firmware upgrade file that you down-  
New firmware versions are posted at www.linksys.com and can be downloaded  
for free. If the Gateway can access the Internet already, theres no need to  
download a newer firmware version, unless that version has a new feature that  
you want to use. Loading new firmware onto the Gateway does not enhance  
the speed or the quality of your connection speed.  
loaded from the Linksys website and then extracted.  
4. Double-click the firmware file you downloaded and extracted. Click the  
Upgrade button, and follow the instructions there.  
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On the WEP Key Setting screen, you can make the following choices:  
Wireless  
Select 64- or 128-bit WEP encryption.  
Select Passphrase generation for easy setup of encryption fields.  
Configure the manual entry of WEP encryption keys.  
Configure the default transmit WEP key.  
Use the Wireless screen to configure the Gateway for your wireless network.  
Note: You must insert the Linksys wireless PC card in the PC card slot on  
Note: For further details on configuring wireless security using WEP,  
the back of the Gateway before you can use the wireless features.  
refer to “Appendix B: Configuring Wireless Security.”  
Firmware Version The wireless cards firmware version is listed in this  
field.  
RTS Threshold. This value should remain at its default setting of 2432.  
Should you encounter inconsistent data flow, only minor modifications are  
recommended.  
Fragmentation Threshold. This value should remain at its default setting  
of 2432. It specifies the maximum size a data packet will be before split-  
ting and creating a new packet. A smaller setting means smaller packets,  
which will create more packets for each transmission. Only minor modifi-  
cations of this value are recommended.  
To clear any values you’ve entered on any page, click Cancel and re-enter  
information. To apply any settings you’ve altered on any page, click the Apply  
button. Once all settings are correct, click Continue. For more information on  
this tab, you can click the Help button.  
Figure 6-18  
SSID The Service Set Identifier (SSID) is the unique name shared among  
all clients and access points in a wireless network. The SSID must be iden-  
tical for all clients and access points participating in the same network. The  
SSID is case-sensitive and must not exceed 30 characters.  
For security reasons, it is recommended that you change the SSID from the  
default “linksys”, and avoid common names (e.g. Company name).  
Channel This specifies the channel (frequency) used for the wireless net-  
work. Select the appropriate channel to correspond with your network set-  
tings, between 1 and 11 (in North America). All points in your wireless net-  
work must use the same channel in order to function correctly.  
WEP The WEP Encryption method is Disabled by default. To enable  
WEP, click the Mandatory radio button. Click the WEP Key Setting but-  
ton to configure the WEP key settings.  
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Advanced  
Filtering  
Important: This is an Advanced Function. No changes should be made  
The following instructions are for advanced users or users whose setup needs  
require special configuration. When you click the Advanced tab, you will be  
able to set up these features. There are seven additional tabs available.  
to this tab without a thorough understanding of network concepts.  
Filters block specific internal users from accessing the Internet and enable  
Virtual Private Network (VPN) sessions. You can set up filters by using IP  
addresses, network port numbers (or a range of ports), or MAC addresses.  
Filters - Block specific internal users from Internet access and enable Virtual  
Private Network (VPN) sessions.  
Forwarding - Sets up public services on your network.  
Dynamic Routing - Sets up the Gateway so it will automatically adjust to  
physical changes in the networks layout.  
Static Routing - Sets up static routes needed when network information must  
travel to a specific host or network.  
DMZ Host - Allows one local user to be exposed to the Internet for use of  
special-purpose services such as online gaming or videoconferencing.  
Firewall - Allows the Gateway to use Stateful Packet Inspection (SPI) to auto-  
matically detect and block Denial of Service (DoS) and hacking attempts.  
Link Test - Allows an advanced user or technician to perform advanced diag-  
nostics of the ADSL Gateway and perform connectivity tests.  
Figure 6-19  
Setting Up Filters  
• Filtered Private IP Range To set up a filter using IP addresses, enter the  
range of IP addresses you wish to filter in the IP address fields. Users who have  
filtered IP addresses will not be able to access the Internet at all. If you only  
want to filter one IP address instead of a range of IP addresses, enter the same  
value into both fields.  
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• Filtered Private Port Range To filter users by network port number, enter a  
network port number or a range of network ports. Select the protocol for each  
port number you want to filter, TCP or UDP. Enter the port numbers you want  
to filter in the port numbers fields. Users connected to the Gateway will no  
longer be able to access any port number listed there.  
Forwarding  
Important: This is an Advanced Function. No changes should be made  
to this tab without a thorough understanding of network concepts.  
Port Range Forwarding sets up public services on your network, such as web  
servers, ftp servers, e-mail servers, or other specialized Internet applications.  
(Specialized Internet applications are any applications that use Internet access  
to perform functions such as videoconferencing or online gaming. Some  
Internet applications may not require any forwarding.) When users send this  
type of request to your network via the Internet, the Gateway will forward those  
requests to the appropriate PC.  
