Linksys WMP55AG User Manual

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A Division of Cisco Systems, Inc.

Dual-Band

2.4

Model No.

GHz

802.11a

GHz

802.11g

WIRELESS

WMP55AG

Dual-Band

Wireless A+G

PCI Adapter

User Guide

Dual-Band Wireless A+G PCI Adapter

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.

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.

This User Guide

The User Guide to the Dual-Band Wireless A+G PCI Adapter has been designed to make understanding networking easier than ever. Look for the following items when reading this guide:

This checkmark means there is a note of interest and is something you should pay special attention to while using the Adapter.

This exclamation point means there is a caution or warning and is something that could damage your property or the Adapter.

This question mark provides you with a reminder about something you might need to do while using the Adapter.

In addition to these symbols, there are definitions for technical terms that are presented like this:

word: definition.

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”.

WMP55AG_V1.3-UG-50330 KL

Figure 0-1: Sample Figure Description

Dual-Band Wireless A+G PCI 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 4

Chapter 3: Getting to Know the Dual-Band Wireless A+G PCI Adapter 6

The LED Indicator 6

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter 7

Using the Setup Wizard 7

Chapter 5: Hardware Installation 16

Connecting the Adapter 16

Chapter 6: Using the Wireless Network Monitor 17

Accessing the Wireless Network Monitor 17 Using the Wireless Network Monitor 18 Link Information 18 Site Survey 21 Profiles 22 Creating a New Profile 23

Appendix A: Troubleshooting 32

Common Problems and Solutions 32 Frequently Asked Questions 33

Appendix B: Wireless Security 37

Security Precautions 37 Security Threats Facing Wireless Networks 37

Appendix C: Windows Help 40 Appendix D: Glossary 41 Appendix E: Specifications 46 Appendix F: Warranty Information 47 Appendix G: Regulatory Information 48 Appendix H: Contact Information 50

Dual-Band Wireless A+G PCI Adapter

List of Figures

Figure 3-1: The ACT LED 6 Figure 4-1: Setup Wizard’s Welcome Screen 7 Figure 4-2: Setup Wizard’s License Agreement 7 Figure 4-3: Setup Wizard’s Wireless Network Screen 8 Figure 4-4: Setup Wizard’s Wireless Mode Screen 8 Figure 4-5: Setup Wizard’s Ad-Hoc Mode Settings Screen 9 Figure 4-6: Setup Wizard’s Wireless Security Screen 9 Figure 4-7: Setup Wizard’s Wireless Security - WEP Screen 10 Figure 4-8: Setup Wizard’s Wireless Security - WPA Personal Using TKIP Screen 11 Figure 4-9: Setup Wizard’s Wireless Security - WPA Enterprise Using EAP-TLS Screen 12 Figure 4-10: Setup Wizard’s Wireless Security - WPA Enterprise Using PEAP Screen 12 Figure 4-11: Setup Wizard’s Wireless Security - RADIUS Using EAP-TLS Screen 13 Figure 4-12: Setup Wizard’s Wireless Security - RADIUS Using PEAP Screen 13 Figure 4-13: Setup Wizard’s Wireless Security - LEAP Screen 14 Figure 4-14: Setup Wizard’s Check Settings Screen 14 Figure 4-15: Digital Signature Not Found Screen 15 Figure 4-16: Setup Wizard’s Congratulations Screen 15 Figure 5-1: Insert the Adapter into Your Notebook 16 Figure 5-2: Digital Signature Not Found Screen 16 Figure 6-1: Wireless Network Monitor Icon 17 Figure 6-2: Windows XP - Use Windows XP Wireless Configuration 17 Figure 6-3: Windows XP - Use Linksys Wireless Network Monitor 17 Figure 6-4: Link Information 18 Figure 6-5: More Information - Wireless Network Status 19 Figure 6-6: More Information-Network Statistics 20 Figure 6-7: Site Survey 21 Figure 6-8: WEP Key Needed for Connection 21 Figure 6-9: WPA-Personal Needed for Connection 21 Figure 6-10: Profiles 22 Figure 6-11: Import a Profile 22

Dual-Band Wireless A+G PCI Adapter

Figure 6-12: Export a Profile 22 Figure 6-13: Create a New Profile 23 Figure 6-14: Enter Profile Name 23 Figure 6-15: Network Settings for New Profile 23 Figure 6-16: Wireless Network for New Profile 24 Figure 6-17: Wireless Mode for New Profile 24 Figure 6-18: Ad-Hoc Mode Settings for New Profile 25 Figure 6-19: Wireless Security for New Profile 26 Figure 6-20: Wireless Security - WEP for New Profile 26 Figure 6-21: Wireless Security - WPA Personal for New Profile 27 Figure 6-22: Wireless Security - WPA Enterprise Using EAP-TLS for New Profile 28 Figure 6-23: Wireless Security - WPA Enterprise Using EAP-PEAP for New Profile 28 Figure 6-24: Wireless Security - RADIUS Using EAP-TLS for New Profile 29 Figure 6-25: Wireless Security - RADIUS Using PEAP for New Profile 29 Figure 6-26: Wireless Security - LEAP for New Profile 30 Figure 6-27: Confirm New Settings for New Profile 30 Figure 6-28: Congratulations for New Profile 31

Dual-Band Wireless A+G PCI Adapter

Chapter 1: Introduction

Welcome

Thank you for choosing the Dual-Band Wireless A+G PCI Adapter. 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, whether it’s using the Wireless-A (802.11a), Wireless-G (802.11g), or Wireless-B (802.11b) standard. Using this Adapter, your notebook has the flexibility to communicate using any of the three wireless networking standards.

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.

network: a series of computers or devices connected for the purpose of data sharing, storage, and/or transmission between users.

adapter: a device that adds network functionality to your PC.

802.11a: an IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz.

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.

The included Setup Wizard walks you through configuring the Adapter to your wireless network settings, step by step. Use the instructions in this Guide to help you set up the Adapter using the Setup Wizard and connect the Adapter. These instructions should be all you need to get the most out of the Adapter.

Chapter 1: Introduction Welcome

802.11g: an IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 2.4GHz.

802.11b: an IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.

Dual-Band Wireless A+G PCI Adapter

What’s in this Guide?

This user guide covers the steps for setting up and using the Dual-Band Wireless A+G PCI 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 PCI Adapter This chapter describes the physical features of the Adapter.

• Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter This chapter instructs you on how to run the Adapter’s Setup Wizard and configure the Adapter.

• Chapter 5: Connecting the Dual-Band Wireless A+G PCI Adapter This chapter shows you how to connect the Adapter to your PC.

• Chapter 6: Using the Wireless Network Monitor This chapter explains how to use the Adapter’s Wireless Network 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 PCI 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 1: Introduction What’s in this Guide?

Dual-Band Wireless A+G PCI 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.

topology: the physical layout of a network.

network: a series of computers or devices

connected for the purpose of data sharing, storage, and/or transmission between users

adapter: a device that adds network functionality to your PC

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, provided that they both share the same channel and SSID.

