LINKSYS WET54GV3 Wireless-G Ethernet Bridge User Manual Book

LINKSYS LLC Wireless-G Ethernet Bridge Book

Users Manual

A Division of Cisco Systems, Inc.
®
Model No.
Ethernet Bridge
Wireless-G
WET54G v3
User Guide
WIRELESS
GHz
2.4
802.11g
Wireless-G Ethernet Bridge
Copyright and Trademarks
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
How to Use this Guide
Your guide to the Wireless-G Ethernet Bridge has been designed to make understanding networking with the
Wireless-G Ethernet Bridge easier than ever. Look for the following items when reading this guide:
In addition to these symbols, there are definitions for technical terms that are presented like this:
Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:
Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.
This exclamation point means there is a Caution or
warning and is something that could damage your
property or the Wireless-G Ethernet Bridge.
word: definition.
This checkmark means there is a Note of interest and
is something you should pay special attention to while
using the Wireless-G Ethernet Bridge.
This question mark provides you with a reminder about
something you might need to do while using the Wireless-G
Ethernet Bridge.
Figure 0-1: Sample Figure Description
WET54G_V3-UG-50729B BW
Wireless-G Ethernet Bridge
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this Guide? 2
Chapter 2: Planning Your Wireless Network 4
Network Topology 4
Network Layout 5
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge 6
The Back Panel 6
The Front Panel 7
Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup 8
Chapter 5: Setting Up the Wireless-G Ethernet Bridge 9
Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use 14
Connection to a Network Device 14
Placement Options 14
Chapter 7: Using the Wireless-G Ethernet Bridge
Web-based Utility 16
Overview 16
Starting the Web-based Utility 16
Setup 17
Password 24
Advanced Settings 24
Status 26
Help 27
Appendix A: Troubleshooting 28
Common Problems and Solutions 28
Frequently Asked Questions 29
Appendix B: Wireless Security 32
Security Precautions 32
Security Threats Facing Wireless Networks 32
Appendix C: Upgrading Firmware 35
Appendix D: Windows Help 36
Wireless-G Ethernet Bridge
Appendix E: Glossary 37
Appendix F: Specifications 43
Appendix G: Warranty Information 45
Appendix H: Regulatory Information 46
Appendix I: Contact Information 48
Wireless-G Ethernet Bridge
List of Figures
Figure 2-1: Infrastructure Network 4
Figure 2-2: Ad-Hoc Network 5
Figure 2-3: Network Using Wireless Bridging 5
Figure 3-1: Back Panel 6
Figure 3-2: Front Panel 7
Figure 4-1: Connect to the Network 8
Figure 4-2: Connect the Power 8
Figure 5-1: Welcome 9
Figure 5-2: Connection 9
Figure 5-3: List of Bridges 10
Figure 5-4: Password 10
Figure 5-5: Mode Settings 10
Figure 5-6: Wireless Settings 11
Figure 5-7: IP Settings 11
Figure 5-8: Security Settings-WEP 12
Figure 5-9: Security Settings-WPA-PSK 12
Figure 5-10: Confirmation 13
Figure 5-11: Congratulations 13
Figure 6-1: Horizontal Placement 14
Figure 6-2: Vertical Placement 15
Figure 7-1: Password Screen 16
Figure 7-2: Setup Tab 17
Figure 7-3: Site Survey 18
Figure 7-4: Security Settings 18
Figure 7-5: WEP 19
Figure 7-6: WPA Pre-Shared Key 20
Figure 7-7: Log Table 20
Figure 7-8: RADIUS-MD5 21
Figure 7-9: RADIUS-TLS 22
Wireless-G Ethernet Bridge
Figure 7-10: RADIUS-TTLS 23
Figure 7-11: Password Tab 24
Figure 7-12: Advanced Settings Tab 24
Figure 7-13: Status Tab 26
Figure 7-14: Help Tab 27
Figure 7-15: Firmware Upgrade 27
Figure C-1: Firmware Upgrade 35
1
Chapter 1: Introduction
Welcome
Wireless-G Ethernet Bridge
Chapter 1: Introduction
Welcome
Thank you for choosing the Wireless-G Ethernet Bridge. The versatile Wireless-G Ethernet Bridge can make any
wired Ethernet-equipped device a part of your wireless network. At home, use the Bridge to connect game
consoles, set-top boxes, or computers to your Wireless-G network and its shared high-speed Internet connection.
In the office, convert your Ethernet-wired printer, camera, notebook or desktop into a wireless networked device.
It's completely driver-free, so it works on any platform and under any operating system! Since there's no drivers
to load, setup is a snap—configure the network settings through your PC's web browser, then plug it into your
device and go. And physical installation is simplified by support for Power Over Ethernet. With an optional POE
Adapter, you can mount the Bridge wherever you want—power and data are both supplied through the Category
5 Ethernet cable.
You can also use the Wireless-G Ethernet Bridge as a kind of “cable-less cable” to connect remote areas
together. Maybe Shipping is all the way across the warehouse from Receiving. Or maybe you want to set up a
home office in your detached garage. With a Wireless-G Ethernet Bridge in the garage, and another one (or a
Wireless-G Access Point) in the house, you're connected—no digging trenches, and no overhead wires. Let the
Wireless-G Ethernet Bridge from Linksys open up exciting new possibilities for your wireless network.
Use the instructions in this Guide to help you set up and connect the Bridge. These instructions should be all you
need to get the most out of the Wireless-G Ethernet Bridge.
Ethernet: an IEEE standard network
protocol that specifies how data is
placed on and retrieved from a
common transmission medium.
802.11g: an IEEE wireless networking
standard that specifies a maximum
data transfer rate of 54Mbps, an
operating frequency of 2.4GHz, and
backward compatibility with 802.11b
devices.
2
Chapter 1: Introduction
What’s in this Guide?
Wireless-G Ethernet Bridge
What’s in this Guide?
This user guide covers the steps for setting up and using the Wireless-G Ethernet Bridge.
• Chapter 1: Introduction
This chapter describes the Wireless-G Ethernet Bridge applications and this user guide.
• Chapter 2: Planning your Wireless Network
This chapter describes the basics of wireless networking.
• Chapter 3: Getting to Know the Wireless-G Ethernet Bridge
This chapter describes the physical features of the Bridge.
• Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup.
This chapter instructs you on how to connect the Bridge to your network for setup.
• Chapter 5: Setting Up the Wireless-G Ethernet Bridge.
This chapter explains how to set up the Bridge using the Setup Wizard.
• Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use.
This chapter explains how to connect the Bridge to a network device so the device can join your wireless
network. It also describes placement options for the Bridge.
• Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
This chapter explains how to use the Web-based Utility so you can change the Bridge’s settings or advanced
configuration.
• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-G Ethernet Bridge.
• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.
• Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on the Bridge should you need to do so.
• Appendix D: Windows Help
This appendix describes how you can use Windows Help for instructions about networking, such as installing
the TCP/IP protocol.
3
Chapter 1: Introduction
What’s in this Guide?
Wireless-G Ethernet Bridge
• Appendix E: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
• Appendix F: Specifications
This appendix provides the technical specifications for the Bridge.
• Appendix G: Warranty Information
This appendix supplies the warranty information for the Bridge.
• Appendix H: Regulatory Information
This appendix supplies the regulatory information regarding the Bridge.
• Appendix I: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
4
Chapter 2: Planning Your Wireless Network
Network Topology
Wireless-G Ethernet Bridge
Chapter 2: Planning Your Wireless Network
Network Topology
A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each
computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same
frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the
same wireless network.
Ad-Hoc versus Infrastructure Mode
Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure
and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an
access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other.
Choosing between these two modes depends on whether or not the wireless network needs to share data or
peripherals with a wired network or not.
If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral,
such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure
mode. The basis of Infrastructure mode centers around an access point, which serves as the main point of
communications in a wireless network (see Figure 2-1). Access points transmit data to PCs equipped with
wireless network cards, which can roam within a certain radial range of the access point. Multiple access points
can be arranged to work in succession to extend the roaming range, and can be set up to communicate with your
Ethernet hardware as well.
If the wireless network is relatively small and needs to share resources only with the other computers on the
wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless
transmitters and receivers to communicate directly with each other, eliminating the need for an access point. The
drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to communicate with
computers on a wired network. And, of course, communication between the wireless-equipped computers is
limited by the distance and interference directly between them.
