Cisco WRE54G Manuale utente
A Division of Cisco Systems, Inc.
®
Model No.
Range Expander
Wireless-G
WRE54G
User Guide
WIRELESS
GHz
2.4
802.11g
Wireless-G Range Expander
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 User Guide
The user guide to the Wireless-G Range Expander has been designed to make understanding networking withthe
Range Expander easier than ever. Look for the following items when reading this User 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.
This exclamation point means there is a caution or
warning and is something that could damage your
property or the Range Expander.
word: definition.
This checkmark means there is a note of interest and
is something you should pay special attention to while
using the Range Expander.
This question mark provides you with a reminder about
something you might need to do while using the Range Expander.
Figure 0-1: Sample Figure Description
WRE54G_V2-UG-50114NC JL
WARNING: This product contains chemicals, including lead, known
to the State of California to cause cancer, and birth defects or other
reproductive harm. Wash hands after handling.
Wireless-G Range Expander
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this User Guide? 2
Chapter 2: Planning Your Wireless Network 4
Network Topology 4
Roaming 4
Network Layout 5
Chapter 3: Getting to Know the Wireless-G Range Expander 6
The Front Panel 6
The Side Panel 6
The Recess for the Power Plate 7
Chapter 4: Connecting the Wireless-G Range Expander 8
Overview 8
Connection to a Wired Network for Setup 8
Connection to a Wireless Network for Setup 9
Connection for Auto Configuration 9
Chapter 5: Setting Up the Wireless-G Range Expander 10
Overview 10
Running the Setup Wizard 10
Moving the Range Expander 16
Chapter 6: Configuring the Wireless-G Range Expander 17
Overview 17
Accessing the Web-based Utility 17
The Setup Tab 18
Appendix A: Troubleshooting 23
Common Problems and Solutions 23
Frequently Asked Questions 23
Appendix B: Wireless Security 27
Security Precautions 27
Security Threats Facing Wireless Networks 27
Appendix C: Upgrading Firmware 30
Wireless-G Range Expander
Appendix D: Windows Help 31
Appendix E: Glossary 32
Appendix F: Specifications 36
Appendix G: Warranty Information 37
Appendix H: Regulatory Information 38
Appendix I: Contact Information 40
Wireless-G Range Expander
List of Figures
Figure 3-1: Front Panel 6
Figure 3-1: Front Panel with Ethernet Network Cable Connected 6
Figure 3-2: Recess for the Power Plate 7
Figure 4-1: Connecting the Ethernet Network Cable 8
Figure 4-2: Using the Power Plate with Cord 8
Figure 4-3: Using the Power Plate with Plug 8
Figure 4-4: Using the Power Plate with Cord 9
Figure 4-5: Using the Power Plate with Plug 9
Figure 5-1: Setup Wizard’s Welcome Screen 10
Figure 5-2: Check Your Wireless Network 10
Figure 5-3: Confirm Wireless Network Settings 11
Figure 5-4: Wireless Network Not Found 11
Figure 5-5: Choose the Access Point 11
Figure 5-6: Configure Wireless Settings Manually 11
Figure 5-7: WEP Security Settings 12
Figure 5-8: WPA Security Settings 12
Figure 5-9: Choose the Range Expander 13
Figure 5-10: Enter the Password 13
Figure 5-11: Configure Network Address Settings 14
Figure 5-12: MAC Address of Access Point or Wireless Router
(WRE54G v1 Only) 14
Figure 5-13: Confirmation Screen 15
Figure 5-14: Congratulations Screen 15
Figure 5-15: Using the Power Plate with Cord 16
Figure 5-16: Using the Power Plate with Plug 16
Figure 6-1: Login Screen 17
Figure 6-2: Setup Tab - Basic Setup 18
Figure 6-3: WPA Security 19
Wireless-G Range Expander
Figure 6-4: WEP Security 19
Figure 6-5: Setup Tab - Password 21
Figure 6-6: File Download 21
Figure 6-7: Setup Tab - Help 22
Figure 6-8: Firmware Upgrade 22
Figure C-1: Upgrade Firmware 30
1
Chapter 1: Introduction
Welcome
Wireless-G Range Expander
Chapter 1: Introduction
Welcome
Thank you for choosing the Wireless-G Range Expander. This Range Expander will allow you to expand your
network beyond the range of your current access point or wireless router.
How does the Range Expander do this? Once on your network, the Range Expander repeats the signal to all
devices within its range. By placing the Range Expander at the furthest edge of your access point or wireless
router’s signal, it could conceivably double the area of your network.