Private MAC Filter  
Click the Edit MAC Filter Setting button to filter users by entering their  
physical addresses.  
In the MAC Filter Setting screen, enter the MAC addresses that you want to  
filter in the MAC address fields. The users with the filtered MAC addresses  
will not be able to access the Internet. Click the Apply button and the  
Continue button, before closing the window.  
You may use this feature to establish a web server or FTP server for Internet  
users to access. Be sure that you enter a valid IP address; you may need to  
establish a static IP address with your ISP in order to properly run an Internet  
server. For added security, Internet users will be able to communicate with the  
server, but they will not actually be connected. The packets will be forwarded  
through the Gateway instead. If you need to forward all ports to one PC, see the  
“DMZ” section.  
Block WAN Requests  
This feature is designed to protect users from Internet hackers and other  
attacks. When enabled, the Gateway will ignore both unknown TCP and  
ICMP packets from the WAN side. By enabling the Block WAN Request fea-  
ture, you can prevent your network from being “pinged,” or detected, by other  
Internet users. The Block WAN Request feature also reinforces your network  
security by hiding your network ports. Both functions of the Block WAN  
Request feature make it more difficult for outside users to work their way into  
your network.  
Remote Management  
This feature allows you to manage or configure the Gateway from a remote  
location, via the Internet. To enable management through the WAN connec-  
tion, click Enable, and use port 8080 on the remote PC you are using for  
remote management.  
Remote Upgrade  
This feature allows you to upgrade the Gateways firmware from a remote  
location. To enable Remote Upgrade, click Enable.  
Telnet Configuration  
This feature enables or disables telnet access to the Gateway.  
To clear any values you’ve entered on any page, click Cancel and re-enter  
information. To apply any settings you’ve altered on any page, click the Apply  
button. Once all settings are correct, click Continue. For more information on  
this tab, you can click the Help button.  
Figure 6-20  
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Dynamic Routing  
To add a server using Port Range Forwarding:  
Important: This is an Advanced Function. No changes should be made  
to this tab without a thorough understanding of network concepts.  
1. Enter the name of the application in the appropriate Customized  
Applications field. This field is a description field only.  
With Dynamic Routing you can enable the Gateway to automatically adjust to  
physical changes in the networks layout. The Gateway, using the RIP protocol,  
determines the network packets’ route based on the fewest number of hops  
between the source and the destination. The RIP protocol regularly broadcasts  
routing information to other routers on the network. Select the RIP directions  
and versions for the LAN and WAN sides.  
2. Next to the name of the application, enter the range of the external port(s)  
used by the server or Internet application in the Ext. Port column. Check  
with the Internet application software documentation for more information.  
3. Enter the IP address of the server that you want the Internet users to be  
able to access. To find the IP address, go to “Appendix D: Finding the  
MAC Address and IP Address for Your Ethernet Adapter.”  
4. Configure as many entries as needed—the Gateway supports up to 11  
ranges of ports. Click the Apply button and Continue button when you are  
done.  
To delete a server entry, enter 0 in the Ext. Port and IP Address fields.  
To clear any values you’ve entered on any page, click Cancel and re-enter  
information. To apply any settings you’ve altered on any page, click the Apply  
button. Once all settings are correct, click Continue. For more information on  
this tab, you can click the Help button.  
Figure 6-21  
RIP Direction  
Determines the direction that RIP routes will be updated.  
• None RIP is disabled.  
• Both The Gateway will incorporate received RIP information and send out  
updated RIP information.  
• In Only The Gateway will only incorporate received RIP information.  
• Out Only The Gateway will only send out RIP information.  
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RIP Version  
Select the version of IP you want to use.  
Static Routing  
Important: This is an Advanced Function. No changes should be made  
to this tab without a thorough understanding of network concepts.  
• RIP-1 Routing data will be sent in RIPv1 format.  
• RIP-2B Routing data will be sent in RIPv2 format using subnet broadcast-  
ing.  
• RIP-2M Routing data will be sent in RIPv2 format using multicasting.  
• N/A Routing data will not be sent.  
If the Gateway is connected to more than one network, it may be necessary to  
set up a static route between them. A static route is a pre-determined pathway  
that network information must travel to reach a specific host or network. You  
can use static routing to allow different IP domain users to access the Internet  
through the Gateway.  
Click the Show Routing Table button to open a chart displaying how data is  
routed through your LAN.  
The Gateway is also capable of dynamic routing (see the Dynamic Routing  
tab). It is usually better to use dynamic routing because it allows the Gateway  
to automatically adjust to physical changes in the networks layout.  
When finished making your changes on this tab, click the Apply button fol-  
lowed by the Continue button to save these changes, or click the Cancel but-  
ton to undo your changes. For further help on this tab, click the Help button.  
