Linksys Network Card WUSB200 User Manual
USER GUIDE  
Wireless-G  
BUSINESS SERIES  
Business USB Network Adapter  
with RangeBooster  
Wireless  
Model No. WUSB200  
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Wireless-G Business USB Network Adapter with RangeBooster  
Table of Contents  
Welcome  
What’s in this User Guide?  
Chapter 2: Planning your Wireless Network  
Chapter 1: Introduction  
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Network Topology  
Roaming  
Network Layout  
Chapter 3: Getting to Know the Wireless-G Business USB Network Adapter  
The LED Indicators  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter 7  
Starting the Setup  
Connecting the Adapter  
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8
Setting up the Adapter  
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Chapter 5: Using the Wireless Network Monitor  
Accessing the Wireless Network Monitor  
Using the Wireless Network Monitors  
Link Information  
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Profiles  
Create a New Profile  
Editing a Profile  
Site Survey  
Troubleshooting  
Administration  
Chapter 6: The Administrative Functions in the Wireless Network Monitor  
Accessing the Wireless Network Monitor  
Using the Administrative Functions in the Wireless Network Monitor  
Classification  
Security Monitor  
Appendix A: Troubleshooting  
Common Problems and Solutions  
Frequently Asked Questions  
Appendix B: Windows XP Wireless Zero Configuration  
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Windows XP Wireless Zero Configuration  
Appendix C: Wireless Security  
Security Precautions  
Security Threats Facing Wireless Networks  
Appendix D: Windows Help  
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Appendix E: Glossary  
Appendix F: Specifications  
Appendix G: Warranty Information  
Appendix H: Regulatory Information  
Appendix I: Contact Information  
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List of Figures  
Figure 4-1: Setup Wizard’s Welcome Screen  
Figure 4-2: Setup Wizard’s License Agreement  
Figure 4-3: Connecting the Adapter  
Figure 3-1: LEDs  
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Figure 4-4: Available Wireless Network  
Figure 4-5: WEP  
Figure 4-6: WPA - Personal  
Figure 4-7: WPA2 - Personal  
Figure 4-8: Confirm New Settings  
Figure 4-9: Congratulations  
Figure 4-10: Creating a Profile  
Figure 4-11: Network Settings - Wireless Mode  
Figure 4-12: Ad-Hoc Mode Settings  
Figure 4-13: Wireless Security - WEP  
Figure 4-14: Wireless Security - WPA Personal  
Figure 4-15: Wireless Security - WPA2 Personal  
Figure 4-16: Wireless Security - WPA Enterprise-EAP-TLS  
Figure 4-17: Wireless Security - WPA Enterprise-PEAP  
Figure 4-18: Wireless Security - WPA2 Enterprise-EAP  
Figure 4-19: Wireless Security - WPA2 Enterprise-PEAP  
Figure 4-20: Wireless Security - RADIUS - EAP-TLS  
Figure 4-21: Wireless Security - RADIUS - PEAP  
Figure 4-22: Wireless Security - LEAP  
Figure 4-23: Congratulations Screen  
Figure 5-1: Wireless Network Monitor Icon  
Figure 5-2: Link Information - Connection  
Figure 5-3: Link Information - Wireless Network Status  
Figure 5-4: Link Information - Wireless Network Statistics  
Figure 5-5: Profiles  
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Figure 5-6: Import a Profile  
Figure 5-7: Export a Profile  
Figure 5-8: Creating a Profile - Available Wireless Network  
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Figure 5-9: Creating a Profile - WEP Key Needed  
Figure 5-10: Creating a Profile - WPA-Personal  
Figure 5-11: Creating a Profile - Congratulations  
Figure 5-12: Creating a Profile - Manual Setup - Network Settings  
Figure 5-13: Creating a Profile - Manual Setup - Wireless Mode  
Figure 5-14: Creating a Profile - Manual Setup - Wireless Security - Disabled  
Figure 5-15: Creating a Profile - Manual Setup - Wireless Security - WEP  
Figure 5-16: Creating a Profile - Manual Setup - Wireless Security - WPA Personal  
Figure 5-17: Creating a Profile - Manual Setup - Wireless Security - WPA2 Personal  
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Figure 5-18: Creating a Profile - Manual Setup - Wireless Security - WPA Enterprise - EAP-TLS 28  
Figure 5-19: Creating a Profile - Manual Setup - Wireless Security - WPA Enterprise - PEAP 28  
Figure 5-20: Creating a Profile - Manual Setup - Wireless Security - WPA2 Enterprise - EAP-TLS 29  
Figure 5-21: Creating a Profile - Manual Setup - Wireless Security - WPA2 Enterprise - PEAP  
Figure 5-22: Creating a Profile - Manual Setup - Wireless Security - RADIUS - EAP-TLS  
Figure 5-23: Creating a Profile - Manual Setup - Wireless Security - RADIUS - PEAP  
Figure 5-24: Creating a Profile - Manual Setup - Wireless Security - LEAP  
Figure 5-25: Creating a Profile - Manual Setup - Confirm New Settings  
Figure 5-26: Creating a Profile - Manual Setup - Congratulations  
Figure 5-27: Editing a Profile  
Figure 5-28: Editing a Profile - Wireless Mode  
Figure 5-29: Editing a Profile - Ad Hoc Mode  
Figure 5-30: Editing a Profile - Wireless Security  
Figure 5-31: Editing a Profile - Wireless Security - WEP  
Figure 5-32: Editing a Profile - Wireless Security - WPA Personal  
Figure 5-33: Editing a Profile - Wireless Security -WPA2 Personal  
Figure 5-34: Editing a Profile - Wireless Security - WPA Enterprise - EAP-TLS  
Figure 5-35: Editing a Profile - Wireless Security - WPA Enterprise - PEAP  
Figure 5-36: Editing a Profile - Wireless Security -WPA2 Enterprise - EAP-TLS  