Figure 2-2 shows a typical scenario of four Wireless-G Ethernet Bridges in ad-hoc mode. Figure 2-3 shows a
typical wireless bridging scenario using two Wireless-G Ethernet Bridges. Each wireless network is connected to
a Wireless-G Ethernet Bridge through a switch. A separate notebook computer is equipped with a wireless
network adapter and can communicate with either wireless network when it is configured with the appropriate
SSID and channel.
SSID: your wireless network’s name.
LAN (Local Area Network): the
computers and networking products
that make up your local network.
Figure 2-1: Infrastructure Network
Infrastructure: a wireless network
that is bridged to a wired network via
an access point.
Ad-hoc: a group of wireless devices
communicating directly to each other
(peer-to-peer) without the use of an
access point.
5
Chapter 2: Planning Your Wireless Network
Network Layout
Wireless-G Ethernet Bridge
Network Layout
The Wireless-G Ethernet Bridge is compatible with all 802.11b and 802.11g routers, such as model numbers
BEFW11S4 and WRT54G, as well as access points, including model numbers WAP11 and WAP54G. The Camera
will also communicate with network adapters, such as the Wireless-B and Wireless-G Network Adapters (model
numbers WPC11 and WPC54G) for your laptop computers, Wireless-B and Wireless-G PCI Adapters (model
numbers WMP11 and WMP54G) for your desktop PCs, and Wireless-B and Wireless-G USB Adapters (model
numbers WUSB11 and WUSB54G) for your computers when you want to enjoy USB connectivity.
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about products that work with the Wireless-G Ethernet Bridge.
Figure 2-3: Network Using Wireless Bridging
Figure 2-2: Ad-Hoc Network
6
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge
The Back Panel
Wireless-G Ethernet Bridge
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge
The Back Panel
All connections to the Bridge are made through the ports on its back panel, shown in Figure 3-1.
Reset When pressed, the Reset button resets the Bridge to its factory default settings.
LAN The LAN port is where you will connect the Ethernet network cable.
Power The Power port is where you will connect the power adapter.
Important: If you reset the Wireless-G Ethernet Bridge, you will
erase all of your settings (WEP encryption, wireless settings,
etc.) and replace them with the factory defaults. Do not reset the
Wireless-G Ethernet Bridge if you want to retain these settings.
Figure 3-1: Back Panel
NOTE: If you use a Power over Ethernet (PoE) device to supply
data and power through the Ethernet network cable, then you
do not need to use the Power port.
7
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge
The Front Panel
Wireless-G Ethernet Bridge
The Front Panel
The LEDs indicate network activity experienced by the Bridge. (See Figure 3-2.)
Power Green. The Power LED will light up when the Bridge is powered on. While the Bridge is booting
up and performing a self-test, the Power LED will flash. It will stop flashing and remain lit
when the self-test has ended.
Ethernet Green. The Ethernet LED will be lit steadily when the Bridge is connected to the wired network.
The LED will flash when there is wired network traffic.
Wireless-G Green. The Wireless-G LED will be lit steadily when the Bridge is connected to the wireless
network. The LED will flash when there is wireless network traffic.
Figure 3-2: Front Panel
8
Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup
Wireless-G Ethernet Bridge
Chapter 4: Connecting the Wireless-G Ethernet Bridge for
Setup
1. Attach the Bridge’s antenna.
2. Plug the included Ethernet network cable into the LAN port on the back panel of the Bridge, shown in Figure
4-1.
3. Plug the other end of the Ethernet network cable into the RJ-45 port of the hub, switch, or PC you wish to use
to configure the Bridge.
4. Plug the supplied power cable into the Power port on the back panel of the Bridge, shown in Figure 4-2. Then
plug the other end into an electrical outlet.
Proceed to “Chapter 5: Setting Up the Wireless-G Ethernet Bridge.”
Figure 4-1: Connect to the Network
Figure 4-2: Connect the Power
9
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Now that you’ve connected the Wireless-G Ethernet Bridge to your wired network, you are ready to set it up. The
Setup Wizard will guide you through all the necessary steps.
1. Insert the Setup CD-ROM into your PC’s CD-ROM drive. The Setup Utility should run automatically, and the
screen in Figure 5-1 should appear. If it does not, click the Start button and choose Run. In the field that
appears, enter D:\setup.exe (if “D” is the letter of your CD-ROM drive).
• Setup - Click the Setup button to proceed with the Setup Wizard.
• User Guide - Click the User Guide button to open the PDF file of this User Guide.
• LINKSYS Web - Click the LINKSYS Web button to access the Linksys website using an active Internet
connection.
• Exit - Click the Exit button to exit the Setup Wizard.
2. Click the Setup button to begin the setup process.
3. Make sure the Bridge is correctly connected to your wired network (see Figure 5-2). Then click the Next
button.
Figure 5-2: Connection
Figure 5-1: Welcome
Note: While the Wireless-G Ethernet Bridge has
been designed to work correctly right out of the box,
setting it up on a wireless computer will require you
to use the Linksys default settings (SSID: linksys and
mode: infrastructure). These settings can then be
changed through the Bridge’s Setup Wizard or Web-
based Utility.
10
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge
4. The screen shown in Figure 5-3 displays a list of Wireless-G Ethernet Bridges on your network, along with the
status information for each Bridge. (If you have only one Bridge on your network, it will be the only one
displayed.) Select the Bridge you are currently installing by clicking its name in the Selection box. Write down
the IP address of the Wireless-G Ethernet Bridge, so you can use it to access the Web-based Utility later. Then
click the Yes button.
5. For security purposes, you will be asked for your password in order to access the Bridge, as shown in Figure
5-4. In lowercase letters, enter admin in the Password field (later you can change the password through the
Web-based Utility). Then click the Enter button.
6. The screen shown in Figure 5-5 shows a choice of two wireless modes. Click the Infrastructure radio button
if you want your wireless computers to network with computers on your wired network using a wireless
access point. Click the Ad-Hoc radio button if you want multiple wireless computers to network directly with
each other. Do not use the Ad-Hoc mode if you want to network your wireless computers with computers on
your wired network.
In the WB Name field, enter a unique name for the Bridge. Memorable names are helpful, especially if you are
using multiple bridges on the same network. Click the Next button to continue or the Back button to return to
the previous screen.
Figure 5-4: Password
Figure 5-3: List of Bridges
Figure 5-5: Mode Settings
11
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge
7. The Wireless Settings screen, shown in Figure 5-6, will now appear. Enter your wireless network’s SSID. If you
chose Ad-Hoc mode, select the channel at which the network broadcasts its wireless signal.
If you have Wireless-G (802.11g) and Wireless-B (802.11b) devices in your network, then keep the default
Network Mode setting, Mixed. If you have only Wireless-G devices, select G-Only. Then click the Next button
to continue or the Back button to return to the previous screen.
• SSID - The SSID is the unique name shared among all devices in a wireless network. The SSID must be
identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 alphanumeric
characters, which can be any keyboard character.
• Channel - From the drop-down menu, select the appropriate channel to match your network settings
(available for Ad-Hoc mode only). All devices in your wireless network must use the same channel in order to
communicate.
• Network Mode - Keep the default setting, Mixed, if you have Wireless-G and Wireless-B devices in your
network. Select G-Only if you have only Wireless-G devices in your network.
8. The IP Settings screen will appear next, shown in Figure 5-7. If your network has a DHCP server, click the
radio button next to Automatically obtain an IP address (DHCP). Click the Next button to continue or the
Back button to return to the previous screen. Then proceed to step 9.
If your network does not have a DHCP server, click the radio button next to Set IP configuration manually to
select this option. Enter an IP Address, IP Mask, and Gateway appropriate to your network. You must specify
an IP address on this screen. If you are unsure about the IP Mask and Gateway, it is better to leave these two
fields blank. Click the Next button to continue or the Back button to return to the previous screen. Then
proceed to step 9.
• IP Address - This IP address must be unique to your network.
• IP Mask - The Bridge’s IP Mask (also known as Subnet Mask) must be the same as your wired network’s
Subnet Mask.
• Gateway - Enter the IP address of your network’s Gateway (usually this is your router’s IP address).