To set up static routing, you should add routing entries in the Gateways table,  
so the Gateway knows where to send all incoming packets.  
Figure 6-22  
To create a static route entry:  
1. Select a Static Route Entry from the drop-down list. The Gateway sup-  
ports up to eight static route entries.  
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2. Enter the following data to create a new static route.  
ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
DMZ Host  
Important: This is an Advanced Function. No changes should be made  
to this tab without a thorough understanding of network concepts.  
Destination LAN IP: The Destination LAN IP is the address of the remote  
network or host to which you want to assign a static route. Enter the IP  
address of the host for which you wish to create a static route here. For a  
standard Class C IP domain, the network address is the first three fields of  
the Destination LAN IP, while the last field should be 0.  
The DMZ Hosting function allows for a server attached to Port 4 of the  
Gateway to be fully accessible from the Internet. The Gateway supports an  
Advanced form of DMZ, allowing the system attached to Port 4 to be on a  
secure subnet, separate from the computers attached to the other 3 ports.  
Subnet Mask: The Subnet Mask (also known as the Network Mask) iden-  
tifies which portion of an IP address is the network portion, and which por-  
tion is the host portion. For a full Class C Subnet, the Subnet Mask is  
255.255.255.0.  
Port 4 Status Selecting DMZ  
enables the advanced DMZ  
function for the switched Port  
4. Selecting LAN disables the  
advanced DMZ function, and  
Port 4 acts as a normal  
switched port.  
Gateway IP: This IP address should be the IP address of the gateway  
device that allows for contact between the Gateway and the remote network  
or host.  
Hop Count: This determines the maximum number of steps between net-  
work nodes that data packets will travel. A node is any device on the net-  
work, such as PCs, print servers, routers, etc.  
DMZ IP Address Enter the  
IP Address that is assigned to  
the Gateways Port 4. Enter the  
Figure 6-23  
Subnet Mask associated with the DMZ network.  
From the Static Routing tab, click the Show Routing Table button to view the  
current static routing configuration.  
Routing This setting is only applicable to the DMZ network.  
To delete a Static Routing entry, select an entry, and click the Delete This  
Entry button.  
RIP Direction Determines the direction that RIP routes will be updated.  
• None RIP is disabled.  
• Both The Gateway will incorporate received RIP information and send out  
updated RIP information.  
• In Only The Gateway will only incorporate received RIP information.  
• Out Only The Gateway will only send out RIP information.  
When finished making your changes on this tab, click the Apply button fol-  
lowed by the Continue button to save these changes, or click the Cancel but-  
ton to undo your changes. For further help on this tab, click the Help button.  
RIP Version Select the version of IP you want to use.  
• RIP-1 Routing data will be sent in RIPv1 format.  
• RIP-2B Routing data will be sent in RIPv2 format using subnet broad-  
casting.  
• RIP-2M Routing data will be sent in RIPv2 format using multicasting.  
• N/A Routing data will not be sent.  
When finished making your changes on this tab, click the Apply button fol-  
lowed by the Continue button to save these changes, or click the Cancel but-  
ton to undo your changes. For further help on this tab, click the Help button.  
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Firewall  
Link Test  
Important: This is an Advanced Function. No changes should be made  
Important: This is an Advanced Function. No changes should be made  
to this tab without a thorough understanding of network concepts.  
to this tab without a thorough understanding of network concepts.  
The Link Test page allows an advanced user or technician to perform advanced  
diagnostics of the ADSL Gateway and perform connectivity tests.  
The Firewall screen allows you to enable the advanced firewall functions of the  
Gateway, so it can use Stateful Packet Inspection (SPI) to automatically detect  
and block Denial of Service (DoS) and hacker attacks. Also, you can enable the  
Gateway to maintain a security log, which can be viewed by clicking the Show  
Firewall Log Table button. The security log can also be e-mailed to a specific  
address, whose information should be entered in the Address Info setting.  
Figure 6-25  
The information provided by these tests is not discussed in this document.  
Figure 6-24  
• Firewall Service Enable or disable the advanced firewall functions.  
• Address Info You can specify that the security log be e-mailed to a specific  
address by completing the Mail Server, Mail Subject, Email Alert To, and  
Return Address fields.  
• Log Timer Depending on how often you want the security log e-mailed,  
complete the Log Schedule, Day for Sending Alerts, and/or Time for Sending  
Alerts fields.  
Click the Show Firewall Log Table button to view the security log.  
When finished making your changes on this tab, click the Apply button fol-  
lowed by the Continue button to save these changes, or click the Cancel but-  
ton to undo your changes. For further help on this tab, click the Help button.  
