Linksys WUSBF54G Manuale utente

A Division of Cisco Systems, Inc.

Model No.

USB Network Adapter

Wireless-G

WUSBF54G

User Guide

WIRELESS

GHz

2.4

802.11g

with Wi-Fi Finder

Wireless-G USB Network Adapter with Wi-Fi Finder

Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco

rights reserved. Other brands and product names are trademarks or registered trademarks of their respective

holders.

How to Use this User Guide

This User Guide has been designed to make understanding networking with the Wireless-G USB Network Adapter

with Wi-Fi Finder 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 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 USB Network Adapter with Wi-Fi Finder.

This checkmark means there is a Note of interest and is something you should pay special

attention to while using the Wireless-G USB Network Adapter with Wi-Fi Finder.

This question mark provides you with a reminder about something you might need

to do while using the Wireless-G USB Network Adapter with Wi-Fi Finder.

word: definition.

Figure 0-1: Sample Figure Description

WUSBF54G-UG-501011A BW

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 USB Network Adapter with Wi-Fi Finder

TableofContents

Chapter 1: Introduction 1

Welcome 1

What’s in this Guide? 2

Chapter 2: Planning your Wireless Network 4

Network Topology 4

Roaming 4

Network Layout 5

Chapter 3: Getting to Know and Using the Wireless-G Network Adapter

with Wi-Fi Finder 6

The Front Panel 6

Using the Wi-Fi Finder 7

The Side Panels 8

Chapter 4: Setting up and Connecting the Wireless-G USB Network Adapter

with Wi-Fi Finder 9

Starting the Setup Wizard 9

Connecting the Adapter 10

Setting Up the Adapter 10

Chapter 5: Using the Wireless Network Monitor 20

Accessing the Wireless Network Monitor 20

Link Information Screens 20

Site Survey 23

Profiles 24

Creating a New Profile 25

Appendix A: Troubleshooting 35

Common Problems and Solutions 35

Frequently Asked Questions 36

Appendix B: Using Windows XP Wireless Configuration 39

Appendix C: Wireless Security 42

Security Precautions 42

Security Threats Facing Wireless Networks 42

Appendix D: Windows Help 45

Wireless-G USB Network Adapter with Wi-Fi Finder

Appendix E: Glossary 46

Appendix F: Specifications 53

Appendix G: Warranty Information 54

Appendix H: Regulatory Information 55

Appendix I: Contact Information 57

Wireless-G USB Network Adapter with Wi-Fi Finder

ListofFigures

Figure 3-1: Front Panel 6

Figure 3-2: Wi-Fi Finder’s Wireless Network Screen 7

Figure 3-3: Wi-Fi Finder’s ON/OFF Switch and Buttons 8

Figure 4-1: Setup Wizard’s Welcome Screen 9

Figure 4-2: Setup Wizard’s License Agreement 9

Figure 4-3: The Connecting the Adapter Screen 10

Figure 4-4: Available Wireless Network 10

Figure 4-5: Available Wireless Network 11

Figure 4-6: Wireless Security - WEP 11

Figure 4-7: Wireless Security - WPA Personal 12

Figure 4-8: Congratulations 12

Figure 4-9: Available Wireless Network 13

Figure 4-10: Network Settings 13

Figure 4-11: Wireless Mode 14

Figure 4-12: Ad-Hoc Mode Settings 14

Figure 4-13: Wireless Security 15

Figure 4-14: Wireless Security - WEP 15

Figure 4-15: Wireless Security - WPA Personal 16

Figure 4-16: Wireless Security - WPA Enterprise - EAP-TLS 17

Figure 4-17: Wireless Security - WPA Enterprise - PEAP 17

Figure 4-18: Wireless Security - RADIUS - EAP-TLS 18

Figure 4-19: Wireless Security - RADIUS - PEAP 18

Figure 4-20: Confirm New Settings 19

Figure 4-21: Congratulations 19

Figure 5-1: Wireless Network Monitor Icon 20

Figure 5-2: Link Information 20

Figure 5-3: More Information - Wireless Network Status 21

Figure 5-4: More Information - Wireless Network Statistics 22

Figure 5-5: Site Survey 23

Figure 5-6: WEP Key Needed for Connection 23

Wireless-G USB Network Adapter with Wi-Fi Finder

Figure 5-7: WPA-Personal Needed for Connection 23

Figure 5-8: Profiles 24

Figure 5-9: Import a Profile 24

Figure 5-10: Export a Profile 24

Figure 5-11: Create a New Profile 25

Figure 5-12: Available Wireless Network 25

Figure 5-13: Available Wireless Network 26

Figure 5-14: WEP Key Needed for Connection 26

Figure 5-15: WPA-Personal Needed for Connection 27

Figure 5-16: The Congratulations Screen 27

Figure 5-17: Available Wireless Network 28

Figure 5-18: Network Settings 28

Figure 5-19: Wireless Mode 29

Figure 5-20: Ad-Hoc Mode Settings 29

Figure 5-21: Wireless Security 30

Figure 5-22: Wireless Security - WEP 30

Figure 5-23: Wireless Security - WPA Personal 31

Figure 5-24: Wireless Security - WPA Enterprise - EAP-TLS 32

Figure 5-25: Wireless Security - WPA Enterprise - PEAP 32

Figure 5-26: Wireless Security - RADIUS - EAP-TLS 33

Figure 5-27: Wireless Security - RADIUS - PEAP 33