Figure 5-7: IP Settings
Figure 5-6: Wireless Settings
12
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge
9. The Security Settings (Optional) screen, shown in Figure 5-8, appears next. From the drop-down menu, select
one of the wireless security mode options supported by the Bridge: WPA PSK (Pre-Shared Key) and WEP. (WPA
stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for
Wired Equivalent Privacy. If you do not want to use the security function, keep the default setting, Disabled.
The security modes are briefly discussed below. For more detailed instructions on configuring wireless
security for the Bridge, refer to “Appendix B: Wireless Security.”
WEP (64-bit WEP/128-bit WEP) - In order to utilize WEP encryption, select 64-bit or 128-bit WEP from the
drop-down menu. Then, enter a Passphrase. (If you want to enter a WEP key manually, leave the Passphrase
field blank, and complete the Key 1 field.) Click the Next button to continue.
• Passphrase - Instead of manually entering a WEP key, you can enter a Passphrase, so a WEP key will be
automatically generated. The Passphrase is case-sensitive and should have 16 or fewer alphanumeric
characters. It must match the passphrase of your wireless network and is compatible with Linksys wireless
products only. (You will have to enter the WEP key(s) manually on any non-Linksys wireless products.
If you want to manually enter a WEP key, leave the Passphrase field blank and complete the Key 1 field.
• Key 1 - If you entered a Passphrase, then you will see the automatically generated WEP key. Click the Next
button, and proceed to step 10.
If you did not enter a Passphrase, then enter a WEP key in the Key 1 field. If you are using 64-bit WEP
encryption, then the key must consist of exactly 10 hexadecimal characters. If you are using 128-bit WEP
encryption, then the key must consist of exactly 26 hexadecimal characters. Valid hexadecimal characters
are “0”-“9” and “A”-“F”. Then click the Next button, and proceed to step 10.
WPA PSK - In order to utilize WPA PSK, select WPA PSK from the drop-down menu. WPA PSK gives you one
encryption method, TKIP, with dynamic encryption keys. Select the type of algorithm, TKIP, then enter a Pre-
Shared Key of 8-32 characters. (See Figure 5-9.)
Figure 5-8: Security Settings-WEP
Figure 5-9: Security Settings-WPA-PSK
13
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge
10. Review your settings on the Confirmation screen, shown in Figure 5-10. Write down the Bridge’s IP Address if
you want to configure advanced settings through the Bridge’s Web-based Utility. Click the Yes button to save
these settings. Click the No button to exit the Setup Wizard.
11. The next screen, shown in Figure 5-11, shows that the configuration is complete. To configure any other
Wireless-G Ethernet Bridges on your network, run this Setup Wizard again. To register the Bridge, click the
Online Registration button. To exit the Setup Wizard, click the Exit button.
The Wireless-G Ethernet Bridge is now successfully configured for your network.
For advanced configuration, proceed to “Chapter 7: Using the Wireless-G Ethernet Bridge Web-based
Utility.” Otherwise, go to “Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use.”
Figure 5-10: Confirmation
Figure 5-11: Congratulations
14
Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use
Connection to a Network Device
Wireless-G Ethernet Bridge
Chapter 6: Connecting the Wireless-G Ethernet Bridge for
Network Use
Connection to a Network Device
1. After configuration, unplug the power cable from the electrical outlet, and unplug the Ethernet network cable
from the PC.
2. Plug the Ethernet network cable into the RJ-45 port on the Ethernet-ready network device you wish to add to
the wireless network.
3. Plug the power cable into a local electrical outlet.
The installation of the Wireless-G Ethernet Bridge is complete. Proceed to the next section, “Placement
Options,” if you want to mount the Bridge on a wall or have the Bridge stand on a surface.
Placement Options
There are three ways to place the Bridge. The first way is to place the Bridge horizontally on a surface, as shown
in Figure 6-1. (If necessary, adjust the antenna so that it points straight up in the air.) The second way is to hang
the Bridge on a wall, with the Bridge in a vertical position. The third way is to stand the Bridge vertically on a
surface. The second and third options are explained in further detail below.
Wall Mount Option
1. The Bridge has eight rubber inserts, four on each side. Depending on how you want to mount the Bridge,
remove two of the rubber inserts.
2. Attach two screws to the wall, so that the Bridge’s wall-mount slots line up with the two screws.
3. Maneuver the Bridge so the screws are inserted into the two slots.
4. If necessary, adjust the antenna so that it points straight up in the air.
The installation of the Wireless-G Ethernet Bridge is complete.
Figure 6-1: Horizontal Placement
Note: The Bridge features Power Over Ethernet
(PoE) support. PoE technology allows a PoE
adapter (also known as a power injector,
power hub, or inline power device) to supply
data and power to an Ethernet device using a
single Ethernet network cable. To use the
Bridge’s PoE feature, follow the instructions
for your specific PoE device.
15
Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use
Placement Options
Wireless-G Ethernet Bridge
Stand Option
1. The Bridge has eight rubber inserts, four on each side. Remove the two rubber inserts that are adjacent to the
power port.
2. The Bridge includes two triangular stands. Insert a stand into an opening. Push the stand up to snap it into
place.
3. Repeat step 2 using the second stand.
4. Place the Bridge in an appropriate location.
5. If necessary, adjust the antenna so that it points straight up in the air. (See Figure 6-2.)
The installation of the Wireless-G Ethernet Bridge is complete.
Figure 6-2: Vertical Placement
16
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Overview
Wireless-G Ethernet Bridge
Chapter 7: Using the Wireless-G Ethernet Bridge
Web-based Utility
Overview
The Bridge is designed to function properly after you configure it using the Setup Wizard. However, if you would
like to change these basic settings or make advanced configuration changes, use your web browser and the
Wireless-G Ethernet Bridge Web-based Utility. This chapter explains how to use the Utility.
Starting the Web-based Utility
1. Open your web browser, and enter the IP address of the Wireless-G Ethernet Bridge (the default is
192.168.1.226). Press the Enter key, and the screen shown in Figure 7-1 will appear. In lowercase letters,
enter the default password, admin, in the Password field. Click the OK button. You can set a new password
on the Password screen later.
2. The Utility’s Setup screen, shown in Figure 7-2, will appear.
The Utility provides a convenient, web-browser-based way to alter the Bridge’s settings. It offers five main
tabs:
• Setup - Enables you to configure the IP address and wireless settings.
• Password - Allows you to change the password or reset all settings to factory defaults.
• Advanced - Lets you change the advanced wireless settings and clone a MAC address onto the Bridge.
• Status - Displays the Bridge’s current settings.
• Help - Provides explanations of various configuration settings and links to online technical support resources.
You can also upgrade the Bridge’s firmware using the Help screen.
Have You: Enabled TCP/IP on your PCs? PCs
communicate over the network with this
protocol. Refer to “Appendix D: Windows Help”
for more information on TCP/IP.
Note: The Wireless-G Ethernet Bridge is
designed to function properly after you use
the Setup Wizard. However, if you would like
to change its basic settings or make
advanced configuration changes, use your
web browser and the Wireless-G Ethernet
Bridge Web-based Utility.
Figure 7-1: Password Screen
17
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
Setup
The Setup screen, shown in Figure 7-2, lets you configure the wired and wireless network settings for the Bridge.
• Firmware - The version number of the Bridge’s firmware is displayed here. Firmware should be upgraded
ONLY if you experience problems with the Bridge. Firmware updates are posted at www.linksys.com.
• MAC Address - The MAC Address of the Bridge is displayed here.
LAN
• Device Name - You may assign any name to the Bridge. Unique, memorable names are helpful, especially if
you are using multiple bridges on the same wireless network.
• Configuration Type - If the Bridge will obtain an IP address automatically from a DHCP server, such as a router,
then select Automatic Configuration-DHCP. If you are assigning the Bridge a static IP address, then select
Static IP Address, and enter an IP Address, Subnet Mask, and Gateway address in the IP Address, Subnet
Mask, and Gateway fields.
Wireless
• SSID - The SSID is the network name shared among all devices in a wireless network. The SSID must be
identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 alphanumeric
characters, which may be any keyboard character (do not use any spaces). Make sure this setting is the same
for all devices in your wireless network. For added security, Linksys recommends that you change the default
SSID (linksys) to a name of your choice.
To search for available wireless networks, click the Site Survey button.