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Make sure that you do NOT have a microfilter plugged in between the  
Gateway and the wall jack. Verify that your ADSL account is active with  
your ISP.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
5. I cant browse through the Gateway.  
This section provides possible solutions to problems regarding the Gateways  
installation and operation. If your situation is described here, the problem  
should be solved by applying the corresponding solution. If you can’t find an  
answer here, check the Linksys website at www.linksys.com.  
• Check if both ends of the network cable and power adapter are properly  
connected. Check if the status LEDs on the front panel are functioning  
properly.  
• If using Windows 95, 98 or Millennium, check the TCP/IP setup on the  
client side. Run winipcfg by clicking on the Start button, selecting Run,  
and typing winipcfg in the Run field. Press Enter. The PC should have  
an IP address of 192.168.1.xxx (“xxx” is from 2 to 254.). The Subnet  
Mask is 255.255.255.0; the default gateway IP should be the Gateways IP  
Address, and check that the DNS is correct.  
1. The Gateway is not working.  
Verify that the Power cord and other network cables are plugged in.  
• Check the LAN and WAN LEDs on the Gateways front and verify that  
they are lit appropriately.  
• Check the settings on your PC.  
• Check the Gateways settings.  
• Check the same setup values in the Gateways Status page.  
6. When I enter a URL or IP address, I get a time out error.  
• Check to see if your other PCs work. If they do, verify that your PCs IP  
settings are correct (IP address, Subnet Mask, Default Gateway, and  
DNS)  
2. I cant connect to the Gateway.  
Verify that the Gateway is properly installed; LAN connections are OK,  
and it is powered ON.  
• Make sure that your PC and the Gateway are on the same network seg-  
ment. If you are not sure, initiate the DHCP function, and let the PC get  
the IP address automatically.  
• Make sure that your PC is using an IP address within the default range of  
192.168.1.2 to 192.168.1.254 and thus compatible with the Gateway  
default IP Address of 192.168.1.1  
• Also, the Subnet Mask should be set to 255.255.255.0 to match the  
Gateway. For the Gateway, you can check these settings by using Control  
Panel-Network to check the Properties for the TCP/IP protocol.  
• If the PCs are configured correctly, but still not working, check the  
Gateway. Make sure that it is connected and ON. Connect to it and check  
its settings. (If you cannot connect to it, check the LAN and power con-  
nections.)  
• If the Gateway is configured correctly, check your Internet connection to  
see that it is working correctly.  
• Manually configure the TCP/IP with a DNS address provided by your ISP.  
7. I cant obtain an IP address from my ADSL line.  
Verify that all of your cabling is properly connected and that all of the  
Gateways ADSL and Link LEDs are correctly illuminated.  
• Power down your Gateway for a few seconds. Turn it back on. After the  
Gateway goes through its self-test, check to see if you now have an IP  
address.  
Verify that the VPI/VCI and Encapsulation settings are correct in the  
Setup page of the Web-based Utility. Go to the Setup section of the Web-  
based Utility chapter for more information.  
• If you are configured for PPPoE or PPPoA, verify that the username and  
password are entered correctly in the Setup page of the Web-based Utility.  
Go to the Setup section of the Web-based Utility chapter for more infor-  
mation.  
3. The Diag LED stays lit when it shouldn’t.  
• The Diag LED lights up when the device is first powered up. Meantime,  
the system will boot up itself and check for proper operation. After fin-  
ishing the checking procedure, the LED turns off to show the system is  
working fine. If the LED remains lit after this time, the device is not  
working properly. Try to re-flash the firmware by assigning a static IP  
address to the computer, and then upgrade the firmware again. If that  
doesn’t help, contact your dealer for further inspection.  
4. The ADSL Link LED will not go solid.  
Verify that the RJ-11 cable is firmly plugged into the ADSL jack of the  
Gateway, with the other end plugged directly into the ADSL wall jack.  
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I set up an Unreal Tournament Server, but others on the LAN cannot join. What do  
I need to do? If you have a dedicated Unreal Tournament server running, you  
need to create a static IP for each of the LAN computers and forward ports  
7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You  
can also use a port forwarding range of 7777 ~ 27900. If you want to use the  
UT Server Admin, forward another port (8080 usually works well but is used  
for remote admin. You may have to disable this.), and then in the  
[UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to  
match the mapped port above) and ServerName to the IP assigned to the  
Gateway from your ISP.  
Frequently Asked Questions  
What is the maximum number of IP addresses that the Gateway will support? The  
Gateway will support up to 253 IP addresses.  
Is IPSec Pass-Through supported by the Gateway?Yes, it is a built-in feature that  
the Gateway automatically enables.  
Does the Gateway support IPX or AppleTalk? No. TCP/IP is the only protocol  
standard for the Internet and has become the global standard for communica-  
tions. IPX, a NetWare communications protocol used only to route messages  
from one node to another, and AppleTalk, a communications protocol used on  
Apple and Macintosh networks, can be used for LAN to LAN connections,  
but those protocols cannot connect from WAN to LAN.  