Choose a feasible radio channel and optimum access point position. Proper access point positioning combined with a clear radio signal will greatly enhance performance.

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 802.11b devices—depending on the settings you configure on the dual-band products.

The Dual-Band Wireless A+G PCI 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 to enjoy USB connectivity. Wireless products will also communicate with wireless print servers.

ad-hoc: a group of wireless devices communicating directly with each other (peerto-peer) without the use of an access point.

access point: a device that allows wirelessequipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network

infrastructure: a wireless network that 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.

Chapter 2: Planning Your Wireless Network Network Topology

Dual-Band Wireless A+G PCI Adapter

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 products that work with the Dual-Band Wireless A+G PCI Adapter.

Chapter 2: Planning Your Wireless Network Network Layout

Dual-Band Wireless A+G PCI Adapter

Chapter 3: Getting to Know the Dual-Band Wireless A+G PCI Adapter

The LED Indicator

The Adapter's LED display information about network activity.

Figure 3-1: The ACT LED

ACT Green. The ACT LED lights up when the Adapter is powered on and has an active connection. It

flashes when data is transmitted or received.

Chapter 3: Getting to Know the Dual-Band Wireless A+G PCI Adapter The LED Indicator

Dual-Band Wireless A+G PCI Adapter

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter

The Dual-Band Wireless A+G PCI Adapter Setup Wizard will guide you through the installation procedure. The Setup Wizard will install the driver and Wireless Network Monitor, as well as configure the Adapter.

NOTE: You must run the Setup Wizard before connecting the Adapter to your computer.

Using the Setup Wizard

Insert the Setup Wizard CD-ROM into your CD-ROM drive. The Setup Wizard should run automatically, and the

Welcome screen 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).

On the Welcome screen, you have the following choices:

Figure 4-1: Setup Wizard’s Welcome Screen

Install - Click the Install button to begin the software installation process.

User Guide - Click the User Guide button to open the PDF file of this User Guide.

Exit - Click the Exit button to exit the Setup Wizard.

1. To install the Adapter, click the Install button on the Welcome screen.

2. After reading the License Agreement, click the Next button if you agree, or click the Cancel button to end the installation.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Figure 4-2: Setup Wizard’s License Agreement

Dual-Band Wireless A+G PCI Adapter

3. The Setup Wizard will ask you to choose a network type. Click the 5GHz or 2.4GHz radio button if you will connect to 802.11a networks, as well as 802.11g and/or 802.11b networks. Click the 5GHz only radio button if you will connect only to 802.11a networks. Click the 2.4GHz only radio button if you will connect only to

802.11g and/or 802.11b networks.

Click the Next button.

4. The Setup Wizard will ask you to choose a network mode. Click the Infrastructure Mode 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 Mode radio button if you want multiple wireless computers to network directly with each other.

Figure 4-3: Setup Wizard’s Wireless Network Screen

In the SSID field, enter the SSID of your wireless network. The SSID must be identical for all devices in the network. The default setting is linksys (all lowercase). Click the Next button.

NOTE: An SSID is the network name shared by all devices in a wireless network. Your network’s SSID should be unique to your network and identical for all devices within the network.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

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

Dual-Band Wireless A+G PCI Adapter

5. If you chose Infrastructure Mode, go to Step 6 now. If you chose Ad-Hoc Mode, the Ad-Hoc Mode Settings screen will appear.

Select the correct operating channel for your wireless network. The channel you choose should match the channel set on the other devices in your wireless network. If you are unsure about which channel to use, keep the default setting, Auto.

Click the Next button. Click the Back button to change any settings.

6. If you don’t want to use encryption, select Disabled. Then, click the Next button and proceed to Step 8.

To utilize encryption, first select the method of security you want to use: WEP, WPA-Personal, WPA- Enterprise, RADIUS, or LEAP. WEP stands for Wired Equivalent Privacy, and WPA stands for Wi-Fi Protected Access. WPA is a stronger security method than WEP. RADIUS stands for Remote Authentication Dial-In User Service, and LEAP stands for Lightweight Extensible Authentication Protocol. Click the Next button to continue or the Back button to return to the previous screen.

Figure 4-5: Setup Wizard’s Ad-Hoc Mode Settings Screen

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Figure 4-6: Setup Wizard’s Wireless Security Screen

encryption: encoding data transmitted in a network.

wep (wired equivalent privacy): a method of encrypting network

data transmitted on a wireless network for greater security.

Dual-Band Wireless A+G PCI Adapter

7. Proceed to the appropriate section for your security method: WEP, WPA-Personal, WPA-Enterprise, RADIUS, or LEAP.

WEP

WEP - For 802.11g and/or 802.11b networking, select 64-bit or 128-bit encryption from the drop-down menu. For 802.11a networking, select 64-bit, 128-bit, or 152-bit encryption (152-bit is available only for

802.11a networking).

Then enter a passphrase or WEP key.

Passphrase - Enter a passphrase in the Passphrase field, so a WEP key is automatically generated. The passphrase is case-sensitive and should not be longer than 16 alphanumeric characters. It must match the passphrase of your other wireless network devices and is compatible with Linksys wireless products only. (If you have any non-Linksys wireless products, enter the WEP key manually on those products.)

WEP Key - The WEP key you enter must match the WEP key of your wireless network. For 64-bit encryption, enter exactly 10 hexadecimal characters. For 128-bit encryption, enter exactly 26 hexadecimal characters. For 152-bit encryption, enter exactly 32 hexadecimal characters. Valid hexadecimal characters are “0” to “9” and “A” to “F”.

For Advanced Users TX Key - The default transmit key number is 1. If your network’s access point or wireless router uses transmit

key number 2, 3, or 4, select the appropriate number from the TX Key drop-down box.

Figure 4-7: Setup Wizard’s Wireless Security -

WEP Screen

Authentication -The default is set to Auto, so it will auto-detect for Shared Key or Open System

authentication. For Shared Key authentication, both the sender and the recipient share a WEP key for authentication. For Open System authentication, the sender and the recipient do not share a WEP key for authentication. If you are not sure which authentication method to select, keep the default, Auto.

Click the Next button to continue or the Back button to return to the previous screen.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Dual-Band Wireless A+G PCI Adapter

WPA Personal

WPA Personal offers two encryption methods, TKIP and AES, with dynamic encryption keys. Select TKIP or

AES for encryption. Then enter a Passphrase that is 8-63 characters in length.

Encryption - Select the type of algorithm you want to use, TKIP or AES, from the Encryption drop-down

menu.

Passphrase - Enter a Passphrase, also called a pre-shared key, of 8-63 characters in the Passphrase field. The longer and more complex your Passphrase is, the more secure your network will be.

Click the Next button to continue or the Back button to return to the previous screen.

Figure 4-8: Setup Wizard’s Wireless Security -

WPA Personal Using TKIP Screen

wpa (wi-fi protected access: a wireless security protocol using TKIP (Temporal Key Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Dual-Band Wireless A+G PCI Adapter

WPA Enterprise

WPA Enterprise features WPA security used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) WPA Enterprise offers two authentication methods, EAPTLS and PEAP, as well as two encryption methods, TKIP and AES, with dynamic encryption keys.

