Linksys WPC54G EU Manuale utente

A Division of Cisco Systems, Inc.

Model No.

Notebook Adapter

Wireless-G

WPC54G

User Guide

WIRELESS

GHz

2.4

802.11g

Wireless-G Notebook Adapter

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.

This User Guide

The User Guide to the Wireless-G Notebook Adapter has been designed to make understanding networking 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 Adapter.

word: definition.

This checkmark means there is a note of interest and

is something you should pay special attention to while

using the Adapter.

This question mark provides you with a reminder about

something you might need to do while using the Adapter.

Figure 0-1: Sample Figure Description

WPC54G-UG-40223D KL

Wireless-G Notebook Adapter

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

Roaming 4

Network Layout 5

Chapter 3: Getting to Know the Wireless-G Notebook Adapter 6

The LED Indicators 6

Chapter 4: Software Installation and Configuration 7

The Installation Procedure 8

Chapter 5: Hardware Installation 12

Connecting the Adapter 12

Chapter 6: Using the Wireless Network Monitor 13

Accessing the Wireless Network Monitor 13

Link Information 13

Site Survey 16

Profiles 17

Creating a New Profile 18

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: Windows Help 35

Appendix D: Glossary 36

Appendix E: Specifications 40

Appendix F: Warranty Information 41

Appendix G: Regulatory Information 42

Appendix H: Contact Information 45

Wireless-G Notebook Adapter

List of Figures

Figure 3-1: Front Panel 6

Figure 4-1: The Setup Wizard’s Welcome Screen 7

Figure 4-2: The Setup Wizard’s License Agreement 8

Figure 4-3: The Setup Wizard’s Wireless Mode Screen 8

Figure 4-4: The Setup Wizard’s Ad-Hoc Mode Screen 9

Figure 4-5: The Setup Wizard’s WEP Screen 9

Figure 4-6: The Setup Wizard’s WPA-PSK Screen 10

Figure 4-7: The Setup Wizard’s Check Settings Screen 10

Figure 4-8: The Setup Wizard’s Congratulations Screen 11

Figure 5-1: Installing the Adapter into your notebook 12

Figure 6-1: Link Information 13

Figure 6-2: Wireless Network Status 14

Figure 6-3: Wireless Network Statistics 15

Figure 6-4: Site Survey 16

Figure 6-5: Profiles 17

Figure 6-6: Importing a Profile 17

Figure 6-7: Exporting a Profile 17

Figure 6-8: Creating a New Profile 18

Figure 6-9: Enter Profile Name 18

Figure 6-10: Wireless Mode for New Profile 19

Figure 6-11: Ad-Hoc Mode Settings 19

Figure 6-12: Network Settings 20

Figure 6-13: Wireless Security for New Profile 21

Figure 6-14: WEP Setting for New Profile 21

Figure 6-15: WPA-PSK Settings 22

Figure 6-16: TKIP Settings 22

Figure 6-17: WPA RADIUS Settings 23

Figure 6-18: Encryption Type 23

Figure 6-19: EAP-TLS Authentication 24

Figure 6-20: EAP-TTLS Authentication 24

Wireless-G Notebook Adapter

Figure 6-21: EAP-MD5 Authentication 24

Figure 6-22: EAP-PEAP Authentication 24

Figure 6-23: EAP-LEAP Authentication 24

Figure 6-24: RADIUS Settings 25

Figure 6-25: EAP-TLS Authentication 25

Figure 6-26: EAP-TTLS Authentication 25

Figure 6-27: EAP-MD5 Authentication 26

Figure 6-28: EAP-PEAP Authentication 26

Figure 6-29: LEAP Authentication 26

Figure 6-30: Confirm New Settings 27

Figure 6-31: The Congratulations Screen 27

Chapter 1: Introduction

Welcome

Wireless-G Notebook Adapter

Chapter 1: Introduction

Welcome

Thank you for choosing the Wireless-G Notebook Adapter. With this Adapter, your wireless networking experience

will be faster and easier than ever.

Like all wireless products, the Adapter allows for greater range and mobility within your wireless network. This

adapter communicates over the 54Mbps 802.11g wireless standard, which is almost five times faster than

802.11b. But since they share the same 2.4GHz radio band, the Adapter can also communicate with the widely

used 11Mbps 802.11b standard.

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. For more information

about wireless networks, refer to Chapter 2: Planning Your Wireless Network.

The included Setup Wizard will walk you through configuring the adapter to your network's settings, step by step.

Then just slide it into your computer's PC Card slot and enjoy your wireless network. Future changes to your

network settings can be made with the Wireless Network Monitor, explained in Chapter 6.

Further information about the Adapter’s functions can be found in Appendix A: Troubleshooting. If you’re

concerned about wireless security, Appendix B shows you how to keep your network secure. Further appendices

provide more information about the Adapter and networking in general to help you get the most out of the

Wireless-G Notebook Adapter.

802.11b: a wireless networking standard that

specifies a maximum data transfer rate of 11Mbps

and an operating frequency of 2.4GHz.

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.

802.11g a wireless networking standard that

specifies a maximum data transfer rate of 54Mbps

and an operating frequency of 2.4GHz.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G Notebook Adapter

What’s in this Guide?

This user guide covers the steps for setting up and using the Wireless-G Notebook Adapter.

• 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: Getting to Know the Wireless-G Notebook Adapter

This chapter describes the physical features of the Adapter.

• Chapter 4: Software Installation and Configuration

This chapter instructs you on how to install the Adapter’s Setup Wizard and Configure the Adapter

• Chapter 5: Hardware Installation

This chapter shows you how to connect the Adapter to your PC.

• Chapter 6: 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: 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 as installing

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 Adapter’s technical specifications.

• Appendix F: Warranty Information

This appendix supplies the Adapter’s warranty information.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G Notebook Adapter

• Appendix G: Regulatory Information

This appendix supplies the Adapter’s regulatory information.

• Appendix H: 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 Notebook Adapter

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

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.

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 a wireless device

from one access point's range to another without

losing the connection.

ssid: your wireless network's name.

topology: the physical layout of a network.

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

router: a networking device that

connects multiple networks together.

Chapter 2: Planning your Wireless Network

Network Layout

Wireless-G Notebook Adapter

Network Layout

Linksys wireless access points and wireless routers have been designed for use with 802.11a, 802.11b, and

802.11g products. With 802.11g products communicating with the 802.11b standard and some products

incorporating both “a” and “g”, products using these standards can communicate with each other.

Access points and wireless routers are compatible with 802.11a, 802.11b and 802.11g adapters, such at the PC

Cards for your laptop computers, PCI Card for your desktop PC, and USB Adapters for when you want to enjoy USB

connectivity. Wireless products will also communicate with the wireless PrintServer.

When you wish to connect your wired network with your wireless network, network ports on access points and

wireless routers can be connected to any of Linksys's switches or routers.

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 wireless products.

802.11a: a wireless networking standard that

specifies a maximum data transfer rate of

54Mbps and an operating frequency of 5GHz.

switch: a data switch that connects computing

devices to host computers, allowing a large number of

devices to share a limited number of ports

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