• Network Type - Choose a wireless operating mode for the Bridge. Keep the default setting, Infrastructure, if
you want your wireless-equipped device to communicate with computers and other devices on your wired
network using a wireless access point. Select Ad-Hoc button if you want multiple wireless-equipped devices
to communicate directly with each other.
If you chose Ad-Hoc mode, then select the correct operating channel for your network from the Channel drop-
down menu. This should match the channel setting of the other devices in your wireless network.
Select the appropriate network mode. Keep the default, Mixed, if you have Wireless-G (802.11g) and
Wireless-B (802.11b) devices in your network. Select G-Only if you have only Wireless-G devices in your
network.
Figure 7-2: Setup Tab
18
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
• Wireless Site Survey
The Wireless Site Survey screen, shown in Figure 7-3 shows all the wireless networks detected by the Bridge
and their general information. You can use this screen to connect to one of these networks.
For each wireless network detected, the following information is displayed:
• SSID - The network name. To join a wireless network, click its SSID.
• MAC Address - The MAC address of the network’s access point.
• Channel - The channel setting.
• Signal Strength (%) - The percentage of wireless signal strength.
• Mode - The type of wireless standard, network mode, and status of WEP encryption.
Click the Refresh button to obtain the most up-to-date data. Click the Cancel button to close this screen. Click the
Help button for additional on-screen information.
• Security
Security - To enable security, select Enable, then click Edit Security Settings. If you have not enabled
security before clicking on Edit Security Settings, the screen in Figure 7-4 will appear. To disable security,
select Disable.
To save your changes, click the Apply button. Click the Cancel button to cancel your changes. Click the Help
button for additional on-screen information.
Figure 7-3: Site Survey
NOTE: Make sure that your security choice
matches the security choice of the wireless
network you want to join. Otherwise, the
connection will fail.
Figure 7-4: Security Settings
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
If you click Edit Security Settings, The Security screen, as shown in Figure 7-5, will appear. From the drop-
down menu, select one of the four wireless security modes supported by the Bridge: WPA Pre-Shared Key,
WPA RADIUS, RADIUS, and WEP. (WPA stands for Wi-Fi Protected Access, which is a security standard
stronger than WEP encryption. WEP stands for Wired Equivalent Privacy, while RADIUS stands for Remote
Authentication Dial-In User Service) .The four security modes are briefly discussed here. For detailed
instructions on configuring wireless security for the Bridge, turn to “Appendix B: Wireless Security.”
WEP
Use the WEP screen, shown in Figure 7-5, to configure the WEP encryption for the Bridge. Select a Default
Transmit Key (choose which Key to use), and a level of WEP Encryption, 64 bits (10 hex digits) or (128 bits
26 hex digits). Then either generate a WEP Key using a Passphrase or enter the WEP key manually.
• Default Transmit Key - Select which WEP key (1-4) will be used when the Bridge sends data. Make sure
the other wireless-equipped devices are using the same key.
• WEP Encryption - In order to use WEP encryption, select 64-Bit (10 hex digits) or 128-Bit (26 hex
digits) from the drop-down menu.
• Passphrase - Instead of manually entering WEP keys, you can enter a Passphrase. This Passphrase is
used to generate one or more WEP keys. It is case-sensitive and should not be longer than 16
alphanumeric characters. (The Passphrase function is compatible with Linksys wireless products only. If
you want to communicate with non-Linksys wireless products, you will need to enter your WEP key
manually on the non-Linksys wireless products.) After you enter the Passphrase, click the Generate
button to create WEP key(s).
• Keys 1-4 - If you are not using a Passphrase, then you can enter one or more WEP keys manually.
In each key field, manually enter a set of values. (Do not leave a key field blank, and do not enter all
zeroes. These are not valid key values.) If you are using 64-bit WEP encryption, then each key must
consist of exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then
each key must consist of exactly 26 hexadecimal characters in length. Valid hexadecimal characters are
“0”-“9” and “A”-“F”.
Click the Apply button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh button of your web browser.
Figure 7-5: WEP
20
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
WPA Pre-Shared Key
WPA gives you TKIP for the encryption method. Enter a WPA Shared Key of 8-32 characters. (See Figure 7-6.)
Enter a key shared between the Bridge and the server.
Click the Apply button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh button of your web browser. Click the View Log button to view a log.
The Log Table screen appears in Figure 7-7. The log shows the authentication process.
Click the Refresh button to refresh the screen. Click the Close button to return to the the previous screen.
Figure 7-7: Log Table
Figure 7-6: WPA Pre-Shared Key
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
RADIUS
This option features WEP used in coordination with a RADIUS server. (This should only be used when a
RADIUS server is connected to the Router.) It offers three authentication methods: MD5, TLS, and TTLS.
EAP Type
MD5
Select a Default Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128
bits 26 hex digits. Then either generate a WEP key using a Passphrase or enter the WEP key manually. (See
Figure 7-8.)
• Default Transmit Key Select which WEP key (1-4) will be used when the Bridge sends data. Make sure that
the receiving device (wireless client) is using the same key.
• WEP Encryption. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your
wireless data communications. WEP uses 64-bit or 128-bit keys to provide access control to your network
and encryption security for every data transmission. To decode data transmissions, all devices in a network
must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the
complexity of the encryption, they may decrease network performance. Select 64 bits (10 hex digits) or 128
bits (26 hex digits).
• Passphrase. Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is used to
generate one or more WEP keys. It is case-sensitive and should not be longer than 32 alphanumeric
characters. (This Passphrase function is compatible with Linksys wireless products only and cannot be used
with Windows XP Zero Configuration. If you want to communicate with non-Linksys wireless products or
Windows XP Zero Configuration, make a note of the WEP key generated in the Key 1 field, and enter it
manually in the wireless client.) After you enter the Passphrase, click the Generate button to create WEP
keys.
• Keys 1-4. WEP keys enable you to create an encryption scheme for wireless network transmissions. If you are
not using a Passphrase, then manually enter a set of values. (Do not leave a key field blank, and do not enter
all zeroes; they are not valid key values.) If you are using 64-bit WEP encryption, the key must be exactly 10
hexadecimal characters in length. If you are using 128-bit WEP encryption, the key must be exactly 26
hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.
• User ID and Password. A user identification and password are required for your security. Enter the ID in the
User ID field, then the password in the Password field.
When finished making your changes on this tab, click the Apply button to save these changes.
Figure 7-8: RADIUS-MD5
Encryption - Encoding data transmitted in a
network.
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
TLS
TLS is a mutual authentication method that uses digital certificates.Select TLS from the EAP Type drop-down
menu. Enter the Login name of your wireless network in the User ID field. Enter the User Certificate and Root
Certificate in the fields or click the Browse button to browse for it, then upload it.
• EAP Type - The authentication method that your network uses. Select TLS from the drop-down menu.
• User ID -Your User ID is the Login name of your wireless network. Enter the Login name of your wireless
network in the User ID field.
• User Certificate - Enter the user certificate you have installed to authenticate you on your wireless network or
click the Browse button to browse for it. Click the Upload button to upload the certificate.
• Root Certificate - Enter the root certificate you have installed to authenticate you on your wireless network or
click the Browse button to browse for it. Click the Upload button to upload the certificate.
Click the Apply button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh button of your web browser. Click the View Log button to view a log.
Figure 7-9: RADIUS-TLS
TLS (Transport Layer Security) - A mutual authentication
method that uses digital certificates.
EAP (Extensible Authentication Protocol) - A general
authentication protocol used to control network access.
Many specific authentication methods work within this
framework.
23
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Setup
Wireless-G Ethernet Bridge
TTLS
TTLS is a mutual authentication method that uses digital certificates. Select TTLS from the EAP Type drop-
down menu. Enter the Login name of your wireless network in the User ID field and the password in the
Password field. Enter the Root Certificate in the field or click the Browse button to browse for it, then upload
it.
• EAP Type - The authentication method that your network uses. Select TTLS from the drop-down menu.
• User ID -Your User ID is the Login name of your wireless network. Enter the Login name of your wireless
network in the User ID field.
• Password - This is the password used for your wireless network. Enter the password in the Password field.
• Root Certificate - Enter the root certificate you have installed to authenticate you on your wireless network or
click the Browse button to browse for it. Click the Upload button to upload the certificate.
Click the Apply button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh button of your web browser. Click the View Log button to view a log.