Figure 5-28: Confirm New Settings 34

Figure 5-29: The Congratulations Screen 34

Figure B-1: Wireless Network Monitor Icon 39

Figure B-2: Windows XP - Use Windows XP Wireless Configuration 39

Figure B-3: Windows XP Wireless Configuration Icon 39

Figure B-4: Available Wireless Network 40

Figure B-5: No Wireless Security 40

Figure B-6: Network Connection - Wireless Security 41

Figure B-7: Wireless Network Connection 41

Chapter 1: Introduction

Welcome

Wireless-G USB Network Adapter with Wi-Fi Finder

Chapter1:Introduction

Welcome

Thank you for choosing the Wireless-G USB Network Adapter with Wi-Fi Finder. With this Adapter, your wireless

networking experience will be faster and easier than ever.

How does the Adapter do this? Like all wireless products, the Adapter allows for greater range and mobility

within your wireless network. Connecting to your PC via the USB port means that this Adapter leaves the PC’s

slots open for other purposes. This adapter communicates over the 802.11g wireless standard, one of the newest

wireless standards, to communicate with your network. It also has a convenient Wi-Fi Finder that enables you to

find an available wireless network to connect to with just a click of a button.

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.

Use the instructions in this Guide to help you connect the Adapter, set it up, and configure it for your network.

These instructions should be all you need to get the most out of the Adapter.

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.

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.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G USB Network Adapter with Wi-Fi Finder

What’s in this Guide?

This user guide covers the steps for setting up and using the Wireless-G USB Network Adapter with Wi-Fi Finder.

• Chapter 1: Introduction

This chapter describes the Adapter’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: Setting Up and Connecting the Wireless-G USB Network Adapter with Wi-Fi Finder.

This chapter shows you how to setup and connect the Adapter.

• Chapter 4: Using the Wireless Network Monitor

This chapter show you how to use the Adapter’s Wireless Network Monitor.

• Appendix A: Troubleshooting

This appendix describes some problems and solutions, as well as frequently asked questions, regarding

installation and use of the Adapter.

• Appendix B: Using Windows XP Wireless Configuration

This appendix describes how Windows XP users can use Window’s built-in wireless configuration to monitor

their Adapter.

• Appendix C: Wireless Security

This appendix discusses security issues regarding wireless networking and measures you can take to help

protect your wireless network.

• Appendix D: Windows Help

This appendix describes how you can use Windows Help for instructions about networking, such as installing

the TCP/IP protocol.

• Appendix E: Glossary

This appendix gives a brief glossary of terms frequently used in networking.

• Appendix F: Specifications

This appendix provides the Adapter’s technical specifications.

• Appendix G: Warranty Information

This appendix supplies the Adapter’s warranty information.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G USB Network Adapter with Wi-Fi Finder

• Appendix H: Regulatory Information

This appendix supplies the Adapter’s regulatory information.

• Appendix I: Contact Information

This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Chapter 2: Planning your Wireless Network

Network Topology

Wireless-G USB Network Adapter with Wi-Fi Finder

Chapter2:PlanningyourWirelessNetwork

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

infrastructure network can talk to any computer in a wired network infrastructure via the access point or wireless

router.

An infrastructure configuration extends the accessibility of a wireless PC to a wired network, and can double the

effective wireless transmission range for two wireless adapter PCs. Since an access point is able to forward data

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.

Before enabling 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.

access point: device that allows wireless-

equipped computers and other devices to

communicate with a wired network.

ad-hoc: a group of wireless devices

communicating directly with each other (peer-

to-peer) without the use of an access point

infrastructure: Configuration in which a

wireless network is bridged to a wired

network via an access point.

roaming: the ability to take a wireless

device from one access point's range to

another without losing the connection.

ssid: your wireless network’s name

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