Can multiple gamers on the LAN get on one game server and play simultaneously  
with just one public IP address? It depends on which network game or what  
kind of game server you are using. For example, Unreal Tournament supports  
multi-login with one public IP.  
What is Network Address Translation and what is it used for? Network Address  
Translation (NAT) translates multiple IP addresses on the private LAN to one  
public address that is sent out to the Internet. This adds a level of security  
since the address of a PC connected to the private LAN is never transmitted  
on the Internet. Furthermore, NAT allows the Gateway to be used with low  
cost Internet accounts, when only one TCP/IP address is provided by the ISP.  
The user may have many private addresses behind this single address provid-  
ed by the ISP.  
How do I get Half-Life:Team Fortress to work with the Gateway? The default client  
port for Half-Life is 27005. The computers on your LAN need to have  
“+clientport 2700x” added to the HL shortcut command line; the x would be  
6, 7, 8, and on up. This lets multiple computers connect to the same server.  
One problem: Version 1.0.1.6 won’t let multiple computers with the same CD  
key connect at the same time, even if on the same LAN (not a problem with  
1.0.1.3). As far as hosting games, the HL server does not need to be in the  
DMZ. Just forward port 27015 to the local IP address of the server computer.  
Does the Gateway support any operating system other than Windows 95, Windows  
98, Windows 2000, Windows NT, or Windows XP? Yes, but Linksys does not, at  
this time, provide technical support for setup, configuration or troubleshoot-  
ing of any non-Windows operating systems.  
The web page hangs; downloads are corrupt, or nothing but junk characters are  
being displayed on the screen. What do I need to do? Force your Ethernet  
adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate”  
feature of your Ethernet adapter as a temporary measure. (Please look at the  
Network Control Panel in your Ethernet adapters Advanced Properties tab.)  
Make sure that your proxy setting is disabled in the browser. Check our web-  
site at www.linksys.com for more information.  
Does the Gateway support ICQ send file? Yes, with the following fix: click ICQ  
menu -> preference -> connections tab->, and check I am behind a fire-  
wall or proxy. Then set the firewall time-out to 80 seconds in the firewall set-  
ting. The Internet user can then send a file to a user behind the Gateway.  
If all else fails in the installation, what can I do? Reset the Gateway by holding  
down the reset button until the Diag LED fully turns on and off. Obtain and  
flash the latest firmware release that is readily available on the Linksys web-  
site, www.linksys.com.  
How do I get Napster to work with the Gateway? Napster is fully compatible with  
the Gateway, but you must make sure that, during installation, you select “no  
idea” when asked about your firewall selection. Set your proxy settings to  
“No Proxy Server” in your File>Preferences.  
How will I be notified of new Gateway firmware upgrades? All Linksys firmware  
upgrades are posted on the Linksys website at www.linksys.com, where they  
can be downloaded for free. The Gateways firmware can be upgraded with  
TFTP programs.  
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Will the Gateway function in a Macintosh environment? Yes, but the Gateways  
setup pages are accessible only through Internet Explorer v4.0 or Netscape  
Navigator v4.0 or higher for Macintosh. NOTE: Linksys does not provide  
technical support for Macintosh computers.  
What are the Gateway’s advanced features? The Gateways advanced features  
include Filters, Forwarding, Dynamic Routing, Static Routing, and DMZ  
host.  
Does Linksys provide syslog support? No, Linksys does not currently provide  
With which type of firewall is the Gateway equipped? The Gateway uses NAT and  
syslog support.  
TCP/IP port inspections. It also has SPI (Stateful Packet Inspection).  
How can I check whether I have static or dynamic IP Addresses? Consult your  
Does the Gateway do Stateful Packet Inspection? Yes. Enable the Firewall func-  
ISP to confirm the information.  
tion of the Gateway.  
How do I get mIRC to work with the Gateway? Set port forwarding to 113 for the  
computer on which you are using mIRC. If you are experiencing difficulty  
after setting the port forwarding, try changing the Direct Client-to-Client  
(DCC) settings to a range from 1024 to 1030 on the DCC option and  
Forwarding page of the Web-based Setup Utility.  
I am not able to access the Gateway’s web configuration screen. What can I do?  
You may have to remove the proxy settings on your Internet browser, e.g.,  
Netscape Navigator or Internet Explorer. Or remove the dial-up settings on  
your browser. Check with your browser documentation.  
What is DMZ? Demilitarized Zone (DMZ) allows one IP address (computer) to  
be exposed to the Internet. Some applications require multiple TCP/IP ports  
to be open. It is recommended that you set your computer with a static IP if  
you want to use DMZ.  
Can I guess my encapsulation type and VPI/VCI? These settings are dependent on  
your telephone company, ADSL ISP, service level, and when your line was  
installed. It is typically not something that can be guessed or found through  
trial and error. It is best to contact your ISP to find these settings.  