Figure 5-37: Editing a Profile - Wireless Security - WPA2 Enterprise - PEAP  
Figure 5-38: Editing a Profile - Wireless Security - RADIUS - EAP-TLS  
Figure 5-39: Editing a Profile - Wireless Security - RADIUS - PEAP  
Figure 5-40: Editing a Profile - Wireless Security - LEAP  
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Figure 5-41: Editing a Profile - Network Settings  
Figure 5-42: Editing a Profile - Confirm New Settings  
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Figure 5-43: Editing a Profile - Congratulations  
Figure 5-44: Site Survey  
Figure 5-45: Troubleshooting  
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Figure 5-46: Administration  
Figure 5-47: Administration - Login Access Point Account  
Figure 5-48: Administration - Modify Access Point Account  
Figure 5-49: Administration - Security Monitor Account  
Figure 6-1: Wireless Network Monitor Icon  
Figure 6-2: Administration - Login Security Monitor Administration - Login  
Security Monitor Account  
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Figure 6-3: Classification  
Figure 6-4: AP Classification  
Figure 6-5: Client Classification  
Figure 6-6: Trusted Mac Address  
Figure 6-7: Allowed SSID Configuration  
Figure 6-8: Allowed Vendor List Configuration  
Figure 6-9: Allowed SSID Configuration  
Figure 6-10: Allowed Channel Configuration  
Figure 6-11: Security Monitor - Channel Usage  
Figure 6-12: Security Monitor - AP Inventory  
Figure 6-13: Security Monitor - Client Inventory  
Figure 6-14: Security Monitor - Alerts Summary  
Figure 6-15: Security Monitor - POP-UP Alert  
Figure 6-16: Security Monitor - Alert List  
Figure 6-17: Alert Details  
Figure 6-18: Security Monitor - Alert Advice  
Figure 6-19: Security Monitor - Windows Firewall Screen  
Figure B-1: Wireless Network Monitor Icon  
Figure B-2: Windows XP - Use Windows XP Wireless Configuration  
Figure B-3: Windows XP Wireless Zero Configuration Icon  
Figure B-4: Available Wireless Network  
Figure B-5: No Wireless Security  
Figure B-6: Network Connection - Wireless Security  
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Chapter 1: Introduction  
Welcome  
adapter: a device that adds network functionality  
to your PC.  
Thank you for choosing the Wireless-G Business USB Network Adapter. Setting up your network and your  
Wireless-G Business USB Network Adapter is easier than ever.  
The Wireless-G USB Network Adapter is the simple way to add or upgrade wireless connectivity in your computer.  
Just connect it into your computer's USB port and enjoy incredible high-speed wireless network access while not  
having to run cable wires.  
network: a series of computers or devices  
connected for the purpose of data sharing,  
storage, and/or transmission between users.  
RangeBooster technology increases your wireless network's range up to two times, and its throughput by up to  
35%. Unlike ordinary wireless technologies that are confused by signal reflections, RangeBooster uses two  
smart receivers at each end to detect and decode reflected signals at distances where standard technologies  
give up. You'll find that "dead spots" in the wireless coverage area are reduced, too.  
802.11g: a wireless networking standard that  
specifies a maximum data transfer rate of 54Mbps  
and an operating frequency of 2.4GHz.  
But what does all of this mean?  
802.11b: a wireless networking standard that  
specifies a maximum data transfer rate of 11Mbps  
and an operating frequency of 2.4GHz.  
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.  
Once you're connected, you can keep in touch with your e-mail, access the Internet, and share files and other  
resources such as printers and network storage with other computers on the network, wherever your work takes  
you, without cables.  
encryption: encoding data transmitted in a network  
The Advanced security features makes this solution ideal for your business. Advanced wireless security using Wi-  
Fi Protected Access™ (WPA2 Enterprise) with up to 256-bit encryption, and the new Wireless Security Monitoring  
functionality gives your business the visibility and protection it needs. When used with a Linksys WAP200, the  
Wireless Security Monitoring alerts you of possible wireless intruders and vulnerabilities in the wireless network  
deployment.  
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 and connect the Adapter using the Setup Wizard. These  
instructions should be all you need to get the most out of the Adapter.  
Chapter 1: Introduction  
Welcome  
1
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What’s in this User Guide?  
This user guide covers the steps for setting up and using the Wireless-G Business USB Network Adapter.  
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Chapter 1: Introduction  
This chapter describes the Adapter’s applications and this User Guide.  
Chapter 2: Planning Your Wireless Network  
This chapter discusses a few of the basics about wireless networking.  
Chapter 3: Getting to Know the Wireless-G Business USB Network Adapter  
This chapter describes the physical features of the Adapter.  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
This chapter instructs you on how to install and configure the Adapter.  
Chapter 5: Using the Wireless Network Monitor  
This chapter shows you how to use the Adapter’s Wireless Network Monitor.  
Chapter 6: Administration Functions in the Network Monitor  
This chapter shows you how to use the administration features of the Adapter’s Wireless Network Monitor.  