Authentication - Select the authentication method your network is using, EAP-TLS or PEAP.

EAP-TLS

If you selected EAP-TLS, enter the login name of your wireless network in the Login Name field. Enter the name of the authentication server in the Server Name field (this is optional). From the Certificate drop-down menu, select the certificate you have installed to authenticate you on your wireless network. Select the type of encryption, TKIP or AES, from the Encryption drop-down menu.

Click the Next button to continue or the Back button to return to the previous screen.

PEAP

If you selected PEAP, enter the login name of your wireless network in the Login Name field. Enter the password of your wireless network in the Password field. Enter the name of the authentication server in the Server Name field (this is optional). From the Certificate drop-down menu, select the certificate you have installed to authenticate you on your wireless network; if you want to use any certificate, keep the default setting, Trust Any. Then select the authentication method used inside the PEAP tunnel, EAP-MSCHAP v2 or

Generic Token Card. Select the type of encryption, TKIP or AES, from the Encryption drop-down menu.

Figure 4-9: Setup Wizard’s Wireless Security -

WPA Enterprise Using EAP-TLS Screen

Click the Next button to continue or the Back button to return to the previous screen.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Figure 4-10: Setup Wizard’s Wireless Security -

WPA Enterprise Using PEAP Screen

Dual-Band Wireless A+G PCI Adapter

RADIUS

RADIUS features use of a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) RADIUS offers two authentication types: EAP-TLS and PEAP.

Authentication - Select the authentication method your network is using, EAP-TLS or PEAP.

EAP-TLS

Click the Next button to continue or the Back button to return to the previous screen.

PEAP

Click the Next button to continue or the Back button to return to the previous screen.

Figure 4-11: Setup Wizard’s Wireless Security -

RADIUS Using EAP-TLS Screen

radius (remote authentication dial-in user service): a protocol that uses an authentication server to control network access.

Figure 4-12: Setup Wizard’s Wireless Security -

RADIUS Using PEAP Screen

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Dual-Band Wireless A+G PCI Adapter

LEAP

If you selected LEAP, then enter the Username and Password that will authenticate you on your wireless network.

Username - Enter the username used for authentication.

Password - Enter the password used for authentication.

Confirm - Enter the password again.

Click the Next button to continue or the Back button to return to the previous screen.

Figure 4-13: Setup Wizard’s Wireless Security -

LEAP Screen

leap (lightweight extensible authentication protocol): a mutual authentication method that uses a username and password system.

8. The Setup Wizard will ask you to review your settings before it starts to install files. Click the Next button if you are satisfied with your settings, or click the Back button to change any settings.

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Figure 4-14: Setup Wizard’s Check Settings Screen

Dual-Band Wireless A+G PCI Adapter

9. At this point, you may see a Digital Signature Not Found screen may appear, indicating that a digital signature was not found. The Adapter’s software has been tested and found to work successfully with Windows 2000. Click the Yes button to continue.

10. After the software has been successfully installed, the Congratulations screen will appear. Click the Exit button.

Proceed to “Chapter 5: Connecting the Dual-Band Wireless A+G PCI Adapter.”

Figure 4-15: Digital Signature Not Found Screen

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter Using the Setup Wizard

Figure 4-16: Setup Wizard’s Congratulations Screen

Dual-Band Wireless A+G PCI Adapter

Chapter 5: Hardware Installation

NOTE: You must run the Setup Wizard to install the software before installing the Adapter.

Connecting the Adapter

1. Turn off your desktop PC.

2. Open your PC’s case, and locate an available PCI slot on the motherboard. Check with your computer’s manufacturer if you need instructions.

3. Slide the Adapter into the PCI slot. Make sure that all of its pins are touching the slot’s contacts. You may have to apply a bit of pressure to slide the Adapter all the way in.

4. After the Adapter is set firmly in place, secure its fastening tab to your PC’s chassis with a mounting screw. Then close your PC’s case.

5. Rotate the antenna so that it is positioned straight up and perpendicular to the horizon. This will ensure optimum wireless operating range and performance.

6. Power on your desktop PC.

7. Windows will detect the new hardware and begin installing the driver files in your operating system. Note: For Windows 2000 users, you may be informed that a digital signature has not been found after Windows detects the new hardware. This is normal, and it has been verified that the Adapter does work with Windows 2000. Click the Yes button to continue. Some Windows users may be asked to restart their computers.

Congratulations! The installation of the Dual-Band Wireless A+G PCI Adapter is complete.

If you want to check the link information, search for available wireless networks, or make additional

configuration changes, go to “Chapter 6: Using the Wireless Network Monitor.”

Chapter 5: Hardware Installation Connecting the Adapter

Figure 5-1: Insert the Adapter into Your Notebook

Figure 5-2: Digital Signature Not Found Screen

Dual-Band Wireless A+G PCI Adapter

Chapter 6: Using the Wireless Network Monitor

Use the Wireless Network Monitor to check the link information, search for available wireless networks, or create profiles that hold different configuration settings.

Accessing the Wireless Network Monitor

After installing the Adapter, the Wireless Network Monitor icon will appear in the system tray of your computer. If the Wireless Network Monitor is enabled, then the icon will be green. If the Wireless Network Monitor is disabled or the Adapter is not connected, then the icon will be gray.

If you right-click the icon, you will see these choices:

• About - Click About to view the version information for the driver and Wireless Network Monitor.

• Use Windows XP Wireless Configuration (Windows XP only) - If your computer is running Windows XP, then this choice will be available. If you want to use Windows XP Wireless Zero Configuration to control the Adapter—instead of using the Wireless Network Monitor—then select Use Windows XP Wireless

Configuration.

Figure 6-1: Wireless Network Monitor Icon

If you want to switch back to the Wireless Network Monitor, right-click the Wireless Network Monitor icon, and select Use Linksys Wireless Network Monitor.

NOTE: For more information about Wireless Zero Configuration, refer to Windows Help.

• Turn Monitor on - Select Turn Monitor on to enable the Wireless Network Monitor.

• Turn Monitor off - Select Turn Monitor off to disable the Wireless Network Monitor.

Besides selecting Turn Monitor on when you right-click the icon, you can also double-click the Wireless Network Monitor icon to activate the Wireless Network Monitor.

Chapter 6: Using the Wireless Network Monitor Accessing the Wireless Network Monitor

Figure 6-2: Windows XP - Use Windows XP

Wireless Configuration

Figure 6-3: Windows XP - Use Linksys

Wireless Network Monitor

Dual-Band Wireless A+G PCI Adapter

Using the Wireless Network Monitor

The opening screen of the Wireless Network Monitor is the Link Information screen. From this screen, you can find out how strong the current wireless signal is and how good the connection’s quality is. You can also click the More Information button to view additional status information about the current wireless connection. To search for available wireless networks, click the Site Survey tab. To perform configuration changes or create connection profiles, click the Profiles tab.

Link Information

The Link Information screen displays network mode, signal strength, and link quality information about the current connection. It also provides a button to click for additional status information.