If DMZ is used, does the exposed user share the public IP with the Gateway? No.  
Will this product work on an SDSL, IDSL or ISDN line? No, those types of lines are  
not ADSL technologies. The BEFDSR41W will only work on ADSL lines  
that support the T1.413i2, G.992.1 (G.dmt), or G.992.2 (G.lite) standards.  
Does the Gateway pass PPTP packets or actively route PPTP sessions? The  
Gateway allows PPTP packets to pass through.  
If your questions are not addressed here, refer to the contact information  
on the last page of this manual, or online at support.linksys.com.  
Is the Gateway cross-platform compatible? Any platform that supports Ethernet  
and TCP/IP is compatible with the Gateway.  
Will the Gateway allow me to use my own public IPs and Domain, or do I have to  
use the IPs provided by the Gateway? The Gateway allows for customization  
of your public IPs and Domain.  
How many ports can be simultaneously forwarded? Theoretically, the Gateway  
can establish 520 sessions at the same time, but you can only forward 10  
ranges of ports.  
Does the Gateway replace a modem? Is there a DSL modem in the Gateway? Yes.  
The Gateway has an integrated ADSL modem, so this product will replace  
your current ADSL modem.  
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1. At the Wireless Screen, if you choose to enable WEP Encryption, select  
Appendix B: Configuring  
Mandatory under the WEP section.  
2. Press the WEP Key Setting button to set the WEP Encryption type and  
Wireless Security  
level.  
Note: WEP Encryption is an additional data security measure and  
not essential for Gateway operation.  
An acronym for Wired Equivalent Privacy, WEP is an encryption scheme used  
to protect your wireless data communications. WEP uses a combination of 64-  
bit or 128-bit keys to provide access control to your network and encryption  
security for every data transmission. To decode a data transmission, each point  
in a network must use an identical 64-bit or 128-bit key. Higher encryption lev-  
els mean higher levels of security, but due to the complexity of the encryption,  
they may mean decreased network performance.  
You may also have heard the term “40-bit” used in conjunction with WEP  
Encryption. This is simply another term for 64-bit WEP encryption. This level  
of WEP encryption has been called 40-bit because it uses a 40-bit secret key  
along with a 24-bit Initialization Vector (40 + 24 = 64). Wireless vendors may  
use either name. Linksys uses the term “64-bit” when referring to this level of  
encryption.  
Figure B-1  
3. The following screen may appear, verifying that you are enabling WEP  
If possible, make sure your wireless network is functioning before attempting  
to configure WEP.  
Encryption. Press the OK button to continue.  
A 128-bit WEP encrypted wireless network will NOT communicate with a 64-  
bit WEP encrypted wireless network. Therefore, make sure that all of your  
wireless devices are using the same encryption level. All wireless devices com-  
plying with the 802.11b standard will support 64-bit WEP.  
In addition to enabling WEP, Linksys also recommends the following security  
implementations:  
Changing the SSID from the default “linksys”  
Changing the WEP key regularly  
Figure B-2  
Note: In order for WEP Encryption to be enabled, wireless functions must first  
be enabled. Select Enable under the Wireless section before proceeding.  
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WEP Encryption key can be generated in one of two ways:  
4. The following screen will appear, where you will choose your WEP  
Encryption settings.  
1. You may create an encryption key by using a Passphrase.  
a. Enter a Passphrase, a user-defined password, into the Passphrase field.  
The Passphrase can be a maximum of 31 letters, symbols, and numbers.  
No spaces can be used.  
b. Click the Generate button to create a key. The key will be 10 digits if  
you chose 64-bit encryption, or 26 digits if you chose 128-bit encryp-  
tion. This key will be used to encrypt and decrypt the data being sent  
between the Gateway and your networks wireless PCs.  
The Key field may not display all digits. Using the mouse, click any-  
where within the Key field. Move the cursor to the right to view the rest  
of the Key. Make sure your write down the entire Key EXACTLY the  
way it is displayed.  
2. You may enter the encryption key manually.  
Make a note of the Passphrase or Manual Key. You will need it for other wire-  
less devices on the network, as the same WEP encryption key must be entered  
in all wireless devices on the network.  
Once you have chosen your key encryption method and entered either the  
Passphrase or manual key, click the Apply button, and the encryption portion  
of the setup is complete.  
Figure B-3  
WEP (64Bit or 128B) Select the level of encryption from the drop-down  
box. 128-bit WEP encryption is unique to Linksys and may conflict with  
other vendors’ WEP encryption.  
Note: In Windows XP, a 128-bit Key generated by the Gateway will be called a  
"104 bits (26 digits)" key, and a 64-bit Key generated by the Gateway will be  
called a “40 bits (10 digits)” key.  