To save your changes, click the Apply button. Click the Cancel button to cancel your changes. Click the Help
button for additional on-screen information.
Figure 7-10: RADIUS-TTLS
24
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Password
Wireless-G Ethernet Bridge
Password
The Password screen, shown in Figure 7-11, lets you change the Bridge’s Password and restore the factory
default settings.
• Administrative Password - It is strongly recommended that you change the factory default password of the
Bridge from admin to a new password that you create. All users who try to access the Bridge’s Web-based
Utility will be prompted for the Bridge’s Password. The new Password must not exceed 12 characters in
length and must not include any spaces. Enter the new Password a second time to confirm it.
• Restore Factory Defaults - Click the Yes radio button to reset all configuration settings to their default values.
If you do not want to restore the factory defaults, then keep the default setting, No.
To save your changes, click the Apply button. Click the Cancel button to cancel your changes. Click the Help
button for additional on-screen information.
Advanced Settings
Use the Advanced Settings screen, shown in Figure 7-12, to customize advanced wireless settings and clone a
MAC address onto the Bridge.
Wireless
• Transmission Rate - The default setting is Auto. The range is from 1 to 54Mbps.The rate of data transmission
should be set depending on the speed of your wireless network. You can select from a range of transmission
speeds, or you can keep the default setting, Auto, to have the Bridge automatically use the fastest possible
data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection
speed between the Bridge and another wireless-equipped device.
• Authentication Type - The default setting is Auto. The choices are Auto, Open, and Shared. This setting
allows the Bridge to authenticate communication with the wireless devices in your network. With the Shared
key setting, all wireless devices must have the same WEP keys so that the Bridge and the client can
authenticate each other and start transmitting data. With the Open system setting, any device can join a
network without performing any security check. Using the Auto setting, the Bridge will automatically detect Figure 7-12: Advanced Settings Tab
Figure 7-11: Password Tab
IMPORTANT: Any settings you have saved will be
lost if the default settings are restored.
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Advanced Settings
Wireless-G Ethernet Bridge
whether a wireless device uses shared key or open system authentication, and then it will transmit data using
the appropriate authentication type.
• RTS Threshold - This value should remain at its default setting of 2347. The range is 0-2347 bytes. Should
you encounter inconsistent data flow, only minor modifications are recommended. If a network packet is
smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Router sends
Request to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame.
After receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the
right to begin transmission.
• Fragmentation Threshold - This value should remain at its default setting of 2346. The range is 256-2346
bytes. It specifies the maximum size for a packet before data is fragmented into multiple packets. If you
experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the
Fragmentation Threshold too low may result in poor network performance. Only minor modifications of this
value are recommended.
MAC Address
• Cloning Mode - You can clone the MAC address of any network device onto the Bridge. To disable MAC
address cloning, keep the default setting, Disable. To use the MAC cloning feature, select Enable.
If you have enabled MAC cloning, then select Auto if you want to clone the MAC address of the device
currently connected to the Bridge’s LAN port. The Bridge will actively scan for a new MAC address to be
cloned whenever you disconnect and re-connect the Bridge through its LAN port. Select Manual if you want
to specify a MAC address in the Enter MAC Address field. This is useful when the Bridge is connected to
multiple devices through a switch or a hub.
Click the Apply button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh button of your web browser. Click the Cancel button to cancel your changes. Click the Help button for
additional on-screen information.
26
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Status
Wireless-G Ethernet Bridge
Status
The Status screen displayed the Bridge’s current status and settings. All information is read-only.
• Device Name - The name you have assigned to the Bridge is displayed here.
• Firmware Version - The version number of the Bridge’s firmware is displayed here. Firmware updates are
posted at www.linksys.com. Firmware should be upgraded ONLY if you experience problems with the Bridge.
To upgrade the Bridge’s firmware, use the Help screen.
• MAC Address - The MAC Address of the Bridge is displayed here.
LAN Settings
• IP Address - The Bridge’s IP Address is displayed here.
• Subnet Mask - The Bridge’s Subnet Mask is displayed here.
• Gateway - The Gateway address for the Bridge is displayed here.
LAN Statistics
• Ethernet TX - The number of packets transmitted to the Ethernet network is displayed here.
• Ethernet RX - The number of packets received from the Ethernet network is displayed here.
• Wireless TX - The number of packets transmitted to the wireless network is displayed here.
• Wireless RX - The number of packets received from the wireless network is displayed here.
Wireless Settings
• SSID - The Bridge’s SSID is displayed here.
• Network Type - The Bridge’s mode is displayed here.
• Channel - The Bridge’s channel setting is displayed here.
• Security- The status of the Bridge’s security is displayed here.
• TX Rate - The Bridge’s transmission rate is displayed here.
Figure 7-13: Status Tab
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Help
Wireless-G Ethernet Bridge
• Link Quality - The quality of the Bridge’s connection is displayed here.
Click the Refresh button to obtain the most up-to-date settings and statistics. Click the Help button for additional
on-screen information.
Help
The Help screen offers links to all of the help information for the Web-based Utility’s screens and the Bridge’s
online technical support resources (all information is read-only). You can also upgrade the Bridge’s firmware.(See
Figure 7-14.)
• Linksys Website - Click the Linksys Website link to visit Linksys’s website, www.linksys.com.
• Online manual in PDF format - Click the Online manual in PDF format to view this User Guide on-screen. It
is in Adobe Acrobat Portable Document File (.pdf) format, so you will need the free Adobe Acrobat Reader to
view the pdf. If you do not have the Reader, click the Adobe Website link to download it.
• Adobe Website (software for viewing PDF documents) - If you need to download the Adobe Acrobat Reader to
view the User Guide pdf, then click the Adobe Website link.
• Firmware Upgrade - The version number of the Bridge’s firmware is displayed here. Firmware updates are
posted at www.linksys.com. Firmware should be upgraded ONLY if you experience problems with the Bridge.
To upgrade the firmware, follow these instructions:
1. Download the Bridge’s firmware upgrade file from the Linksys website, www.linksys.com. Then extract
the file.
2. On the Help screen, click the Firmware Upgrade button.
3. The screen shown in Figure 7-15 will appear. In the field provided, enter the name of the extracted
firmware upgrade file, or click the Browse button to find this file.
4. After you have selected the appropriate file, click the Upgrade button, and follow the on-screen
instructions.
Figure 7-15: Firmware Upgrade
Figure 7-14: Help Tab
NOTE: If you upgrade the Bridge’s firmware, you
may lose its configuration settings.
28
Appendix A: Troubleshooting
Common Problems and Solutions
Wireless-G Ethernet Bridge
Appendix A: Troubleshooting
This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” This
appendix provides solutions to problems that may occur during the installation and operation of the Wireless-G
Ethernet Bridge. Read the description below to solve your problems. If you can't find an answer here, check the
Linksys website at www.linksys.com.
Common Problems and Solutions
1. I can’t connect to the access point.
Open the Web-based Utility. On the Setup tab, perform the following steps:
• Verify that the operating mode is set to Infrastructure mode.
• Make sure that the SSID is the same as the SSID of the access point.
• On the WEP Encryption screen, make sure that all of the WEP settings are the same as the WEP settings of
the access point.
2. I want to play head-to-head (ad-hoc) gaming with two Xboxes, but they won’t communicate.
Perform the following steps:
• Make sure both Bridges are set to the same SSID, network mode (Ad-Hoc), channel setting, and WEP
settings.
• Verify that the Bridges are set to different IP addresses.
• You need to enable MAC address cloning on the Bridge for each Xbox. Follow these instructions:
1. Open the Web-based Utility for one of the Bridges.
2. Click the Advanced tab.
3. Select Enable from the MAC Address Cloning Mode drop-down menu.
4. Click the Auto radio button.
5. Click the Apply button to save your changes. When you connect the Bridge to its Xbox, the Bridge will
automatically clone the Xbox’s MAC address.
• Repeat steps 1-5 for the other Bridge.
3. I don’t know how to change the Bridge’s IP address.
You have two ways to change the Bridge’s IP address.
• Open the Web-based Utility. On the Setup screen, click the Static IP Address radio button, and change
the IP address there.
• If you encounter problems, power the Bridge off and on again, or push the Reset button. Then try to
change the IP address again.