Ad-Hoc Mode or Infrastructure Mode - The screen indicates whether the Adapter is currently working in adhoc or infrastructure mode.

Signal Strength - The Signal Strength bar indicates signal strength.

Link Quality - The Link Quality bar indicates the quality of the wireless network connection.

Click the More Information button to view additional information about the wireless network connection on the

Wireless Network Status screen.

Chapter 6: Using the Wireless Network Monitor Using the Wireless Network Monitor

Figure 6-4: Link Information

Dual-Band Wireless A+G PCI Adapter

Wireless Network Status

The Wireless Network Status screen provides information on your current network settings.

Status - This shows the status of the wireless network connection, as well as the network type, 2.4GHz (802.11g and/or 802.11b) or 5GHz (802.11a).

SSID - This is the unique name of the wireless network.

Wireless Mode - The mode of the wireless network currently in use is displayed here.

Transfer Rate - The data transfer rate of the current connection is shown here.

Channel - This is the channel to which the wireless network devices are set.

Security - The status of the wireless security feature is displayed here.

Authentication - This is your wireless network’s authentication method.

IP Address - The IP Address of the Adapter is displayed here.

Subnet Mask - The Subnet Mask of the Adapter is shown here.

Default Gateway - The Default Gateway address of the Adapter is displayed here.

DNS - This is the DNS address of the Adapter.

DHCP Client - This displays the Adapter’s status as a DHCP client.

MAC - The MAC address of the wireless network’s access point or wireless router is shown here.

Signal Strength - The Signal Strength bar indicates the signal strength.

Link Quality - The Link Quality bar indicates the quality of the wireless network connection.

Click the Statistics button to go to the Wireless Network Statistics screen. Click the Back button to return to the initial Link Information screen. Click the Save to Profile button to save the currently active connection settings to a profile.

Figure 6-5: More Information - Wireless Network Status

Chapter 6: Using the Wireless Network Monitor Link Information

Dual-Band Wireless A+G PCI Adapter

Wireless Network Statistics

The Wireless Networks Statistics screen provides statistics on your current network settings.

Transmit Rate - This is the data transfer rate of the current connection. (In Auto mode, the Adapter dynamically shifts to the fastest data transfer rate possible at any given time.)

Receive Rate - This is the rate at which data is received.

Packets Received - This shows the packets received by the Adapter, in real time, since connecting to the

wireless network or since the Refresh Statistics button was last pressed.

Packets Transmitted - This shows the packets transmitted from the Adapter, in real time, since connecting to the wireless network or since the Refresh Statistics button was last pressed.

Bytes Received - This shows the bytes received by the Adapter, in real time, since connecting to the wireless network or since the Refresh Statistics button was last pressed.

Bytes Transmitted - This shows the bytes transmitted from the Adapter, in real time, since connecting to the wireless network or since the Refresh Statistics button was last pressed.

Noise Level - This shows the level of background noise affecting the wireless signal. A lower reading translates into a higher quality signal.

Figure 6-6: More Information-Network Statistics

Signal Strength - This is the intensity of the wireless signal received by the Adapter.

Up Time - This indicates the length of the most recent connection to a wireless network.

Tota l Up Ti me - This indicates the cumulative total of the Adapter’s connection time.

Driver Version - This shows the version of the Adapter’s driver.

Signal Strength - The Signal Strength bar indicates the signal strength.

Link Quality - The Link Quality bar indicates the quality of the wireless network connection.

Click the Back button to return to the initial Link Information screen. Click the Status button to go to the Wireless Network Status screen. Click the Save to Profile button to save the currently active connection settings to a

profile. Click the Refresh Statistics button to update or reset the statistics. The Wireless Network Monitor will update the Transmit Rate, Receive Rate, Noise Level, and Signal Strength statistics. At the same time, the Packets Received and Transmitted counts, Bytes Received and Transmitted counts, and Up Time statistic will be reset to zero. (The Total Up Time statistic will not be reset.)

Chapter 6: Using the Wireless Network Monitor Link Information

Dual-Band Wireless A+G PCI Adapter

Site Survey

The Site Survey screen displays a list of available networks in the table on the left. The table shows each network’s SSID, Channel, and the quality of the wireless signal the Adapter is receiving. You may click SSID, GHz,

CH (Channel), or Signal, to sort by that field.

SSID - The SSID or unique name of the wireless network is displayed here.

GHz - This is the type of wireless network, 2.4GHz (802.11g and/or 802.11b) or 5GHz (801.11a).

CH - This is the channel that the network uses.

Signal - This is the percentage of signal strength, from 0 to 100%.

Site Information

For each network selected, the following settings are listed:

SSID - This the SSID or unique name of the wireless network.

Wireless Mode - This is the mode of the wireless network currently in use.

Channel - This is the channel to which the wireless network devices are set.

Security - The status of the wireless security feature is displayed here.

MAC - The MAC address of the wireless network’s access point is displayed here.

Refresh - Click the Refresh button to perform a new search for wireless devices.

Connect - To connect to one of the networks on the list, select the wireless network, and click the Connect

button. If the network has encryption enabled, then you will see a new screen appear.

If the network has WEP encryption enabled, then you will see the WEP Key Needed for Connection screen. Select the appropriate level of WEP encryption, 64-bit, 128-bit, or 152-bit (152-bit is only available for 802.11a networking). Then enter the network’s Passphrase or WEP Key. Click the Connect button. To cancel the connection, click the Cancel button.

If the network has WPA-Personal security enabled, then you will see the WPA-Personal Needed for Connection screen. Select the appropriate encryption type, TKIP or AES. Enter the network’s Passphrase or pre-shared key in the Passphrase field. Then click the Connect button. To cancel the connection, click the Cancel button.

Figure 6-7: Site Survey

Figure 6-8: WEP Key Needed for Connection

Figure 6-9: WPA-Personal Needed for Connection

Chapter 6: Using the Wireless Network Monitor Site Survey

Dual-Band Wireless A+G PCI Adapter

Profiles

The Profiles screen lets you save different configuration profiles for different network setups. The table on the left displays a list of available profiles with their profile names and SSIDs.

Profile - The name of the profile is displayed here.

SSID - The SSID or unique name of the wireless network is displayed here.

Profile Information

For each profile selected, the following are listed:

Wireless Network - This indicates the type of wireless network currently in use.

Wireless Mode - This is the mode of the wireless network currently in use.

Channel - This is the channel to which the wireless network devices are set.

Security - The status of the wireless security feature is displayed here.

Authentication - The authentication setting for the network is shown here.

Connect - To connect to a wireless network using a specific profile, select the profile, and click the Connect

button.

New - Click the New button to create a new profile. See the next section, “Creating a New Profile,” for detailed instructions.

Edit - Select the profile you want to change, and then click the Edit button.

Import - Click the Import button to import a profile that has been saved in another location. Select the appropriate file, and click the Open button.

Export - Select the profile you want to save in a different location, and click the Export button. Direct Windows to the appropriate folder, and click the Save button.