Appendix A: Troubleshooting  
This appendix describes some problems and solutions, as well as frequently asked questions, regarding  
installation and use of the Adapter.  
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•
Appendix B: Windows XP Zero Configuration  
This appendix describes how to use the Windows XP Zero Configuration.  
Appendix C: Wireless Security  
This appendix discusses security issues regarding wireless networking and measures you can take to help  
protect your wireless network.  
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Appendix D: Windows Help  
This appendix describes how you can use Windows Help for instructions about networking, such as installing  
the TCP/IP protocol.  
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•
Appendix E: Glossary  
This appendix gives a brief glossary of terms frequently used in networking.  
Appendix F: Specifications  
This appendix provides the Adapter’s technical specifications.  
Chapter 1: Introduction  
What’s in this User Guide?  
2
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•
•
Appendix G: Warranty Information  
This appendix supplies the Adapter’s warranty information.  
Appendix H: Regulatory Information  
This appendix supplies the Adapter’s regulatory information.  
Appendix I: Contact Information  
This appendix provides contact information for a variety of Linksys resources, including Technical Support.  
Chapter 1: Introduction  
What’s in this User Guide?  
3
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Chapter 2: Planning your Wireless Network  
Network Topology  
topology: the physical layout of a network.  
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 each another to form an ad-hoc network.  
access point: a device that allows wireless-  
equipped computers and other devices to  
communicate with a wired 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.  
ad-hoc: a group of wireless devices  
communicating directly with each other (peer-  
to-peer) without the use of an access point.  
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.  
infrastructure: a wireless network that is  
bridged to a wired network via an access point.  
Roaming  
roaming: the ability to take a wireless device  
from one access point's range to another without  
losing the connection.  
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, if they both share the  
same channel and SSID.  
ssid: your wireless network's name.  
Before you consider roaming, choose a feasible radio channel and optimum access point position. Proper access  
point positioning combined with a clear radio signal will greatly enhance performance.  
Chapter 2: Planning your Wireless Network  
Network Topology  
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Network Layout  
Linksys wireless access points and wireless routers have been designed for use with 802.11a, 802.11b, and  
802.11g products. With 802.11g products communicating with the 802.11b standard and some products  
incorporating both “a” and “g”, products using these standards can communicate with each other.  
Access points and wireless routers are compatible with 802.11a, 802.11b and 802.11g adapters, such as the PC  
Cards for your laptop computers, PCI Cards for your desktop PC, and USB Adapters for when you want to enjoy  
USB connectivity.  
When you wish to connect your wired network with your wireless network, the network ports on the access  
points and wireless routers can be connected to Linksys switches or routers.  
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at  
www.linksys.com for more information about wireless products.  
Chapter 2: Planning your Wireless Network  
Network Layout  
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Chapter 3: Getting to Know the Wireless-G Business USB  
Network Adapter  
The LED Indicators  
The Network Adapter's LEDs display information about network activity.  
Figure 3-1: LEDs  
Power  
Link  
Green. The Wireless LED lights up when the Adapter is powered on.  
Green. The Link/Act LED lights up when the Adapter has an active connection.  
Chapter 3: Getting to Know the Wireless-G Business USB Network Adapter  
The LED Indicators  
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Chapter 4: Setting up and Connecting the Wireless-G  
Business USB Network Adapter  
Starting the Setup  
The Wireless-G Business USB Network Adapter Setup Wizard will guide you through the installation procedure.  
The Setup Wizard will install the driver and Wireless Network Monitor, as well as connect and configure the  
Adapter.  
IMPORTANT: Do not connect the Adapter until you are instructed to  
do so or the setup will not work correctly.  
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:  
Click Here to Start- Click the Click Here to Start 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 Click Here to Start button on the Welcome screen.  
Figure 4-1: Setup Wizard’s Welcome Screen  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Starting the Setup  
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2. After reading the License Agreement, click the Next button if you agree and want to continue the installation,  
or click the Cancel button to end the installation.  
3. Windows will begin copying the files onto your PC.  
Connecting the Adapter  
Figure 4-2: Setup Wizard’s License Agreement  
1. Connect one end of the included USB cable to the Adapter’s USB port.  
2. Connect the other end of the cable to one of the USB ports on your computer.  
3. The Power LED should light up when the Adapter is plugged in.  
4. Raise the antennas. Make sure the antennas point straight up into the air, at a 90º angle from the Adapter.  
This will ensure optimum wireless operating range and performance.  
5. Click Next. It may take a minute before the next screen appears.  
Figure 4-3: Connecting the Adapter  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Connecting the Adapter  
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Setting up the Adapter  
The next screen to appear will be the Available Wireless Network screen.  
This screen provides two options for setting up the Adapter.  
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Available Wireless Network. (For most users.) Use this option if you already have a network set up. The  
networks available to this Adapter will be listed on this screen. You can choose one of these networks and  
click the Connect button to connect to it. Click the Refresh button to update the Available Wireless Network  
list.  
Manual Setup. If your network is not listed on this screen, select Manual Setup to set up the adapter  
manually. This method of setting up the Adapter is intended for Advanced Users only.  
Figure 4-4: Available Wireless Network  
The setup for each option is described, step by step, under the appropriate heading on the following pages.  
Click Exit to close the Setup Wizard, if you wish to set up the Adapter later.  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Setting up the Adapter  
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wep (wired equivalent privacy): a method of encrypting  
network data transmitted on a wireless network for greater  
security.  