Note: In order to utilize WEP encryption, all points in your wireless network  
must have WEP enabled and be set to the same Key Setting.  
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Configuring Wireless Security in Windows XP  
ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
2. In the “Control Panel” window, click the Network and Internet  
Connections icon.  
As Windows XP does not allow for the use of the Linksys Passphrase feature  
with the wireless PC adapters, you will need to manually enter the key gener-  
ated in the previous section.  
The following steps will help you enable WEP and enter the encryption key  
manually for your wireless PC cards, in order to enable your Windows XP sys-  
tem to communicate with the Gateway wirelessly.  
These steps assume that your CD-ROM drive is letter D and that you are run-  
ning Windows XP in the default mode.  
Figure B-5  
Be sure you have the WEP Key generated by the Gateway.  
1. Click the Start button and go to the Control Panel.  
3. Click on the Network Connections icon.  
Figure B-6  
4. The “Network Connections” window will appear. Under LAN or High-  
Speed Internet you will see all Network cards that are installed and operat-  
ing in your computer. Double-click the Wireless Network Connection  
icon associated with your wireless adapter.  
Figure B-4  
If the “Wireless Network Connection Status” window appears, continue to  
the next step.  
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If a “Connect to Wireless Network” window appears, in the Available  
Networks section, click the desired wireless network, specified by the  
Gateways SSID. Then, double-click the Wireless Network Connection  
icon.  
6. When the “Wireless Network Connection Properties” window appears,  
click the Wireless Networks Tab.  
Figure B-9  
Figure B-7  
7. If the appropriate wireless network, specified by the Gateways SSID, is  
displayed in the “Preferred networks” section, double-click it and continue  
to the next step.  
5. When the “Wireless Network Connection Status” window appears, click the  
Properties button.  
Otherwise, click on the appropriate wireless network, specified by the  
Gateways SSID, in the “Available networks” section. Then, click the  
Configure button.  
Figure B-8  
Figure B-10  
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8. The “Wireless Network Properties” window will appear.  
ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready  
Appendix C: Installing the  
TCP/IP Protocol  
Click the check box for the Data encryption (WEP enabled) option.  
Remove the check from the Network Authentication (Shared mode) and  
The key is provided for me automatically fields.  
Follow these instructions to install the TCP/IP protocol on one of your PCs only  
after a network card has been successfully installed inside the PC. These  
instructions are for Windows 95, Windows 98, and Windows Me. For TCP/IP  
setup under Windows NT, 2000, and XP, see your Windows manual.  
In the "Network key" field, enter the exact Key (all 10 or 26 digits, depend-  
ing on the level of encryption) generated by the Gateway.  
Verify that the “Key format” field displays “Hexadecimal digits” and that  
the “Key length” field displays either “40 bits (10 digits)” or “104 bits (26  
digits)”. If this is not displayed, you have entered the key incorrectly.  
1. Click the Start button. Choose Settings and then Control Panel.  
2. Double-click on the Network icon to bring up your Network window.  
Select the Configuration tab.  
Figure C-1  
3. Click the Add button.  
Figure B-11  
4. Double-click on Protocol.  
Click the OK button to save the settings. Click on OK buttons until you  
get back to the “Wireless Network Connection Status” window. Close any  
open windows to get back to the Windows XP desktop.  
5. Highlight Microsoft under the list of manufacturers.  
Close any applications and reboot your PC. After reboot, WEP configuration  
is complete and you should be able to connect wirelessly to the Gateway.  
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6. Find and double-click TCP/IP in the list to the right (see Figure C-2).  
Appendix D: Finding the MAC  
Address and IP Address for Your  
Ethernet Adapter  
This section describes how to find the MAC address for your Ethernet adapter  
to do either MAC Filtering for the Gateway and ISP. You can also find the IP  
address of your computers Ethernet adapter. The IP address is used for filter-  
ing. Follow the steps in this appendix to find the MAC address or IP address  
for your adapter in Windows 95, 98, Me, NT, 2000, and XP.  
Figure C-2  
For Windows 95, 98, and Me:  
7. After a few seconds, the main Network window will appear. The TCP/IP  
Protocol should now be listed.  
1. Click on Start and Run. In the Open field, enter winipcfg. Then press the  
Enter key or the OK button.  
Figure D-1  
2. When the IP Configuration window appears, select the Ethernet adapter  
you are using to connect to the Gateway via a CAT 5 Ethernet cable.  
Figure C-3  
8. Click the OK button. Windows may ask for original Windows installation  
files. Supply them as needed, e.g., c:\windows\options\cabs, D:\win98,  
D:\win95.  
9. Windows will ask you to restart the PC. Click the Yes button.  
The TCP/IP installation is now complete.  
Figure D-2  
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3. Write down the Adapter Address as shown on your computer screen (see  
Figure D-3). This is the MAC address for your Ethernet adapter and will  
be shown as a series of numbers and letters.  