NOTE: If you want to export more than one profile, you have to export them one at a time.

Delete - Select the profile you want to delete, and then click the Delete button.

Figure 6-10: Profiles

Figure 6-11: Import a Profile

Figure 6-12: Export a Profile

Chapter 6: Using the Wireless Network Monitor Profiles

Dual-Band Wireless A+G PCI Adapter

Creating a New Profile

1. On the Profiles screen, click the New button to create a new profile.

2. Enter a name for the new profile, and click the OK button. Click the Cancel button to return to the Profiles screen without entering a name.

Figure 6-13: Create a New Profile

3. The Network Settings screen will appear. If your network has a router or other DHCP server, click the radio button next to Obtain network settings automatically (DHCP). Click the Next button to continue, or click the Cancel button to return to the Profiles screen.

If your network does not have a DHCP server, click the radio button next to Specify network settings. Enter an IP Address, Subnet Mask, Default Gateway, and DNS addresses appropriate for your network. You must specify the IP Address and Subnet Mask on this screen. If you are unsure about the Default Gateway and DNS addresses, leave these fields empty. Click the Next button to continue, or click the Cancel button to return to the Profiles screen.

IP Address - This IP Address must be unique to your network.

Subnet Mask - The Adapter’s Subnet Mask must be the same as your wired network’s Subnet Mask.

Default Gateway - Enter the IP address of your network’s Gateway here.

DNS 1 and DNS 2 - Enter the DNS address of your wired Ethernet network here.

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Figure 6-14: Enter Profile Name

Figure 6-15: Network Settings for New Profile

Dual-Band Wireless A+G PCI Adapter

4. The Wireless Network screen will appear. Select 2.4GHz or 5GHz if you will connect to 802.11a or 802.11g networks. Select 5GHz only if you will only connect to 802.11a networks. Select 2.4GHz only if you will only connect to 802.11g networks. Click the Next button.

5. The Wireless Mode screen shows a choice of two wireless modes. Click the Infrastructure Mode radio button if you want your wireless computers to communicate with computers on your wired network via a wireless access point. Click the Ad-Hoc Mode radio button if you want multiple wireless computers to communicate directly with each other. Enter the SSID for your network.

Figure 6-16: Wireless Network for New Profile

Click the Next button to continue or the Back button to return to the previous screen.

Infrastructure Mode - This mode allows wireless and wired networks to communicate through an access

point.

Ad-Hoc Mode - This mode allows wireless-equipped computers to communicate directly with each other. No access point is used.

SSID - This is the network name that must be used for all the devices in your wireless network. It is casesensitive and should be a unique name to help prevent others from entering your network.

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Figure 6-17: Wireless Mode for New Profile

Dual-Band Wireless A+G PCI Adapter

6. If you chose Infrastructure Mode, go to Step 7 now. If you chose Ad-Hoc Mode, the Ad-Hoc Mode Settings screen will appear.

Click the Next button. Click the Back button to change any settings.

Figure 6-18: Ad-Hoc Mode Settings for New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

7. If you don’t want to use encryption, select Disabled. Then, click the Next button and proceed to Step 9.

8. Proceed to the appropriate section for your security method: WEP, WPA-Personal, WPA-Enterprise, RADIUS, or LEAP.

WEP

802.11a networking).

Passphrase - Enter a passphrase in the Passphrase field, so a WEP key is automatically generated. It is case- sensitive and should not be longer than 16 alphanumeric characters. This passphrase must match the passphrase of your other wireless network devices and is compatible with Linksys wireless products only. (If you have any non-Linksys wireless products, enter the WEP key manually on those products.)

Advanced Users TX Key - The default transmit key number is 1. If your network’s access point or wireless router uses transmit

key number 2, 3, or 4, select the appropriate number from the TX Key drop-down box.

Authentication -The default is set to Auto, so it will auto-detect for Shared Key or Open System authentication. For Shared Key authentication, both the sender and the recipient share a WEP key for authentication. For Open System authentication, the sender and the recipient do not share a WEP key for authentication. If you are not sure which authentication method to select, keep the default, Auto.

Click the Next button to continue, or click the Back button to return to the previous screen.

Figure 6-19: Wireless Security for New Profile

Figure 6-20: Wireless Security - WEP for New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

WPA Personal

WPA Personal offers two encryption methods, TKIP and AES, with dynamic encryption keys. Select TKIP or

AES for encryption. Then enter a Passphrase that is 8-63 characters in length.

Encryption - Select the type of algorithm you want to use, TKIP or AES, from the Encryption drop-down

menu.

Passphrase - Enter a Passphrase, also called a pre-shared key, of 8-63 characters in the Passphrase field. The longer and more complex your Passphrase is, the more secure your network will be.

Click the Next button to continue or the Back button to return to the previous screen.

Figure 6-21: Wireless Security - WPA Personal for

New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

WPA Enterprise

Authentication - Select the authentication method your network is using, EAP-TLS or PEAP.

EAP-TLS

Click the Next button to continue or the Back button to return to the previous screen.

PEAP

Click the Next button to continue or the Back button to return to the previous screen.

Figure 6-22: Wireless Security - WPA Enterprise Using

EAP-TLS for New Profile

Figure 6-23: Wireless Security - WPA Enterprise Using

EAP-PEAP for New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

RADIUS

RADIUS features use of a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) RADIUS offers two authentication types: EAP-TLS and PEAP.

Authentication - Select the authentication method your network is using, EAP-TLS or PEAP.

EAP-TLS

Click the Next button to continue or the Back button to return to the previous screen.

PEAP

Click the Next button to continue or the Back button to return to the previous screen.

Figure 6-24: Wireless Security - RADIUS Using EAP-TLS

for New Profile

Figure 6-25: Wireless Security - RADIUS Using PEAP for

New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

LEAP

If you selected LEAP, then enter the Username and Password that will authenticate you on your wireless network.

Username - Enter the username used for authentication.

Password - Enter the password used for authentication.

Confirm - Enter the password again.

Click the Next button to continue, or click the Back button to return to the previous screen.

9. The Confirm New Settings screen will appear next and show the new settings. To save the new settings, click the Save button. To edit the new settings, click the Back button. To exit the Wireless Network Monitor, click

Exit.

Figure 6-26: Wireless Security - LEAP for New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Figure 6-27: Confirm New Settings for New Profile

Dual-Band Wireless A+G PCI Adapter

10. The Congratulations screen will appear next. Click Connect to Network to implement the new settings immediately and return to the Link Information screen. Click Return to Profiles Screen to keep the current settings active and return to the Profiles screen.

You have successfully created a connection profile.

Figure 6-28: Congratulations for New Profile

Chapter 6: Using the Wireless Network Monitor Creating a New Profile

Dual-Band Wireless A+G PCI Adapter

Appendix A: Troubleshooting

This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” This appendix provides solutions to problems that may occur during the installation and operation of the Dual-Band Wireless A+G PCI Adapter. Read the description below to solve your problems. If you can't find an answer here, check the Linksys website at www.linksys.com.