Available Wireless Network  
The available networks are listed in the table on the center of the screen by SSID. Select the wireless network you  
wish to connect to and click the Connect button. (If you do not see your network listed, you can click the Refresh  
button to bring the list up again.) If the network utilizes wireless security, you will need to configure security on  
the Adapter. If not, you will be taken directly to the Congratulations screen.  
encryption: encoding data transmitted in a network.  
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.  
1. If you have wireless security enabled on your network, continue to step 2. Only One of these security screens  
will be shown. If you don’t have wireless security enabled, continue to step 3.  
2. Wireless Security  
If your network has WEP, WPA-Personal, or WPA2-Personal wireless security enabled, then that security  
screen will appear. Continue to the screen for your wireless security.  
WEP  
Figure 4-5: WEP  
If your network has the wireless security WEP (Wired Equivalent Privacy), RADIUS or LEAP enabled, this  
screen will appear. For connecting with RADIUS or LEAP, click Connect, then continue to the next section  
“Manual Setup” on page 12.  
Security - Select WEP.  
WEP - Select 64-bit or 128-bit.  
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,  
Figure 4-6: WPA - Personal  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Setting up the Adapter  
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enter exactly 10 hexadecimal characters. For 128-bit encryption, enter exactly 26 hexadecimal characters.  
Valid hexadecimal characters are “0” to “9” and “A” to “F”.  
Then click Connect and proceed to Step 3.  
WPA-Personal  
If your network has the wireless security WPA-Personal (Wi-Fi Protected Access) enabled, this screen will  
appear.  
Passphrase - Enter a Passphrase, also called a Pre-shared Key, of 8-63 characters in the Passphrase field.  
Figure 4-7: WPA2 - Personal  
Then click Connect and proceed to Step 3.  
WPA2-Personal  
If your network has the wireless security WPA2-Personal enabled, this screen will appear.  
Passphrase - Enter a Passphrase, also called a Pre-shared Key, of 8-63 characters in the Passphrase field.  
Then click Connect and proceed to Step 3.  
Figure 4-8: Confirm New Settings  
3. The Confirm New Settings screen will appear next and show the new settings. To save the new settings, click  
the Save button.  
Figure 4-9: Congratulations  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Setting up the Adapter  
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To edit the new settings, click the Back button. To exit the Manual Setup through the Wireless Network  
Monitor, click Exit.  
4. After the software has been successfully installed, the Congratulations screen will appear. Click Connect to  
Network to connect to your network and return to the Link Information screen.  
Click Return to Profile Screen to keep the current settings active and return to the Profiles screen.  
For more information about the Wireless Network Monitor, refer to Chapter 5: Using the Wireless Network  
Monitor.  
Congratulations! The installation of the Wireless-G Business USB Network Adapter is complete.  
To check the link information, search for available wireless networks, or make additional configuration  
changes, proceed to Chapter 5: Using the Wireless Network Monitor.  
Figure 4-10: Creating a Profile  
Manual Setup  
If your network is not listed with the available networks, you can use Manual Setup.  
1. Click Manual Setup on the Available Wireless Network screen to set up the adapter manually.  
2. The Network Settings screen from the Wireless Network Monitor will appear. If your network has a router or  
other DHCP server, click the radio button next to Obtain network settings automatically (DHCP).  
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.  
Figure 4-11: Network Settings - Wireless Mode  
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.  
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Setting up the Adapter  
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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.  
Click the Next button to continue, or click the Back button to return to the previous screen.  
3. The Wireless Mode screen shows a choice of two wireless modes. Click the Infrastructure Mode radio  
button if you want to connect to a wireless router or access point. Click the Ad-Hoc Mode radio button if you  
want to connect to another wireless device directly without using a wireless router or access point. Enter the  
SSID for your network.  
Infrastructure Mode - Use this mode if you want to connect to a wireless router or access point.  
Figure 4-12: Ad-Hoc Mode Settings  
Ad-Hoc Mode - Use this mode if you want to connect to another wireless device directly without using a  
wireless router or access point.  
encryption: encoding data transmitted in a network.  
SSID - This is the wireless network name that must be used for all the devices in your wireless network. It is  
case-sensitive and should be a unique name to help prevent others from entering your network.  
wep (wired equivalent privacy): a method of encrypting  
network data transmitted on a wireless network for greater  
security.  
Click the Next button to continue, or click the Back button to return to the previous screen.  
4. If you chose Infrastructure Mode, go to Step 5 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.  
Click the Next button. Click the Back button to change any settings.  
5. If your wireless network does not have wireless security, select Disabled and then click the Next button to  
continue. Proceed to Step 6.  
If your wireless network has wireless security, select the method of security used: WEP, WPA/WPA2-  
Figure 4-13: Wireless Security - WEP  
Personal, WPA/WPA2-Enterprise, RADIUS, or LEAP. WEP stands for Wired Equivalent Privacy, and WPA  
Chapter 4: Setting up and Connecting the Wireless-G Business USB Network Adapter  
Setting up the Adapter  
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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.  
stands for Wi-Fi Protected Access. WPA uses a stronger security method than WEP and WPA2 defines an even  
stronger encryption, authentication, and key management than WPA. RADIUS stands for Remote  
Authentication Dial-In User Service. LEAP stands for Lightweight Extensible Authentication Protocol. It uses  
username and password-based authentication between a wireless client and a RADIUS server. Click the Next  
button to continue or the Back button to return to the previous screen.  
wpa2 offers a stronger encryption than wpa by using the  
AES (Advanced Encryption Standard) which is a block cipher  
with block sizes of 128, 192 or 256 bits.  
