Linksys WET54GS5 - Wireless-G EN Bridge User manual

A Division of Cisco Systems, Inc.
®
Model No.
Ethernet Bridge
Wireless-G
WET54GS5
User Guide
WIRELESS
GHz
2.4
802.11g
with 5-Port Switch

Wireless-G Ethernet Bridge with 5-Port Switch
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 © 2004 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
WET54GS5-UG-40322NC BW

Wireless-G Ethernet Bridge with 5-Port Switch
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 with 5-Port Switch 6
The Back Panel 6
The Front Panel 7
The Side Panel 9
Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup 10
Chapter 5: Setting Up the Wireless-G Ethernet Bridge 12
Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use 18
Connection to a Network Device 18
Wall Mount Placement Option 18
Chapter 7: Using the Wireless-G Ethernet Bridge
Web-based Utility 19
Overview 19
Starting the Web-based Utility 19
Setup 20
Password 29
Wireless 30
Port Mirroring 38
Access List 39
Wireless Status 40
SNMP 41
Help 42
Appendix A: Troubleshooting 43
Common Problems and Solutions 43
Frequently Asked Questions 44
Appendix B: Wireless Security 47

Wireless-G Ethernet Bridge with 5-Port Switch
Security Precautions 47
Security Threats Facing Wireless Networks 47
Appendix C: Upgrading Firmware 50
Appendix D: Windows Help 51
Appendix E: Glossary 52
Appendix F: Specifications 59
Appendix G: Warranty Information 61
Appendix H: Regulatory Information 62
FCC Statement 62
Industry Canada (Canada) 62
Appendix I: Contact Information 63

Wireless-G Ethernet Bridge with 5-Port Switch
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 3-3: Side Panel 8
Figure 4-1: Connect to the Network 10
Figure 4-2: Connect the Power 11
Figure 5-1: Welcome 12
Figure 5-2: Connection 12
Figure 5-3: List of Bridges 13
Figure 5-4: Password 13
Figure 5-5: Mode Settings 14
Figure 5-6: Wireless Settings 15
Figure 5-7: IP Settings 15
Figure 5-8: Security Settings 16
Figure 5-9: Security Settings 16
Figure 5-10: Confirmation 17
Figure 5-11: Congratulations 17
Figure 6-1: Wall Placement 18
Figure 7-1: Password Screen 19
Figure 7-2: Setup Tab 20
Figure 7-3: 802.1x Screen 20
Figure 7-4: Site Survey 21
Figure 7-5: WEP 22
Figure 7-6: RADIUS-MD5 23
Figure 7-7: RADIUS-TLS 24
Figure 7-8: RADIUS-TTLS 25
Figure 7-9: WPA RADIUS-TLS 26

Wireless-G Ethernet Bridge with 5-Port Switch
Figure 7-10: WPA RADIUS-TTLS 27
Figure 7-11: WPA Pre-Shared Key 28
Figure 7-12: Log Table 28
Figure 7-13: Password Tab 29
Figure 7-14: Wireless Tab 30
Figure 7-15: Spanning Tree Protocol Tab 31
Figure 7-16: QOS Tab 32
Figure 7-17: Switch Table Tab 33
Figure 7-18: VLAN Tab 34
Figure 7-19: RMON Statistics Tab 36
Figure 7-20: Port Mirroring Tab 38
Figure 7-21: Access List Tab 39
Figure 7-22: Wireless Status Tab 40
Figure 7-23: SNMP Tab 41
Figure 7-24: Help Tab 42
Figure 7-25: Firmware Upgrade 42
Figure C-1: Firmware Upgrade 50

1
Chapter 1: Introduction
Welcome
Wireless-G Ethernet Bridge with 5-Port Switch
Chapter 1: Introduction
Welcome
Thank you for choosing the Wireless-G Ethernet Bridge with 5-port Switch. The Wireless-G Ethernet Bridge with
5-port Switch can make any wired Ethernet-equipped device a part of your wireless 802.11b or 802.11g network.
At home, use the Bridge to connect game consoles 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.
The Wireless-G Ethernet Bridge with 5-port Switch can be used for connecting remote areas together. You can
connect up to 5 Ethernet-equipped computers directly to the high-speed 10/100 switch ports on the Wireless-G
Ethernet Bridge. Put another one (or a Wireless-G Access Point, or our one-port Wireless-G Ethernet Bridge) at
the other end, and those 5 computers are connected to your main network.
And those 5 switch ports can support devices other than PCs. Since there are no drivers to load, you can make
any wired-Ethernet device, such as a printer or network attached storage device, into a wireless network device.
All five ports are auto-speed negotiating, and have automatic MDI/MDI-X crossover detection, so you don't have
to worry about the cable type. To protect your data and privacy, all wireless transmissions can be secured with
up to 128-bit WEP encryption, Pre-Shared Key, or RADIUS.
Use the instructions in this Guide to help you set up and connect the Wireless-G Ethernet Bridge with 5-port
Switch. These instructions should be all you need to get the most out of the Wireless-G Ethernet Bridge with
5-port Switch.
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 with 5-Port Switch
What’s in this Guide?
This user guide covers the steps for setting up and using the Wireless-G Ethernet Bridge with 5-Port Switch.
• 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 with 5-Port Switch
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 with 5-Port Switch
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 with 5-Port Switch
• 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 with 5-Port Switch
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 with 5-Port Switch
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 Bridge 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 with 5-Port
Switch.
Figure 2-3: Network Using Wireless Bridging
Figure 2-2: Ad-Hoc Network

6
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Port Switch
The Back Panel
Wireless-G Ethernet Bridge with 5-Port Switch
Chapter 3: Getting to Know the Wireless-G Ethernet
Bridge with 5-Port Switch
The Back Panel
All network connections to the Bridge are made through the ports on its back panel, shown in Figure 3-1. The
reset button is also located here.
Reset When pressed, the Reset button resets the Bridge to its factory default settings.
LAN (1-5) The LAN ports are where you will connect the Ethernet network cables.
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

7
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Port Switch
The Front Panel
Wireless-G Ethernet Bridge with 5-Port Switch
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.
Diag Green. The Ethernet LED will light up when there is an error wih the Bridge.
Wireless-G LINK 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.
Wireless-G ACT 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.
LAN 1-5 Green. The LAN LED will be lit steadily when the Bridge is connected to the wired network. The
LED will flash when there is wired network traffic.
Figure 3-2: Front Panel

8
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Port Switch
The Front Panel
Wireless-G Ethernet Bridge with 5-Port Switch
Figure 3-3: Side 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.

9
Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Port Switch
The Side Panel
Wireless-G Ethernet Bridge with 5-Port Switch
The Side Panel
The Power port is on the side panel. (See Figure 3-3.)
Power The Power port is where you will connect the power adapter.

10
Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup
Wireless-G Ethernet Bridge with 5-Port Switch
Chapter 4: Connecting the Wireless-G Ethernet Bridge
for Setup
1. Attach the Bridge’s antenna.
2. Plug the included Ethernet network cable into one of the five LAN ports 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.
Figure 4-1: Connect to the Network

11
Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup
Wireless-G Ethernet Bridge with 5-Port Switch
4. Plug the supplied power cable into the Power port on the side 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 4-2: Connect the Power

12
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge with 5-Port Switch
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.

13
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge with 5-Port Switch
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.
Figure 5-4: Password
Figure 5-3: List of Bridges

14
Chapter 5: Setting Up the Wireless-G Ethernet Bridge
Wireless-G Ethernet Bridge with 5-Port Switch
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 5-5: Mode Settings