Common Problems and Solutions

1. My computer does not recognize the Dual-Band Wireless A+G PCI Adapter.

Make sure that the Adapter is properly inserted into the CardBus slot.

2. The Dual-Band Wireless A+G PCI Adapter does not work properly.

Follow the steps below until the problem is solved:

• Reinsert the Adapter into the notebook’s CardBus slot.

• Click Start and select Settings. Click Control Panel. Double-click System. Click the Hardware tab. Click

the Device Manager button. You will find the Dual-Band Wireless A+G PCI Adapter if it is installed successfully. If not, remove the Adapter and uninstall the driver software from your notebook. Then restart your PC and repeat the setup and installation instructions specified in this User Guide.

3. I cannot communicate with the other computers linked via Ethernet in the Infrastructure configuration.

Follow the steps below until the problem is solved:

• Make sure that the notebook is powered on.

• Make sure that the Adapter is configured with the same SSID and security settings as the other

computers in the Infrastructure configuration.

Appendix A: Troubleshooting Common Problems and Solutions

Dual-Band Wireless A+G PCI Adapter

Frequently Asked Questions

Can I run an application from a remote computer over the wireless network?

This will depend on whether or not the application is designed to be used over a network. Consult the application’s user guide to determine if it supports operation over a network.

Can I play computer games with other members of the wireless network?

Yes, as long as the game supports multiple players over a LAN (local area network). Refer to the game’s user guide for more information.

What is the IEEE 802.11a standard?

It is one of the IEEE standards for wireless networks. The 802.11a standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11a standard. The 802.11a standard states a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz.

What is the IEEE 802.11b standard?

It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11b standard. The 802.11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.

What is the IEEE 802.11g standard?

It is one of the IEEE standards for wireless networks. The 802.11g standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11g standard. The 802.11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2.4GHz.

What IEEE 802.11a features are supported?

The product supports the following IEEE 802.11a functions:

• OFDM protocol

• Multi-Channel Roaming

• Automatic Rate Selection

• RTS/CTS feature

• Fragmentation

Appendix A: Troubleshooting Frequently Asked Questions

Dual-Band Wireless A+G PCI Adapter

What IEEE 802.11b features are supported?

The product supports the following IEEE 802.11b functions:

• CSMA/CA plus Acknowledge protocol

• Multi-Channel Roaming

• Automatic Rate Selection

• RTS/CTS feature

• Fragmentation

• Power Management

What IEEE 802.11g features are supported?

The product supports the following IEEE 802.11g functions:

• CSMA/CA plus Acknowledge protocol

• OFDM protocol

• Multi-Channel Roaming

• Automatic Rate Selection

• RTS/CTS feature

• Fragmentation

• Power Management

What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other. The ad-hoc wireless network will not communicate with any wired network.

What is infrastructure mode?

When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a wired network through a wireless access point.

What is roaming?

Roaming is the ability of a portable computer to communicate continuously while it and its user are moving freely throughout an area greater than that covered by a single access point. Before using the roaming function, the user must make sure that the workstation is set to the same channel number used by the access point of the dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message. Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access

Appendix A: Troubleshooting Frequently Asked Questions

Dual-Band Wireless A+G PCI Adapter

point and the distance of each access point to the wired backbone. Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in touch with the original access point or whether it should seek a new one. When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

What is ISM band?

The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum?

Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).

What is DSSS? What is FHSS? And what are their differences?

Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct-Sequence SpreadSpectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers.

Would the information be intercepted while transmitting on air?

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. On the software side, WLAN offers the encryption function (WEP) to enhance security and access control.

Appendix A: Troubleshooting Frequently Asked Questions

Dual-Band Wireless A+G PCI Adapter

What is WEP?

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a shared key algorithm, as described in the IEEE 802.11 standard. For more information, refer to “Appendix B: Wireless Security.”

What is WPA?

WPA is Wi-Fi Protected Access, a wireless security protocol that can be used in conjunction with a RADIUS server. For more information, refer to “Appendix B: Wireless Security.”

What is RADIUS?

RADIUS is Remote Authentication Dial-In User Service, which uses an authentication server to control network access. For more information, refer to “Appendix B: Wireless Security.”

Appendix A: Troubleshooting Frequently Asked Questions

Dual-Band Wireless A+G PCI Adapter

Appendix B: Wireless Security

Linksys wants to make wireless networking as safe and easy for you as possible. The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation. So, keep the following in mind whenever you are setting up or using your wireless network.

Security Precautions

The following is a complete list of security precautions to take (as shown in this User Guide) (at least steps 1 through 5 should be followed):

1. Change the default SSID.

2. Disable SSID Broadcast.

3. Change the default password for the Administrator account.

4. Enable MAC Address Filtering.

5. Change the SSID periodically.

Note: Some of these security features are available only through the network router or access point. Refer to the router or access point’s documentation for more information.

6. Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce your network performance.

7. Change the WEP encryption keys periodically.

To ensure network security, steps one through five should be followed, at least.

Security Threats Facing Wireless Networks

Wireless networks are easy to find. Hackers know that in order to join a wireless network, wireless networking products first listen for “beacon messages”. These messages can be easily decrypted and contain much of the network’s information, such as the network’s SSID (Service Set Identifier). Here are the steps you can take:

Change the administrator’s password regularly. With every wireless networking device you use, keep in mind that network settings (SSID, WEP keys, etc.) are stored in its firmware. Your network administrator is the only person who can change network settings. If a hacker gets a hold of the administrator’s password, he, too, can change those settings. So, make it harder for a hacker to get that information. Change the administrator’s password regularly.

Appendix B: Wireless Security Security Precautions

Dual-Band Wireless A+G PCI Adapter

SSID. There are several things to keep in mind about the SSID:

1. Disable Broadcast

2. Make it unique

3. Change it often

Most wireless networking devices will give you the option of broadcasting the SSID. While this option may be more convenient, it allows anyone to log into your wireless network. This includes hackers. So, don’t broadcast the SSID.

Wireless networking products come with a default SSID set by the factory. (The Linksys default SSID is “linksys”.) Hackers know these defaults and can check these against your network. Change your SSID to something unique and not something related to your company or the networking products you use.

Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in.

MAC Addresses. Enable MAC Address filtering. MAC Address filtering will allow you to provide access to only those wireless nodes with certain MAC Addresses. This makes it harder for a hacker to access your network with a random MAC Address.

WEP Encryption. Wired Equivalent Privacy (WEP) is often looked upon as a cure-all for wireless security concerns. This is overstating WEP’s ability. Again, this can only provide enough security to make a hacker’s job more difficult.

There are several ways that WEP can be maximized:

1. Use the highest level of encryption possible

2. Use “Shared Key” authentication

3. Change your WEP key regularly

WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. Two modes are available: Pre-Shared Key and RADIUS. Pre-Shared Key gives you a choice of two encryption methods: TKIP (Temporal Key Integrity Protocol), which utilizes a stronger encryption method and incorporates Message Integrity Code (MIC) to provide protection against hackers, and AES (Advanced Encryption System), which utilizes a symmetric 128-Bit block data encryption. RADIUS (Remote Authentication Dial-In User Service) utilizes a RADIUS server for authentication and the use of dynamic TKIP, AES, or WEP.