Proceed to the appropriate section for your security method: WEP, WPA/WPA2-Personal, WPA/WPA2-  
Enterprise, RADIUS, or LEAP.  
WEP - Select 64-bit or 128-bit encryption  
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.)  
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.  
Valid hexadecimal characters are “0” to “9” and “A” to “F”.  
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 4-14: Wireless Security - WPA Personal  
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.  
WPA Personal  
WPA Personal offers two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2 only uses  
AES for encryption. Select TKIP or AES for encryption for WPA Personal. Then enter a Passphrase that is 8-63  
characters in length.  
Figure 4-15: Wireless Security - WPA2 Personal  
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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.  
Click the Next button to continue or the Back button to return to the previous screen.  
WPA2 Personal  
Enter a Pre-shared Key that is 8-63 characters in length.  
Pre-shared Key - Enter a Pre-shared Key of 8-63 characters in the Pre-shared Key field.  
Figure 4-16: Wireless Security - WPA Enterprise-EAP-  
TLS  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 4-17: Wireless Security - WPA Enterprise-PEAP  
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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, EAP-  
TLS and PEAP, as well as two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2  
Enterprise offers two authentication methods, EAP-TLS and PEAP, but only AES encryption method can be  
used.  
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.  
Figure 4-18: Wireless Security - WPA2 Enterprise-EAP  
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).  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 4-19: Wireless Security - WPA2 Enterprise-PEAP  
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WPA2 Enterprise  
WPA2 Enterprise features WPA2 security used in coordination with a RADIUS server. (This should only be used  
when a RADIUS server is connected to the Router.) WPA2 Enterprise offers two authentication methods, EAP-  
TLS and PEAP.  
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.  
Figure 4-20: Wireless Security - RADIUS - EAP-TLS  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 4-21: Wireless Security - RADIUS - PEAP  
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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  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
PEAP  
Figure 4-22: Wireless Security - LEAP  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
LEAP  
Lightweight Extensible Authentication Protocol is a mutual authentication method that uses a user name and  
password based system.  
Login method - Select the login method your network is using, Manual Login or Windows Login.  
If you select manual login, enter the username and password in the username and password field  
accordingly. Enter the password again in the confirm filed.  
6. The Congratulations screen will appear next. Click Connect to Network to implement the new settings and  
return to the Link Information screen. Click Return to Profile screen to return to the Creating a Profile  
screen.  
Figure 4-23: Congratulations Screen  
Congratulations! Your manual setup through the Wireless Network Monitor is complete.  
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Chapter 5: Using the Wireless Network Monitor  
Use the Wireless Network Monitor to check the link information, set up profiles of your wireless settings, search  
for available wireless networks, troubleshoot your wireless connections, or administer the accounts that hold  
privileges to access the Security Monitor.  
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.  
Figure 5-1: Wireless Network Monitor Icon  
Using the Wireless Network Monitors  
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 perform  
configuration changes or create connection profiles by clicking the Profiles tab. To view the available wireless  
networks, click the Site Survey tab. To troubleshoot the current connections or view the FAQ pages, click the  
Troubleshooting tab. To perform the administrative tasks of the account information or specify email alert  
addresses, click the Administration tab.  
Link Information  
The Connection screen of the Link Information tab displays signal strength and link quality information of the  
current connection. It also provides tabs to click for additional connection information.  
Signal Strength - The Signal Strength bar indicates signal strength from low to high; low is red, medium is  
yellow and high is green.  
Link Quality - The Link Quality bar indicates the quality of the wireless network connection from low to high; low  
is red, medium is yellow and high is green.  
Click the Status or Statistics tabs to view additional information about the wireless network connection.  
Figure 5-2: Link Information - Connection  
Chapter 5: Using the Wireless Network Monitor  
Accessing the Wireless Network Monitor  
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Status  
Click the Status tab to view the Wireless Network Status screen. The Status screen provides information on your  
current network settings.  
Status- This shows the status of the connection.  
SSID - Service Set Identifier, a 32-character unique identifier attached to the header of packets sent over a  
WLAN. This is the unique name used to identify a network.  
Wireless Mode - The mode of the wireless network currently in use is displayed here.  
Transfer Rate - This shows the speed at which your wireless network transmits.  
Channel - This displays the channel used by your network.  
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.  
Figure 5-3: Link Information - Wireless Network Status  
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 (Domain Name Service) address of the Adapter.  
DHCP - This shows the status of the DHCP server.  
MAC Address- The MAC address of the wireless network’s access point or wireless router is shown here.  
Click the Statistics tab to view the Wireless Network Statistics screen. Click the Connection 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.  
Chapter 5: Using the Wireless Network Monitor  
Link Information  
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Statistics  
The 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 Clear Counters 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 Clear Counters 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 Clear Counters button was last pressed.  
Bytes Transmitted - This shows the bytes transmitted by the Adapter, in real time, since connecting to the  
wireless network or since the Clear Counters button was last pressed.  
Figure 5-4: Link Information - Wireless Network  
Statistics  
Driver Version - This shows the version of the Adapter’s driver.  
Signal Strength - This is the intensity of the wireless signal received by the Adapter.  
Transmit Power - This is the power at which the Adapter transmits.  
Total Up Time - This indicates the cumulative total of the Adapter’s connection time.  
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 Connection 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 Clear Counters button to reset the statistics counter.  
Chapter 5: Using the Wireless Network Monitor  
Link Information  
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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 Mode - This is the mode of the wireless network currently in use.  