29
Appendix A: Troubleshooting
Frequently Asked Questions
Wireless-G Ethernet Bridge
4. The Bridge-enabled PC won’t communicate with a wireless-enabled PC or printer.
Perform the following steps:
• Check that the wireless-enabled PC or printer is on the same wireless network as the PC using the Bridge.
• Make sure that the SSID and network mode are the same for all devices connected to the same wireless
network.
• If the wireless LAN settings are okay, make sure that all the devices are on the same IP network.
5. The Web-based Utility won’t open.
Make sure you correctly entered the Bridge’s IP address in the Address field of your web browser. If you are
not sure what the Bridge’s IP address is, then run the Setup Wizard. Follow the on-screen instructions until
you see a screen that lists all the Wireless-G Ethernet Bridges on your network. Select the Bridge you want to
access, and its IP address will appear in the Status box. Enter this IP address in your web browser’s Address
field. For details, refer to “Chapter 5: Setting Up the Wireless-G Ethernet Bridge.”
6. The Web-based Utility does not recognize my password.
The password is case-sensitive. Make sure that you are using the correct case(s) when entering the
password. If you forget your password, you can push the Bridge’s Reset button. This will reset the password
to the default setting; however, all other Bridge settings will be reset to the factory defaults as well. To use
the default setting, enter admin in the Password field.
7. After I make changes through the Web-based Utility, the new settings aren’t displayed on-screen.
Click the Refresh button of your web browser. If the new settings aren’t displayed, then unplug the power
adapter from the Bridge. Plug the power adapter back in, and then click the Refresh button again.
Frequently Asked Questions
What is the IEEE 802.11g standard?
It is one of the IEEE standards for wireless networks. The 802.11g standard allows wireless networking hardware
from different manufacturers to communicate, provided that the hardware complies with the 802.11g standard.
The 802.11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2.4GHz. It is
backward compatible with 802.11b devices.
What is the IEEE 802.11b standard?
It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware
from different manufacturers to communicate, provided that the hardware complies with the 802.11b standard.
The 802.11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.
30
Appendix A: Troubleshooting
Frequently Asked Questions
Wireless-G Ethernet Bridge
Can I run an application from a remote computer over the wireless network?
This will depend on whether or not the application is designed to be used over a network. Consult the
application’s user guide to determine if it supports operation over a network.
Can I play multiplayer games with other users of the wireless network?
Yes, as long as the game supports multiple players over a LAN. Refer to the game’s user guide for more
information.
What is ad-hoc mode?
When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to
communicate directly with each other. The ad-hoc wireless network will not communicate with any wired
network.
What is infrastructure mode?
When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with
a wired network through a wireless access point.
What is roaming?
Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout
an area greater than that covered by a single wireless network access point. Before using the roaming function,
the workstation must make sure that it is the same channel number as the wireless network access point of the
dedicated coverage area.
To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each
node and wireless network access point, for example, must always acknowledge receipt of each message. Each
node must maintain contact with the wireless network even when not actually transmitting data. Achieving these
functions simultaneously requires a dynamic RF networking technology that links wireless network access points
and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system.
First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried
by each wireless network access point and the distance of each wireless network access point to the wired
backbone. Based on that information, the node next selects the right wireless network access point and registers
its address. Communications between end node and host computer can then be transmitted up and down the
backbone.
As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in
touch with the original wireless network access point or whether it should seek a new one. When a node no
longer receives acknowledgment from its original wireless network access point, it undertakes a new search.
Upon finding a new wireless network access point, it then re-registers, and the communication process
continues.
31
Appendix A: Troubleshooting
Frequently Asked Questions
Wireless-G Ethernet Bridge
What is ISM band?
The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM
(Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available
worldwide. This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in
the hands of users around the globe.
What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in
reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for
reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband
transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that
the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to
the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives,
Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).
What is DSSS? What is FHSS? And what are their differences?
Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that
is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical
channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct Sequence Spread
Spectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip
(or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if
one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can
recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low
power wideband noise and is rejected (ignored) by most narrowband receivers.
Would the information be intercepted while transmitting on air?
Linksys products feature two-fold protection in security. On the hardware side, as with Direct Sequence Spread
Spectrum technology, it has the inherent security feature of scrambling. On the software side, Linksys products
offer the encryption function (WEP) to enhance security and access control. Users can set it up depending upon
their needs.
What is WEP?
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40/64 bit shared key algorithm, as
described in the IEEE 802.11 standard.
32
Appendix B: Wireless Security
Security Precautions
Wireless-G Ethernet Bridge
Appendix B: Wireless Security
Linksys wants to make wireless networking as safe and easy for you as possible. The current generation of
Linksys products provide several network security features, but they require specific action on your part for
implementation. So, keep the following in mind whenever you are setting up or using your wireless network.
Security Precautions
The following is a complete list of security precautions to take (at least steps 1 through 5 should be followed):
1. Change the default SSID.
2. Disable SSID Broadcast.
3. Change the default password for the Administrator account.
4. Enable MAC Address Filtering.
5. Change the SSID periodically.
6. Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce
your network performance.
7. Change the WEP encryption keys periodically.
For information on implementing these security features, refer to “Chapter 7: Using the Wireless-G Ethernet
Bridge Web-based Utility Setup.”
Security Threats Facing Wireless Networks
Wireless networks are easy to find. Hackers know that in order to join a wireless network, wireless networking
products first listen for “beacon messages”. These messages can be easily decrypted and contain much of the
network’s information, such as the network’s SSID (Service Set Identifier). Here are the steps you can take:
Change the administrator’s password regularly. With every wireless networking device you use, keep in mind
that network settings (SSID, WEP keys, etc.) are stored in its firmware. Your network administrator is the only
person who can change network settings. If a hacker gets a hold of the administrator’s password, he, too, can
change those settings. So, make it harder for a hacker to get that information. Change the administrator’s
password regularly.
Note: Some of these security features are
available only through the network router or
access point. Refer to the router or access
point’s documentation for more information.
33
Appendix B: Wireless Security
Security Threats Facing Wireless Networks
Wireless-G Ethernet Bridge
SSID. There are several things to keep in mind about the SSID:
1. Disable Broadcast
2. Make it unique
3. Change it often
Most wireless networking devices will give you the option of broadcasting the SSID. While this option may be
more convenient, it allows anyone to log into your wireless network. This includes hackers. So, don’t broadcast
the SSID.
Wireless networking products come with a default SSID set by the factory. (The Linksys default SSID is “linksys”.)
Hackers know these defaults and can check these against your network. Change your SSID to something unique
and not something related to your company or the networking products you use.
Change your SSID regularly so that any hackers who have gained access to your wireless network will have to
start from the beginning in trying to break in.
MAC Addresses. Enable MAC Address filtering. MAC Address filtering will allow you to provide access to only
those wireless nodes with certain MAC Addresses. This makes it harder for a hacker to access your network with
a random MAC Address.
WEP Encryption. Wired Equivalent Privacy (WEP) is often looked upon as a cure-all for wireless security
concerns. This is overstating WEP’s ability. Again, this can only provide enough security to make a hacker’s job
more difficult.
There are several ways that WEP can be maximized:
1. Use the highest level of encryption possible
2. Use “Shared Key” authentication
3. Change your WEP key regularly
WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. Two modes are
available: Pre-Shared Key and RADIUS. Pre-Shared Key gives you one encryption method: TKIP (Temporal Key
Integrity Protocol), which utilizes a stronger encryption method and incorporates Message Integrity Code (MIC) to
provide protection against hackers.RADIUS (Remote Authentication Dial-In User Service) utilizes a RADIUS server
for authentication and the use of dynamic TKIP or WEP.
Important: Always remember that each
device in your wireless network MUST use
the same encryption method and encryption
key or your wireless network will not function
properly.
34
Appendix B: Wireless Security
Security Threats Facing Wireless Networks
Wireless-G Ethernet Bridge
WPA Pre-Shared Key. If you do not have a RADIUS server, Select the type of algorithm, TKIP, and enter a
password in the Pre-Shared key field of 8-64 characters, and enter a Group Key Renewal period time between
0 and 99,999 seconds, which instructs the Router or other device how often it should change the encryption
keys.
