Linksys WPC55AG Bedienungsanleitung

A Division of Cisco Systems, Inc.

Model No.

Notebook Adapter

Wireless A+G

WPC55AG

User Guide

WIRELESS

Dual-Band

GHz

2.4

802.11g

802.11a

Dual-Band Wireless A+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 Dual-Band Wireless A+G Notebook Adapter has been designed to make understanding

networking 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 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

WPC55AG_V1.1-UG40126A JL

Dual-Band Wireless A+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 Dual-Band Wireless A+G Notebook Adapter 6

The LED Indicators 6

Chapter 4: Software Installation and Configuration 7

The Installation Procedure 8

Chapter 5: Hardware Installation 11

Connecting the Adapter 11

Chapter 6: Using the WLAN Monitor 12

Accessing the WLAN Monitor 12

Link Information 12

Site Survey 15

Profiles 16

Creating a New Profile 17

Appendix A: Troubleshooting 27

Common Problems and Solutions 27

Frequently Asked Questions 28

Appendix B: Wireless Security 31

Security Precautions 31

Security Threats Facing Wireless Networks 31

Appendix C: Windows Help 34

Appendix D: Glossary 35

Appendix E: Specifications 42

Appendix F: Warranty Information 43

Appendix G: Regulatory Information 44

Appendix H: Contact Information 46

Dual-Band Wireless A+G Notebook Adapter

List of Figures

Figure 3-1: Front Panel 6

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

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

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

Figure 4-4: Setup Wizard’s Wireless Mode Screen 9

Figure 4-5: Setup Wizard’s Wireless Channel Screen 9

Figure 4-6: Setup Wizard’s Finalize Settings Screen 10

Figure 4-7: Setup Wizard’s Congratulations Screen 10

Figure 5-1: Installing the Adapter 11

Figure 6-1: The WLAN Monitor Icon 12

Figure 6-2: Link Information 12

Figure 6-3: More Information - Network Settings 13

Figure 6-4: More Information - Network Statistics 14

Figure 6-5: Site Survey 15

Figure 6-6: Profiles 16

Figure 6-7: Importing a Profile 16

Figure 6-8: Exporting a Profile 16

Figure 6-9: Creating a New Profile 17

Figure 6-10: Enter Profile Name 17

Figure 6-11: Profile Wizard 17

Figure 6-12: Network Setting for New Profile 18

Figure 6-13: Choose a network type 18

Figure 6-14: Wireless Settings for New Profile 19

Figure 6-15: Security Setting for New Profile 19

Figure 6-16: WEP Settings 20

Figure 6-17: WPA-PSK Setting 21

Figure 6-18: TKIP Settings 21

Figure 6-19: WPA-RADIUS Setting 22

Figure 6-20: TKIP Setting 22

Figure 6-21: EAP-TLS Settings 23

Dual-Band Wireless A+G Notebook Adapter

Figure 6-22: EAP-PEAP Settings 23

Figure 6-23: RADIUS Setting 24

Figure 6-24: EAP-TLS Settings 24

Figure 6-25: EAP-PEAP Settings 25

Figure 6-26: LEAP Settings 25

Figure 6-27: Confirm New Settings for New Profile 26

Figure 6-28: Congratulations for New Profile 26

Chapter 1: Introduction

Welcome

Dual-Band Wireless A+G Notebook Adapter

Chapter 1: Introduction

Welcome

Thank you for choosing the Dual-Band Wireless A+G Notebook Adapter. With this Adapter, your wireless

networking experience will be faster and easier than ever.

The Linksys Dual-Band Wireless A+G Notebook Adapter lets your notebook communicate with all three wireless

network standards. With one PC Card, you can connect to Wireless-A (802.11a), Wireless-G (802.11g) and

Wireless-B (802.11b) networks.

Wireless-B networks have a data rate of 11Mbps, and are commonly found in corporate environments and in

homes for household Internet connectivity without the need for running cables. They're also popping up all over

the country in coffee shops, airports, hotels, convention centers, and other public spaces offering “on the go”

connectivity to mobile users.

In high speed or heavy usage environments, Wireless-B is quickly being replaced by a new standard, Wireless-G,

which uses the same 2.4GHz radio band, but at 54Mbps, is almost five times faster. The third wireless network

standard is Wireless-A, which also runs at 54Mbps, but operates in the less-crowded 5GHz radio band.

Wireless-A is mostly used in corporate installations.

Whichever standard you encounter, the Dual-Band Wireless A+G Notebook Adapter is ready to connect. And it's

simple to use. Just pop it into a PC Card slot and run the included Setup Wizard, which will walk you through the

configuration. All wireless communications can be protected by up to 152-bit encryption, so your data stays

secure.

Use the instructions in this Guide to help you set up and install the Adapter. These instructions should be all you

need to get the most out of the Dual-Band Wireless A+G Notebook Adapter.

802.11b: an IEEE 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: an IEEE wireless networking standard

that specifies a maximum data transfer rate of

54Mbps and an operating frequency of 2.4GHz.

802.11a: an IEEE wireless networking standard

that specifies a maximum data transfer rate of

54Mbps and an operating frequency of 5GHz.

Chapter 1: Introduction

What’s in this Guide?

Dual-Band Wireless A+G Notebook Adapter

What’s in this Guide?

This user guide covers the steps for setting up and using the Dual-Band Wireless A+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 Dual-Band Wireless A+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 use 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 WLAN Monitor

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

• Appendix A: Troubleshooting

This appendix describes some potential 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?

Dual-Band Wireless A+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

Dual-Band Wireless A+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

infrastructurenetworkcantalk to any computer ina wired network infrastructurevia 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 twowirelessadapter PCs. Since an access pointis 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 SSID.

Before enabling 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.

Chapter 2: Planning Your Wireless Network

Network Layout

Dual-Band Wireless A+G Notebook Adapter

Network Layout

Dual-Band Wireless A+G products offer the most flexibility, because they can connect to 802.11a networks, or

they can connect to networks with 802.11g and/or 802.11bdevices—depending on the settings youconfigure on

the dual-band products.

The Dual-Band Wireless A+G Notebook Adapter is compatible with all 802.11a, 802.11b, and 802.11g routers, as

well as access points. It will also communicate with other wireless notebook adapters for your laptop computers,

wireless PCI adapters for your desktop PCs, and wireless USB adapters when you want toenjoy USBconnectivity.

Wireless products will also communicate with wireless print servers.

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 wired 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.

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