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.  
Authentication - The authentication setting for the network is shown here.  
Encryption - The status of the wireless security feature is displayed here.  
Connect - To connect to a wireless network using a specific profile, select the profile, and click Connect.  
Figure 5-5: Profiles  
New - Click the New button to create a new profile. See the next section, “Create a New Profile,” for detailed  
instructions.  
Figure 5-6: Import a Profile  
Edit - Select the profile you want to change, and then click the Edit button. See the section, “Edit a New Profile,”  
for detailed instructions.  
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.  
Delete - Select the profile you want to delete, and then click the Delete button.  
NOTE: If you want to export more than one profile, you must export them one at a time.  
NOTE: The default profile cannot be deleted.  
Figure 5-7: Export a Profile  
Chapter 5: Using the Wireless Network Monitor  
Profiles  
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Create a New Profile  
When you click the New button on the Profiles screen, you will need to enter a name for your new profile and  
click OK, then the Available Wireless Network screen appears.  
This screen provides two options for setting up the Adapter.  
•
•
Available Wireless Network. (For most users.) Use this option if you already have a network set up. The  
networks available to this Adapter will be listed on this screen. You can choose one of these networks and  
click the Connect button to connect to it. Click the Refresh button to update the Available Wireless Network  
list.  
Manual Setup. If your network is not listed on this screen, select Manual Setup to set up the adapter  
manually. This method of setting up the Adapter is intended for advanced users only.  
The setup for each option is described under the appropriate heading on the following pages.  
Click Exit to return to the Profiles screen.  
Figure 5-8: Creating a Profile - Available Wireless  
Network  
Available Wireless Network  
The available networks are listed by SSID. Select the wireless network you wish to connect to and click the  
Connect button. (If your network is not listed, you can click the Refresh button to bring the list up again.)  
If the network utilizes wireless security, you will need to configure security on the Adapter. If not, you will be  
taken directly to the Congratulations screen.  
1. If you have wireless security enabled on your network, continue to step 2. One of these security screens will  
be shown. If you don’t have wireless security enabled, continue to step 3.  
2. If your network has WEP, WPA Personal, or WPA2 Personal wireless security enabled, then that security  
screen will appear. Continue to the screen for your wireless security.  
•
WEP (Wired Equivalent Privacy)  
If your network has the wireless security WEP (Wired Equivalent Privacy), this screen will appear. You  
must enter the same security settings used on your network.  
Figure 5-9: Creating a Profile - WEP Key Needed  
Select 64-bit or 128-bit WEP encryption, then enter a passphrase or WEP key.  
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Passphrase - Enter a passphrase in the Passphrase field, to automatically generate a WEP key. 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. Valid hexadecimal characters are “0” to “9” and “A” to “F”.  
Then click Connect and proceed to Step 3.  
•
WPA Personal  
If your network has the wireless security WPA Personal (Wi-Fi Protected Access) enabled, this screen will  
appear. You must enter the same security settings used on your network.  
Passphrase - Enter a Passphrase, also called a Pre-shared Key, of 8-63 characters in the Passphrase  
field.  
Figure 5-10: Creating a Profile - WPA-Personal  
Then click Connect and proceed to Step 3.  
•
WPA2 Personal  
If your network has the wireless security WPA2 Personal enabled, this screen will appear. You must enter  
the same security settings used on your network.  
Passphrase - Enter a Passphrase, also called a Pre-shared Key, of 8-63 characters in the Passphrase  
field.  
Then click Connect and proceed to Step 3.  
3. After the software has been successfully installed, the Congratulations screen will appear. Click Connect to  
Network to connect to your network, implement the new settings, and return to the Link Information screen.  
Figure 5-11: Creating a Profile - Congratulations  
Congratulations! The profile has been successfully configured.  
Chapter 5: Using the Wireless Network Monitor  
Create a New Profile  
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Manual Setup  
If your network is not listed with the available networks, you can use Manual Setup.  
1. Click Manual Setup on the Available Wireless Network screen to set up the adapter manually.  
2. The Network Settings screen will appear. If your network has a router or other DHCP server, select Obtain  
network settings automatically (DHCP).  
If your network does not have a DHCP server, select 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.  
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.  
Figure 5-12: Creating a Profile - Manual Setup -  
Network Settings  
DNS 1 and DNS 2 - Enter the DNS address of your wired Ethernet network here.  
Click the Next button to continue, or click the Back button to return to the previous screen.  
3. The Wireless Mode screen shows a choice of two wireless modes. Select Infrastructure Mode if you want to  
connect to a wireless router or access point. Select Ad-Hoc Mode, if you want to connect to another wireless  
device directly without using a wireless router or access point. Enter the SSID for your network.  
Infrastructure Mode - Use this mode if you want to connect to a wireless router or access point.  
Ad-Hoc Mode - Use this mode if you want to connect to another wireless device directly without using a  
wireless router or access point.  
SSID - This is the wireless network name that must be used for all the devices in your wireless network. It is  
case- sensitive and should be a unique name to help prevent others from entering your network.  
Figure 5-13: Creating a Profile - Manual Setup -  
Wireless Mode  
Click the Next button to continue, or click the Back button to return to the previous screen.  
Chapter 5: Using the Wireless Network Monitor  
Create a New Profile  
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wep (wired equivalent privacy): a method of encrypting network  
data transmitted on a wireless network for greater security.  