But what does all of this mean?
Networks are useful tools for sharing computer resources. You can access one printer from different computers
and access data located on another computer's hard drive. Networks are even used for playing multiplayer video
games. So, networks are not only useful in homes and offices, they can also be fun.
PCs equipped with wireless cards and adapters can communicate without cumbersome cables. By sharing the
same wireless settings, within their transmission radius, they form a wireless network. While access points and
wireless routers bridge wireless networks and wired networks, the Range Expander can then take that signal for
networks that use the 802.11b and 802.11g standards and extend it beyond its current range.
Use the instructions in this Guide to help you connect the Range Expander, set it up, and configure it to expand
the range of your Wireless-G and Wireless-B networks. These instructions should be all you need to get the most
out of the Range Expander. 802.11g:anIEEEwireless networkingstandardthat specifies
a maximum data transfer rate of 54Mbps, an operating
frequency of 2.4GHz, and backward compatibility with
802.11b devices.
802.11b: an IEEE wireless networking standard that
specifies a maximum data transfer rate of 11Mbps and an
operating frequency of 2.4GHz.
access point: a 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: a device that adds network functionality to your PC.
network: a series of computers or devices connected for the
purpose of data sharing, storage, and/or transmission
between users.
router: a networking device that connects multiple networks
together.
2
Chapter 1: Introduction
What’s in this User Guide?
Wireless-G Range Expander
What’s in this User Guide?
This user guide covers the steps for setting up and using the Wireless-G Range Expander.
• Chapter 1: Introduction
This chapter describes the Range Expander’s applications and this User Guide.
• Chapter 2: Planning Your Wireless Network
This chapter discusses a few of the basics about wireless networking.
• Chapter 3: Getting to Know the Wireless-G Range Expander
This chapter describes the physical features of the Range Expander.
• Chapter 4: Connecting the Wireless-G Range Expander
This chapter describes the steps for connecting the Range Expander to your wired or wireless network.
• Chapter 5: Setting up the Wireless-G Range Expander
This chapter instructs you on how to use the Range Expander’s Setup Wizard and configure the Range
Expander.
• Chapter 6: Configuring the Wireless-G Range Expander
This chapter shows you how to configure the Range Expander using the Web Utility.
• Appendix A: Troubleshooting
This appendix describes some potential problems and solutions, as well as frequently asked questions,
regarding installation and use of the Range Expander.
• Appendix B: Wireless Security
This appendix discusses security issues regarding wireless networking and measures you can take to help
protect your wireless network.
• Appendix C: Windows Help
This appendix describes how you can use Windows Help for instructions about networking, such asinstalling
the TCP/IP protocol.
• Appendix D: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
• Appendix E: Specifications
This appendix provides the Range Expander’s technical specifications.
3
Chapter 1: Introduction
What’s in this User Guide?
Wireless-G Range Expander
• Appendix F: Warranty Information
This appendix supplies the Range Expander’s warranty information.
• Appendix G: Regulatory Information
This appendix supplies the Range Expander’s regulatory information.
• Appendix H: 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 Range Expander
Chapter 2: Planning Your Wireless Network
Network Topology
A wireless network is a group of computers, each equipped with one wireless adapter. Computers in a wireless
network must be configured to share the same radio channel. Several PCs equipped with wireless cards or
adapters can communicate with one another to form an ad-hoc network.
Linksys wireless adapters also provide users access to a wired network when using an access point or wireless
router. An integrated wireless and wired network is called an infrastructure network. Each wireless PC in an
infrastructurenetwork can talk toany computer in a wirednetwork infrastructure via the access point orwireless
router.
An infrastructure configuration extends the accessibility of a wireless PC to a wired network, and can double the
effectivewireless transmission range for twowireless adapter PCs. Since an access point is able to forwarddata
within a network, the effective transmission range in an infrastructure network can be doubled.
Roaming
Infrastructure mode also supports roaming capabilities for mobile users. Roaming means that you can move your
wireless PC within your network and the access points will pick up the wireless PC's signal, providing that they
both share the same channel and SSID.
Should you consider roaming, choose a feasible radio channel and optimum access point position. Proper access
point positioning combined with a clear radio signal will greatly enhance performance.
infrastructure: a wireless network that is bridged to a wired
network via an access point.
ad-hoc: a group of wireless devices communicating
directly with each other (peer-to-peer) without the use of
an access point.
roaming: the ability to take awireless device from one access
point's range to another without losing the connection.
SSID: your wireless network's name.
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