2. In the command prompt, enter ipconfig /all. Then press the Enter key.  
The MAC address/Adapter Address is what you will use for MAC  
Filtering.  
Figure D-3  
The example in Figure D-3 shows the IP address of your Ethernet adapter  
as 192.168.1.100. Your computer may show something different.  
Figure D-5  
Note: The MAC address is also called the Adapter  
Address.  
3. Write down the Physical Address as shown on your computer screen; it is  
the MAC address for your Ethernet adapter. This will appear as a series of  
letters and numbers.  
For Windows NT, 2000, and XP:  
The following steps show an alternative way of obtaining the MAC address and  
IP address for your Ethernet adapter.  
The MAC address/Physical Address is what you will use for MAC  
Filtering.  
Note: The MAC address is also called the Physical  
Address.  
1. Click on Start and Run. In the Open field, enter cmd. Press the Enter key  
or click the OK button.  
The example in Figure D-5 shows the IP address of your Ethernet adapter  
as 192.168.1.100. Your computer may show something different.  
Figure D-4  
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When entering the information using the Routers web-based utility, you will  
type the 12-digit MAC address in this format, XXXXXXXXXXXX without  
the hyphens for MAC Filtering.  
Appendix E: Specifications  
Standards:  
ANSI T1.413i2, ITU-T G.dmt (G.992.1), ITU G.lite  
(G992.2), PC Card 16-bit standard, IEEE 802.3  
(10BaseT), IEEE 802.3u (100BaseTX), IEEE 802.11b  
(Wireless)*  
Protocols:  
RFC 1483, RFC 2364 PPPoA, RFC 2516 PPPoE  
Ports/Switches/Buttons:  
ADSL:  
RJ-11 ADSL Port  
LAN:  
Four 10/100 RJ-45 Switched Ports  
PCMCIA:  
Switch:  
Button:  
Type II Slot (for use with Linksys WPC11 only)  
On/Off  
Reset  
Speed:  
ADSL:  
8 Mbps downstream, 800 kbps upstream  
10/100 Mbps (Half/Full Duplex)  
Up to 11 Mbps  
LAN:  
Wireless*:  
Figure D-6  
Cabling Type:  
ADSL:  
Standard Telephone Cable  
UTP Category 5 or better  
LAN:  
LEDs:  
ADSL:  
LAN:  
Power, Diag  
Session, Link, Act  
100, Full/Col, Link/Act  
Link, Act  
WLAN:  
* Requires Optional WPC11 (sold separately) for  
Wireless Connectivity  
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Environmental  
Appendix F: Warranty Information  
BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE  
FROM THE PRODUCT’S PACKAGING ON HAND WHEN CALLING.  
RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF  
PURCHASE.  
Dimensions:  
7.32" x 6.06" x 2.52" (186 mm x 154 mm x 62 mm)  
14.4 oz. (0.40 kg)  
Unit Weight:  
Power:  
External, 12V AC, 1.25 A  
IN NO EVENT SHALL LINKSYS’S LIABILITY EXCEED THE PRICE  
PAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCI-  
DENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE  
USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS  
DOCUMENTATION. LINKSYS DOES NOT OFFER REFUNDS FOR ANY  
PRODUCT.  
Certifications:  
Operating Temp.:  
Storage Temp.:  
Operating Humidity:  
Storage Humidity:  
FCC Class B, Part 68, CE Mark  
0ºC to 40ºC (32ºF to 104ºF)  
0ºC to 60ºC (32ºF to 140ºF)  
10% to 85%, Non-Condensing  
10% to 90%, Non-Condensing  
LINKSYS OFFERS CROSS SHIPMENTS, A FASTER PROCESS FOR PRO-  
CESSING AND RECEIVING YOUR REPLACEMENT. LINKSYS PAYS  
FOR UPS GROUND ONLY. ALL CUSTOMERS LOCATED OUTSIDE OF  
THE UNITED STATES OF AMERICA AND CANADA SHALL BE HELD  
RESPONSIBLE FOR SHIPPING AND HANDLING CHARGES. PLEASE  
CALL LINKSYS FOR MORE DETAILS.  
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Appendix G: Contact Information  
For help with the installation or operation of your ADSL Gateway with Modem  
/ Router / 4-Port Switch / Wireless-Ready, contact Linksys Technical Support  
at one of the phone numbers or Internet addresses below.  
Sales Information  
Technical Support  
800-546-5797 (1-800-LINKSYS)  
800-326-7114 (toll free from U.S. or Canada)  
949-271-5465 (6:00 am to 5:00 pm PST)  
949-271-5461  
RMA Issues  
Fax  
949-265-6655  
Email  
Web site  
FTP site  
© Copyright 2002 Linksys, All Rights Reserved.  
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