4. If you chose Infrastructure Mode, go to Step 5 now. If you chose Ad-Hoc Mode, the Ad-Hoc Mode Settings  
screen will appear.  
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.  
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.  
wpa2 offers a stronger encryption than wpa by using the AES  
(Advanced Encryption Standard) which is a block cipher with  
block sizes of 128, 192 or 256 bits.  
Click the Next button. Click the Back button to change any settings.  
5. If your wireless network doesn’t have wireless security, select Disabled and then click the Next button to  
continue. Proceed to Step 6.  
If your wireless network has wireless security, select the method of security used: WEP, WPA/WPA2  
Personal, WPA/WPA2 Enterprise, RADIUS or LEAP. WEP stands for Wired Equivalent Privacy, and WPA  
stands for Wi-Fi Protected Access. WPA uses a stronger security method than WEP and WPA2 defines an even  
stronger encryption, authentication, and key management than WPA. RADIUS stands for Remote  
Authentication Dial-In User Service. LEAP stands for Lightweight Extensible Authentication Protocol. It uses  
username and password-based authentication between a wireless client and a RADIUS server. Click the Next  
button to continue or the Back button to return to the previous screen.  
Proceed to the appropriate section for your security method: WEP, WPA/WPA2-Personal, WPA/WPA2-  
Enterprise, RADIUS, or LEAP.  
Figure 5-14: Creating a Profile - Manual Setup -  
Wireless Security - Disabled  
WEP  
WEP - Select 64-bit or 128-bit encryption  
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.)  
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.  
Valid hexadecimal characters are “0” to “9” and “A” to “F”.  
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 5-15: Creating a Profile - Manual Setup -  
Wireless Security - WEP  
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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.  
WPA Personal  
WPA Personal offers two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2 only uses  
AES for encryption. Select TKIP or AES for encryption for WPA Personal. 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.  
Figure 5-16: Creating a Profile - Manual Setup -  
Wireless Security - WPA Personal  
Passphrase - Enter a Passphrase, also called a Pre-shared Key, of 8-63 characters in the Passphrase field.  
Click the Next button to continue or the Back button to return to the previous screen.  
WPA2 Personal  
Enter a Pre-shared Key that is 8-63 characters in length.  
Pre-shared Key - Enter a Pre-shared Key of 8-63 characters in the Pre-shared Key field.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-17: Creating a Profile - Manual Setup -  
Wireless Security - WPA2 Personal  
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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, EAP-  
TLS and PEAP, as well as two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2  
Enterprise offers two authentication methods, EAP-TLS and PEAP, but only AES encryption method is used.  
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.  
Figure 5-18: Creating a Profile - Manual Setup -  
Wireless Security - WPA Enterprise - EAP-TLS  
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). Then select the authentication method used inside the PEAP tunnel.  
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.  
Figure 5-19: Creating a Profile - Manual Setup -  
Wireless Security - WPA Enterprise - PEAP  
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WPA2 Enterprise  
WPA2 Enterprise features WPA2 security used in coordination with a RADIUS server. (This should only be used  
when a RADIUS server is connected to the Router.) WPA2 Enterprise offers two authentication methods, EAP-  
TLS and PEAP.  
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.  
Figure 5-20: Creating a Profile - Manual Setup -  
Wireless Security - WPA2 Enterprise - EAP-TLS  
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).  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-21: Creating a Profile - Manual Setup -  
Wireless Security - WPA2 Enterprise - PEAP  
Chapter 5: Using the Wireless Network Monitor  
Create a New Profile  
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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  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-22: Creating a Profile - Manual Setup -  
Wireless Security - RADIUS - EAP-TLS  
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).  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-23: Creating a Profile - Manual Setup -  
Wireless Security - RADIUS - PEAP  
Chapter 5: Using the Wireless Network Monitor  
Create a New Profile  
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LEAP  
Lightweight Extensible Authentication Protocol is a mutual authentication method that uses a username and  
password based system.  
Enter the username and password in their fields. Enter the password again in the Confirm filed.  
Figure 5-24: Creating a Profile - Manual Setup -  
Wireless Security - LEAP  
6. 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 Manual Setup through the Wireless Network  
Monitor, click Exit.  
Figure 5-25: Creating a Profile - Manual Setup -  
Confirm New Settings  
Chapter 5: Using the Wireless Network Monitor  
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7. 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 Profile Screen to keep the current  
settings active and return to the Profiles screen.  
Congratulations! The profile has been successfully configured.  
Figure 5-26: Creating a Profile - Manual Setup -  
Congratulations  
Editing a Profile  
On the Profiles screen, select the profile that you would like to edit in the profile list and click on Edit button. The  
next screen would be the Wireless Mode. Follow the steps below to complete the task.  
Figure 5-27: Editing a Profile  
Chapter 5: Using the Wireless Network Monitor  
Editing a Profile  
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1. The Wireless Mode screen shows a choice of two wireless modes. Click the Infrastructure Mode radio  
button if you want to connect to a wireless router or access point. Click the Ad-Hoc Mode radio button if you  
want to connect to another wireless device directly without using a wireless router or access point. Enter the  
SSID for your network.  
Infrastructure Mode - Use this mode if you want to connect to a wireless router or access point.  
Ad-Hoc Mode - Use this mode if you want to connect to another wireless device directly without using a  
wireless router or access point.  
SSID - This is the wireless network name that must be used for all the devices in your wireless network. It is  
case- sensitive and should be a unique name to help prevent others from entering your network.  
Click the Next button to continue, or click the Back button to return to the previous screen.  