RADIUS. WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS server is
connected to the Router or other device.) First, enter the RADIUS server’s IP Address and port number, along
with a key shared between the device and the server. Then, select a WEP key and a level of WEP encryption,
and either generate a WEP key through the Passphrase or enter the WEP key manually.
Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting
sensitive data over your network, encryption should be used.
These security recommendations should help keep your mind at ease while you are enjoying the most flexible
and convenient technology Linksys has to offer.
35
Appendix C: Upgrading Firmware
Wireless-G Ethernet Bridge
Appendix C: Upgrading Firmware
You can use the Bridge’s Web-based Utility to upgrade the firmware; however, firmware should be upgraded
ONLY if you experience problems with the Bridge.
To upgrade the Bridge’s firmware, follow these instructions:
1. Download the Bridge’s firmware upgrade file from the Linksys website, www.linksys.com.
2. Extract the file on your computer.
3. Open the Bridge’s Web-based Utility, and click the Help tab.
4. On the Help screen, click the Firmware Upgrade button.
5. The screen shown in Figure C-1 will appear. In the field provided, enter the name of the extracted firmware
upgrade file, or click the Browse button to find this file.
6. After you have selected the appropriate file, click the Upgrade button, and follow the on-screen instructions.
NOTE: If you upgrade the Bridge’s firmware, you
may lose its configuration settings.
Figure C-1: Firmware Upgrade
36
Appendix D: Windows Help
Wireless-G Ethernet Bridge
Appendix D: Windows Help
Almost all Linksys wireless products require Microsoft Windows. Windows is the most used operating system in
the world and comes with many features that help make networking easier. These features can be accessed
through Windows Help and are described in this appendix.
TCP/IP
Before a computer can communicate with the Bridge, TCP/IP must be enabled. TCP/IP is a set of instructions, or
protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will
not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete
instructions on enabling TCP/IP.
Shared Resources
If you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on
utilizing shared resources.
Network Neighborhood/My Network Places
Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the
version of Windows you're running). Windows Help provides complete instructions on adding PCs to your
network.
37
Appendix E: Glossary
Wireless-G Ethernet Bridge
Appendix E: Glossary
802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an
operating frequency of 5GHz.
802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an
operating frequency of 2.4GHz.
802.11g - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an
operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.
Access Point - Device that allows wireless-equipped computers and other devices to communicate with a wired
network. Also used to expand the range of a wireless network.
Adapter - This is a device that adds network functionality to your PC.
Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of
an access point.
Backbone - The part of a network that connects most of the systems and networks together, and handles the
most data.
Bandwidth - The transmission capacity of a given device or network.
Beacon Interval - The frequency interval of the beacon, which is a packet broadcast by a router to synchronize a
wireless network.
Bit - A binary digit.
Boot - To start a device and cause it to start executing instructions.
Bridge - A device that connects two different kinds of local networks, such as a wireless network to a wired
Ethernet network.
Broadband - An always-on, fast Internet connection.
Browser - A browser is an application program that provides a way to look at and interact with all the
information on the World Wide Web.
38
Appendix E: Glossary
Wireless-G Ethernet Bridge
Buffer - A block of memory that temporarily holds data to be worked on later when a device is currently too busy
to accept the data.
Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the
Internet.
CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - A method of data transfer that is used to prevent
data loss in a network.
CTS (Clear To Send) - A signal sent by a device to indicate that it is ready to receive data.
Daisy Chain - A method used to connect devices in a series, one after the other.
Database - A collection of data that is organized so that its contents can easily be accessed, managed, and
updated.
DDNS (Dynamic Domain Name System) - The capability of having a website, FTP, or e-mail server-with a
dynamic IP address-use a fixed domain name.
Default Gateway - A device that forwards Internet traffic from your local area network.
DHCP (Dynamic Host Configuration Protocol) - A protocol that lets one device on a local network, known as a
DHCP server, assign temporary IP addresses to the other network devices, typically computers.
DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be “seen” from
the Internet.
DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP
addresses.
Domain - A specific name for a network of computers.
Download - To receive a file transmitted over a network.
DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.
DSSS (Direct-Sequence Spread-Spectrum) - A type of radio transmission technology that includes a redundant
bit pattern to lessen the probability of data lost during transmission. Used in 802.11b networking.
DTIM (Delivery Traffic Indication Message) - A message included in data packets that can increase wireless
efficiency.
39
Appendix E: Glossary
Wireless-G Ethernet Bridge
Dynamic IP Address - A temporary IP address assigned by a DHCP server.
Encryption - Encoding data to prevent it from being read by unauthorized people.
Ethernet - An IEEE standard network protocol that specifies how data is placed on and retrieved from a common
transmission medium.
Finger - A program that tells you the name associated with an e-mail address.
Firewall - Security measures that protect the resources of a local network from intruders.
Firmware - 1. In network devices, the programming that runs the device. 2. Programming loaded into read-only
memory (ROM) or programmable read-only memory (PROM) that cannot be altered by end-users.
Fragmentation - Breaking a packet into smaller units when transmitting over a network medium that cannot
support the original size of the packet.
FTP (File Transfer Protocol) - A standard protocol for sending files between computers over a TCP/IP network and
the Internet.
Full Duplex - The ability of a networking device to receive and transmit data simultaneously.
Gateway - A system that interconnects networks.
Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a
time.
Hardware - The physical aspect of computers, telecommunications, and other information technology devices.
HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World
Wide Web.
IEEE (The Institute of Electrical and Electronics Engineers) - An independent institute that develops networking
standards.
Infrastructure - Currently installed computing and networking equipment.
Infrastructure Mode - Configuration in which a wireless network is bridged to a wired network via an access
point.
IP (Internet Protocol) - A protocol used to send data over a network.
IP Address - The address used to identify a computer or device on a network.
40
Appendix E: Glossary
Wireless-G Ethernet Bridge
IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device.
IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer.
ISM band - Radio band used in wireless networking transmissions.
ISP (Internet Service Provider) - A company that provides access to the Internet.
LAN (Local Area Network) - The computers and networking products that make up the network in your home or
office.
MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking
device.
Mbps (Megabits Per Second) - One million bits per second; a unit of measurement for data transmission.
Multicasting - Sending data to a group of destinations at once.
NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a
different IP address for the Internet.
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or
transmission between users.
NNTP (Network News Transfer Protocol) - The protocol used to connect to Usenet groups on the Internet.
Node - A network junction or connection point, typically a computer or work station.
OFDM (Orthogonal Frequency Division Multiplexing) - A type of modulation technology that separates the data
stream into a number of lower-speed data streams, which are then transmitted in parallel. Used in 802.11a,
802.11g, and powerline networking.
Packet - A unit of data sent over a network.
Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically
generating the WEP encryption keys for Linksys products.
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.
POP3 (Post Office Protocol 3) - A standard protocol used to retrieve e-mail stored on a mail server.
Port - 1. The connection point on a computer or networking device used for plugging in a cable or an adapter. 2.
The virtual connection point through which a computer uses a specific application on a server.
41
Appendix E: Glossary
Wireless-G Ethernet Bridge
PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication
(username and password) in addition to data transport.
PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be
tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe.
Preamble - Part of the wireless signal that synchronizes network traffic.
RJ-45 (Registered Jack-45) - An Ethernet connector that holds up to eight wires.
Roaming - The ability to take a wireless device from one access point's range to another without losing the
connection.
Router - A networking device that connects multiple networks together, such as a local network and the Internet.
RTS (Request To Send) - A packet sent when a computer has data to transmit. The computer will wait for a CTS
(Clear To Send) message before sending data.
Server - Any computer whose function in a network is to provide user access to files, printing, communications,
and other services.
SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.
SNMP (Simple Network Management Protocol) - A widely used network monitoring and control protocol.
Software - Instructions for the computer. A series of instructions that performs a particular task is called a
“program”.
Spread Spectrum - Wideband radio frequency technique used for more reliable and secure data transmission.
SSID (Service Set IDentifier) - Your wireless network's name.
Static IP Address - A fixed address assigned to a computer or device that is connected to a network.
Static Routing - Forwarding data in a network via a fixed path.
Subnet Mask - An address code that determines the size of the network.
Switch - 1. Device that is the central point of connection for computers and other devices in a network, so data
can be shared at full transmission speeds. 2. A device for making, breaking, or changing the connections in an
electrical circuit.