Appendix B: Wireless Security Security Threats Facing Wireless Networks

Important: Always remember that each device in your wireless network MUST use the same encryption method and encryption key or your wireless network will not function properly.

Dual-Band Wireless A+G PCI Adapter

WPA Pre-Shared Key. If you do not have a RADIUS server, select the type of algorithm, TKIP or AES, enter a

password in the Pre-Shared key field of 8-64 characters, and enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the Router or other device how often it should change the encryption keys.

WPA RADIUS. WPA used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router or other device.) First, select the type of WPA algorithm, TKIP or AES. Enter the RADIUS server’s IP Address and port number, along with a key shared between the device and the server. Last, enter a Group Key Renewal period, which instructs the device how often it should change the encryption keys.

RADIUS. WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router or other device.) First, enter the RADIUS server’s IP Address and port number, along with a key shared between the device and the server. Then, select a WEP key and a level of WEP encryption, and either generate a WEP key through the Passphrase or enter the WEP key manually.

Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting sensitive data over your network, encryption should be used.

These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer.

Appendix B: Wireless Security Security Threats Facing Wireless Networks

Dual-Band Wireless A+G PCI Adapter

Appendix C: Windows Help

Almost all wireless products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier. These features can be accessed through Windows Help and are described in this appendix.

TCP/IP

Before a computer can communicate with an access point or wireless router, TCP/IP must be enabled. TCP/IP is a set of instructions, or protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete instructions on enabling TCP/IP.

Shared Resources

If you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on utilizing shared resources.

Network Neighborhood/My Network Places

Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the version of Windows you're running). Windows Help provides complete instructions on adding PCs to your network.

Appendix C: Windows Help

Dual-Band Wireless A+G PCI Adapter

Appendix D: Glossary

802.11a - A networking standard that specifies a maximum data transfer rate of 54Mbps and an operating

frequency of 5GHz.

802.11b - A networking standard that specifies a maximum data transfer rate of 11Mbps and an operating

frequency of 2.4GHz.

802.11g - A networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency

of 2.4GHz, and backward compatibility with 802.11b devices.

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.

Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of

an access point.

AES (Advanced Encryption Standard) - A method that uses up to 256-bit key encryption to secure data.

Backbone - The part of a network that connects most of the systems and networks together, and handles the

most data.

Bandwidth - The transmission capacity of a given device or network.

Beacon Interval - Data transmitted on your wireless network that keeps the network synchronized.

Bit - A binary digit.

Boot - To start a device and cause it to start executing instructions.

Buffer - A shared or assigned memory area that is used to support and coordinate different computing and

networking activities so one isn't held up by the other.

Byte - A unit of data that is usually eight bits long

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - A method of data transfer that is used to prevent

data collisions.

Appendix D: Glossary

Dual-Band Wireless A+G PCI Adapter

CTS (Clear To Send) - A signal sent by a wireless device, signifying that it is ready to receive data.

DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or e-mail server with a

fixed domain name (e.g., www.xyz.com) and a dynamic IP address.

Default Gateway - A device that forwards Internet traffic from your local area network.

DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign

temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time, instead of assigning permanent IP addresses.

DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP addresses.

Domain - A specific name for a network of computers.

Download - To receive a file transmitted over a network.

DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.

DSSS (Direct-Sequence Spread-Spectrum) - Frequency transmission with a redundant bit pattern resulting in a

lower probability of information being lost in transit.

DTIM (Delivery Traffic Indication Message) - A message included in data packets that can increase wireless efficiency.

Dynamic IP Address - A temporary IP address assigned by a DHCP server.

EAP (Extensible Authentication Protocol) - A general authentication protocol used to control network access.

Many specific authentication methods work within this framework.

EAP-PEAP (Extensible Authentication Protocol-Protected Extensible Authentication Protocol) - A mutual authentication method that uses a combination of digital certificates and another system, such as passwords.

EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) - A mutual authentication method that uses digital certificates.

Encryption - Encoding data transmitted in a network.

Ethernet - IEEE standard network protocol that specifies how data is placed on and retrieved from a common

transmission medium.

Appendix D: Glossary

Dual-Band Wireless A+G PCI Adapter

Fragmentation -Breaking a packet into smaller units when transmitting over a network medium that cannot

support the original size of the packet.

FTP (File Transfer Protocol) - A protocol used to transfer files over a TCP/IP network.

Full Duplex - The ability of a networking device to receive and transmit data simultaneously.

Gateway - A device that interconnects networks with different, incompatible communications protocols.

Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a

time.

Hardware - The physical aspect of computers, telecommunications, and other information technology devices.

HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World

Wide Web.

Infrastructure - A wireless network that is bridged to a wired network via an access point.

IP (Internet Protocol) - A protocol used to send data over a network.

IP Address - The address used to identify a computer or device on a network.

IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device.

IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer.

ISM band - Radio bandwidth utilized in wireless transmissions.

LEAP (Lightweight Extensible Authentication Protocol) - A mutual authentication method that uses a username

and password system.

MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking device.

Mbps (MegaBits Per Second) - One million bits per second; a unit of measurement for data transmission.

mIRC - An Internet Relay Chat program that runs under Windows.

Multicasting - Sending data to a group of destinations at once.

Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or

transmission between users.

Appendix D: Glossary

Dual-Band Wireless A+G PCI Adapter

NNTP (Network News Transfer Protocol) - The protocol used to connect to Usenet groups on the Internet.

Node - A network junction or connection point, typically a computer or work station.

OFDM (Orthogonal Frequency Division Multiplexing) - Frequency transmission that separates the data stream

into a number of lower-speed data streams, which are then transmitted in parallel to prevent information from being lost in transit.

Packet - A unit of data sent over a network.

Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically

generating the WEP encryption keys for Linksys products.

Preamble - Part of the wireless signal that synchronizes network traffic.

RADIUS (Remote Authentication Dial-In User Service) - A protocol that uses an authentication server to control

network access.

Roaming - The ability to take a wireless device from one access point's range to another without losing the connection.

Router - A networking device that connects multiple networks together.

RTS (Request To Send) - A networking method of coordinating large packets through the RTS Threshold setting.

Server - Any computer whose function in a network is to provide user access to files, printing, communications,

and other services.

SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.

SNMP (Simple Network Management Protocol) - A widely used network monitoring and control protocol.

Software - Instructions for the computer. A series of instructions that performs a particular task is called a

“program”.

Spread Spectrum - Wideband radio frequency technique used for more reliable and secure data transmission.

SSID (Service Set IDentifier) - Your wireless network's name.

Static IP Address - A fixed address assigned to a computer or device that is connected to a network.

Static Routing - Forwarding data in a network via a fixed path.

Appendix D: Glossary

Dual-Band Wireless A+G PCI Adapter

Subnet Mask - An address code that determines the size of the network.

TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement

from the recipient of data sent.

TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a network.

Teln et - A user command and TCP/IP protocol used for accessing remote PCs.

TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password

capability.

Throughput - The amount of data moved successfully from one node to another in a given time period.

TKIP (Temporal Key Integrity Protocol) - a wireless encryption protocol that provides dynamic encryption keys for

each packet transmitted.

Topology - The physical layout of a network.

TX Rate - Transmission Rate.

UDP (User Datagram Protocol) - A network protocol for transmitting data that does not require acknowledgement

from the recipient of the data that is sent.

Upgrade - To replace existing software or firmware with a newer version.

Upload - To transmit a file over a network.

WAN (Wide Area Network)- The Internet.

WEP (Wired Equivalent Privacy) - A method of encrypting network data transmitted on a wireless network for

greater security.

WLAN (Wireless Local Area Network) - A group of computers and associated devices that communicate with each other wirelessly.

WPA (Wi-Fi Protected Access) - A wireless security protocol using TKIP (Temporal Key Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server.

Appendix D: Glossary

Dual-Band Wireless A+G PCI Adapter

Appendix E: Specifications

Model WMP55AG

Standards IEEE 802.11a, 802.11b, 802.11g

Interface PCI

LEDs ACT

Transmit Power Up to 19 dBm

Modulation 802.11a and 802.11g: OFDM; 802.11b: CCK, DQPSK, DBPSK

Security Features WPA, LEAP, WEP

WEP Key Bits 64, 128, 152 Bits

Warranty 3-Year Limited

Dimensions 6.30" x 8.46" x 0.83" (160 mm x 215 mm x 21 mm)

Unit Weight 2.40 oz. (0.068 kg)

Power 3.3V

Certifications FCC, Wi-Fi, WHQL

Operating Temp. 0 ~ 55°C (32 ~ 131°F)

Storage Temp. -20 ~ 85°C (-4 ~ 185°F)

Operating Humidity 10% to 85% Non-Condensing

Storage Humidity 5% to 90% Non-Condensing

Appendix E: Specifications

Dual-Band Wireless A+G PCI Adapter

Appendix F: Warranty Information

LIMITED WARRANTY

Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates. This limited warranty extends only to the original purchaser.

If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return Authorization Number, if applicable. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. If You are requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a copy of your original proof of purchase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. You are responsible for shipping defective Products to Linksys. Linksys pays for UPS Ground shipping from Linksys back to You only. Customers located outside of the United States of America and Canada are responsible for all shipping and handling charges.

ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You. This warranty gives You specific legal rights, and You may also have other rights which vary by jurisdiction.

This warranty does not apply if the Product (a) has been altered, except by Linksys, (b) has not been installed, operated, repaired, or maintained in accordance with instructions supplied by Linksys, or (c) has been subjected to abnormal physical or electrical stress, misuse, negligence, or accident. In addition, due to the continual development of new techniques for intruding upon and attacking networks, Linksys does not warrant that the Product will be free of vulnerability to intrusion or attack.

TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT (INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL LINKSYS’ LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even if any warranty or remedy provided under this Agreement fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to You.

Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.

Appendix F: Warranty Information

Dual-Band Wireless A+G PCI Adapter

Appendix G: Regulatory Information

FCC STATEMENT

This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna

Increase the separation between the equipment or devices

Connect the equipment to an outlet other than the receiver's

Consult a dealer or an experienced radio/TV technician for assistance

FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

INDUSTRY CANADA (CANADA)

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. The use of this device in a system operating either partially or completely outdoors may require the user to obtain a license for the system according to the Canadian regulations.

EC DECLARATION OF CONFORMITY (EUROPE)

Linksys declares that this product conforms to the specifications listed below, following the provisions of the European R&TTE directive 1999/5/EC:

EN 301 489-1, 301 489-17 General EMC requirements for Radio equipment.

EN 609 50 Safety

Appendix G: Regulatory Information

Dual-Band Wireless A+G PCI Adapter

EN 300-328-1, EN 300-328-2 Technical requirements for Radio equipment.

Caution: This equipment is intended to be used in all EU and EFTA countries. Outdoor use may be restricted to certain frequencies and/or may require a license for operation. Contact local Authority for procedure to follow.

Note: Combinations of power levels and antennas resulting in a radiated power level of above 100 mW equivalent isotropic radiated power (EIRP) are considered as not compliant with the above mentioned directive and are not allowed for use within the European community and countries that have adopted the European R&TTE directive 1999/5/EC.

For more details on legal combinations of power levels and antennas, contact Linksys Corporate Compliance.

Linksys vakuuttaa täten että dieses produkt tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien näiden direktiivien muiden ehtojen mukainen.

Linksys déclare que le produit est conforme aux conditions essentielles et aux dispositions relatives à la directive 1999/5/EC.

Belgique:

Dans le cas d'une utilisation privée, à l'extérieur d'un bâtiment, au-dessus d'un espace public, aucun enregistrement n'est nécessaire pour une distance de moins de 300m. Pour une distance supérieure à 300m un enregistrement auprès de l'IBPT est requise. Pour une utilisation publique à l'extérieur de bâtiments, une licence de l'IBPT est requise. Pour les enregistrements et licences, veuillez contacter l'IBPT.

France:

2.4 GHz Bande : les canaux 10, 11, 12, 13 (2457, 2462, 2467, et 2472 MHz respectivement) sont complétement

libres d'utilisation en France (en utilisation intérieur). Pour ce qui est des autres canaux, ils peuvent être soumis à autorisation selon le départment. L'utilisation en extérieur est soumis à autorisation préalable et très restreint.

Vous pouvez contacter l'Autorité de Régulation des Télécommunications (http://www.art-telecom.fr) pour de plus amples renseignements.

Appendix G: Regulatory Information

Dual-Band Wireless A+G PCI Adapter

Appendix H: Contact Information

Need to contact Linksys? Visit us online for information on the latest products and updates to your existing products at: http://www.linksys.com or

ftp.linksys.com Can't find information about a product you want to buy on the web? Do you want to know more about networking with Linksys products? Give our advice line a call at: 800-546-5797 (LINKSYS) Or fax your request in to: 949-823-3002

If you experience problems with any Linksys product, you can call us at: 800-326-7114 Don't wish to call? You can e-mail us at: support@linksys.com

If any Linksys product proves defective during its warranty period, you can call the Linksys Return Merchandise Authorization department for obtaining a Return Authorization Number at: 949-823-3000 (Details on Warranty and RMA issues can be found in the Warranty Information section in this Guide.)

Appendix H: Contact Information

Linksys WMP55AG User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1: Introduction

Chapter 2: Planning Your Wireless Network

Chapter 3: Getting to Know the Dual-Band Wireless A+G PCI Adapter

Chapter 4: Setting up the Dual-Band Wireless A+G PCI Adapter

Chapter 5: Hardware Installation

Chapter 6: Using the Wireless Network Monitor

Appendix A: Troubleshooting

Appendix B: Wireless Security

Appendix C: Windows Help

Appendix D: Glossary

Appendix E: Specifications

Appendix F: Warranty Information

Appendix G: Regulatory Information

Appendix H: Contact Information