42
Appendix E: Glossary
Wireless-G Ethernet Bridge
TCP/IP (Transmission Control Protocol/Internet Protocol) - A network protocol for transmitting data that requires
acknowledgement from the recipient of data sent.
Telnet - A user command and TCP/IP protocol used for accessing remote PCs.
TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that uses UDP and has no directory or
password capability.
Throughput - The amount of data moved successfully from one node to another in a given time period.
Topology - The physical layout of a network.
TX Rate - Transmission Rate.
UDP (User Datagram Protocol) - A network protocol for transmitting data that does not require acknowledgement
from the recipient of the data that is sent.
Upgrade - To replace existing software or firmware with a newer version.
Upload - To transmit a file over a network.
URL (Uniform Resource Locator) - The address of a file located on the Internet.
VPN (Virtual Private Network) - A security measure to protect data as it leaves one network and goes to another
over the Internet.
WAN (Wide Area Network) - The Internet.
WEP (Wired Equivalent Privacy) - A method of encrypting data transmitted on a wireless network for greater
security.
WINIPCFG - A Windows 98 and Millennium utility that displays the IP address for a particular networking device.
WLAN (Wireless Local Area Network) - A group of computers and associated devices that communicate with
each other wirelessly.
43
Appendix F: Specifications
Wireless-G Ethernet Bridge
Appendix F: Specifications
Model WET54G v.3
Standards IEEE 802.11g, IEEE 802.11b, IEEE 802.3, IEEE 802.3u
Ports One 10/100 Auto-Cross Over (MDI/MDI-X) Port, Power Port
Buttons Reset Button
Cabling Type Category 5 or better
LEDs Power, Ethernet, Wireless-G
Transmit Power 16 ± 1 dBm @ 11Mbps CCK
12 ± 1 dBm @ 54Mbps OFDM
Security Feature WEP Encryption, WPA, RADIUS
WEP Key Bits 64/128-bit
Protocols 802.11b: CCK (11Mbps), CCK (5.5Mbps), DQPSK (2Mbps),
DBPSK (1Mbps)
802.11g: OFDM (54Mbps)
Dimensions 4.96" x 1.06" x 4.21"
(126 mm x 27 mm x 107 mm)
Unit Weight 8.50 oz. (0.24 kg)
Power 5V DC
Certifications FCC, CE
Operating Temp. 32°F to 104°F (0°C to 40°C)
44
Appendix F: Specifications
Wireless-G Ethernet Bridge
Storage Temp. -4°F to 158°F (-20°C to 70°C)
Operating Humidity 10% to 85%, Non-Condensing
Storage Humidity 5% to 90%, Non-Condensing
Warranty 3 Year Limited
45
Appendix G: Warranty Information
Wireless-G Ethernet Bridge
Appendix G: Warranty Information
LIMITED WARRANTY
Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially
free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under
this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any
rebates. This limited warranty extends only to the original purchaser.
If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return
Authorization Number, if applicable. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. If You are
requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a
copy of your original proof of purchase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. You
are responsible for shipping defective Products to Linksys. Linksys pays for UPS Ground shipping from Linksys back to You
only. Customers located outside of the United States of America and Canada are responsible for all shipping and handling
charges.
ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED
TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You. This warranty gives
You specific legal rights, and You may also have other rights which vary by jurisdiction.
This warranty does not apply if the Product (a) has been altered, except by Linksys, (b) has not been installed, operated,
repaired, or maintained in accordance with instructions supplied by Linksys, or (c) has been subjected to abnormal
physical or electrical stress, misuse, negligence, or accident. In addition, due to the continual development of new
techniques for intruding upon and attacking networks, Linksys does not warrant that the Product will be free of
vulnerability to intrusion or attack.
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR
PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY
OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT
(INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT
WILL LINKSYS’ LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even
if any warranty or remedy provided under this Agreement fails of its essential purpose. Some jurisdictions do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to You.
Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.
46
Appendix H: Regulatory Information
Wireless-G Ethernet Bridge
Appendix H: Regulatory Information
FCC STATEMENT
This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used according to the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which is found by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment or devices
Connect the equipment to an outlet other than the receiver's
Consult a dealer or an experienced radio/TV technician for assistance
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator and your body.
INDUSTRY CANADA (CANADA)
This device complies with Canadian ICES-003 and RSS210 rules.
Cet appareil est conforme aux normes NMB-003 et RSS210 d'Industry Canada.
The use of this device in a system operating either partially or completely outdoors may require the user to obtain
a license for the system according to the Canadian regulations.
EC DECLARATION OF CONFORMITY (EUROPE)
Linksys declares that this product conforms to the specifications listed below, following the provisions of the
European R&TTE directive 1999/5/EC:
EN 301 489-1, 301 489-17 General EMC requirements for Radio equipment.
EN 609 50 Safety
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) 
This device may not cause harmful interference, and (2) this device must accept any interference received, 
including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance 
could void the user's authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Linksys declares that WET54G V3 ( FCC ID: Q87-WET54GV3 ) is limited in CH1~CH11 for 2.4 GHz by 
specified firmware controlled in U.S.A.
This device has been designed to operate with an antenna having 
a maximum gain of 2 dBi. Antenna having a higher gain is strictly 
prohibited per regulations of Industry Canada. The required 
antenna impedance is 50 ohms.
Règlement d’Industry Canada 
Les conditions de fonctionnement sont sujettes à deux conditions:
1) Ce périphérique ne doit pas causer d’interférence et
2) Ce périphérique doit accepter toute interférence, y compris les 
interférences pouvant perturber le bon fonctionnement de ce 
périphérique.
47
Appendix H: Regulatory Information
Wireless-G Ethernet Bridge
EN 300-328-1, EN 300-328-2 Technical requirements for Radio equipment.
Caution: This equipment is intended to be used in all EU and EFTA countries. Outdoor use may be restricted to
certain frequencies and/or may require a license for operation. Contact local Authority for procedure to follow.
Note: Combinations of power levels and antennas resulting in a radiated power level of above 100 mW equivalent
isotropic radiated power (EIRP) are considered as not compliant with the above mentioned directive and are not
allowed for use within the European community and countries that have adopted the European R&TTE directive
1999/5/EC.
For more details on legal combinations of power levels and antennas, contact Linksys Corporate Compliance.
Linksys vakuuttaa täten että dieses produkt tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja
sitä koskevien näiden direktiivien muiden ehtojen mukainen.
Linksys Group déclare que le produit est conforme aux conditions essentielles et aux dispositions relatives à la
directive 1999/5/EC.
Belgique:
Dans le cas d'une utilisation privée, à l'extérieur d'un bâtiment, au-dessus d'un espace public, aucun
enregistrement n'est nécessaire pour une distance de moins de 300m. Pour une distance supérieure à 300m un
enregistrement auprès de l'IBPT est requise. Pour une utilisation publique à l'extérieur de bâtiments, une licence
de l'IBPT est requise. Pour les enregistrements et licences, veuillez contacter l'IBPT.
France:
2.4 GHz Bande : les canaux 10, 11, 12, 13 (2457, 2462, 2467, et 2472 MHz respectivement) sont complétement
libres d'utilisation en France (en utilisation intérieur). Pour ce qui est des autres canaux, ils peuvent être soumis à
autorisation selon le départment. L'utilisation en extérieur est soumis à autorisation préalable et très restreint.
Vous pouvez contacter l'Autorité de Régulation des Télécommunications (http://www.art-telecom.fr) pour de plus
amples renseignements.
SAFETY NOTICES
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 swimming pool.
Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.
48
Appendix I: Contact Information
Wireless-G Ethernet Bridge
Appendix I: Contact Information
Need to contact Linksys?
Visit us online for information on the latest products and updates
to your existing products at: http://www.linksys.com or
ftp.linksys.com
Can't find information about a product you want to buy
on the web? Do you want to know more about networking
with Linksys products? Give our advice line a call at: 800-546-5797 (LINKSYS)
Or fax your request in to: 949-823-3002
If you experience problems with any Linksys product,
you can call us at: 800-326-7114
Don't wish to call? You can e-mail us at: support@linksys.com
If any Linksys product proves defective during its warranty period,
you can call the Linksys Return Merchandise Authorization
department for obtaining a Return Authorization Number at: 949-823-3000
(Details on Warranty and RMA issues can be found in the Warranty
Information section in this Guide.)

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