Figure 5-28: Editing a Profile - Wireless Mode  
2. If you chose Infrastructure Mode, go to Step 3 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.  
Click the Next button. Click the Back button to change any settings.  
Figure 5-29: Editing a Profile - Ad Hoc Mode  
Chapter 5: Using the Wireless Network Monitor  
Editing a Profile  
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3. If your wireless network doesn’t have wireless security, select Disabled and then click the Next button to  
continue. Proceed to Step 4.  
If your wireless network has wireless security, select the method of security used: WEP, WPA/WPA2  
Personal, WPA/WPA2 Enterprise, RADIUS or LEAP. WEP stands for Wired Equivalent Privacy, and WPA  
stands for Wi-Fi Protected Access. WPA uses a stronger security method than WEP and WPA2 defines an even  
stronger encryption, authentication, and key management than WPA. RADIUS stands for Remote  
Authentication Dial-In User Service. LEAP stands for Lightweight Extensible Authentication Protocol. It uses  
username and password-based authentication between a wireless client and a RADIUS server. Click the Next  
button to continue or the Back button to return to the previous screen.  
Proceed to the appropriate section for your security method: WEP, WPA/WPA2-Personal, WPA/WPA2-  
Enterprise, RADIUS, or LEAP.  
Figure 5-30: Editing a Profile - Wireless Security  
WEP  
WEP - Select 64-bit or 128-bit encryption  
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.)  
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.  
Valid hexadecimal characters are “0” to “9” and “A” to “F”.  
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.  
Figure 5-31: Editing a Profile - Wireless Security -  
WEP  
Click the Next button to continue, or click the Back button to return to the previous screen.  
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WPA Personal  
WPA Personal offers two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2 only uses  
AES for encryption. Select TKIP or AES for encryption for WPA Personal. 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.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-32: Editing a Profile - Wireless Security -  
WPA Personal  
WPA2 Personal  
Enter a Pre-shared Key that is 8-63 characters in length.  
Pre-shared Key - Enter a Pre-shared Key of 8-63 characters in the Pre-shared Key field.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-33: Editing a Profile - Wireless Security -  
WPA2 Personal  
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WPA Enterprise  
WPA/WPA2 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,  
EAP-TLS and PEAP, as well as two encryption methods, TKIP and AES, with dynamic encryption keys. WPA2  
Enterprise offers two authentication methods, EAP-TLS and PEAP, but only AES encryption method is used.  
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.  
Figure 5-34: Editing a Profile - Wireless Security -  
WPA Enterprise - EAP-TLS  
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. 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.  
Figure 5-35: Editing a Profile - Wireless Security -  
WPA Enterprise - PEAP  
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WPA2 Enterprise  
WPA2 Enterprise features WPA2 security used in coordination with a RADIUS server. (This should only be used  
when a RADIUS server is connected to the Router.) WPA2 Enterprise offers two authentication methods, EAP-  
TLS and PEAP.  
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.  
Figure 5-36: Editing a Profile - Wireless Security -  
WPA2 Enterprise - EAP-TLS  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-37: Editing a Profile - Wireless Security -  
WPA2 Enterprise - PEAP  
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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  
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.  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-38: Editing a Profile - Wireless Security -  
RADIUS - EAP-TLS  
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).  
Click the Next button to continue or the Back button to return to the previous screen.  
Figure 5-39: Editing a Profile - Wireless Security -  
RADIUS - PEAP  
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LEAP  
Lightweight Extensible Authentication Protocol is a mutual authentication method that uses a username and  
password based system.  
Enter the username and password in the username and password field accordingly. Enter the password again  
in the Confirm field.  
Figure 5-40: Editing a Profile - Wireless Security -  
LEAP  
4. The Network Settings screen from the Wireless Network Monitor will appear. If your network has a router or  
other DHCP server, click the radio button next to Obtain network settings automatically (DHCP).  
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.  
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.  
Click the Next button to continue, or click the Back button to return to the previous screen.  
Figure 5-41: Editing a Profile - Network Settings  
Chapter 5: Using the Wireless Network Monitor  
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5. 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 Manual Setup through the Wireless Network  
Monitor, click Exit.  
Figure 5-42: Editing a Profile - Confirm New Settings  
6. 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 Profile Screen to keep the current  
settings active and return to the Profiles screen.  
Congratulations! The profile has been successfully configured.  
Figure 5-43: Editing a Profile - Congratulations  
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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, CH  
(Channel), or Signal, to sort by that field.  
SSID - The SSID or unique name of the wireless network is displayed here.  
CH - This is the channel that the network uses.  
Signal - This is the percentage of signal strength, from 0 to 100%.  
The Access Points in the Site Survey list will be represented with different  
icons that will indicate Access Points in various states of classification. For  
instance, trusted Access Points are green, untrusted Access Points are red,  
and unclassified Access Points are blue. And if there is a lock next to it, it  
indicates the Access Point has a security method enabled.  
Figure 5-44: Site Survey  
For more information about classification of the Access Points, refer to “AP Classification” section of “Chapter 6:  
The Administrative Functions in the Wireless Network Monitor.”  
Site Information  
For each network selected, the following settings for each SSID are listed:  
Wireless Mode - This is the mode of the wireless network currently in use.  
Network Type - The type of your network connection in either wireless-b or wireless-g is displayed here.  
Security - The status of the wireless security feature is displayed here.  
MAC Address- 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 - Click the Connect button to connect to a selected network.  
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Troubleshooting  
The Troubleshooting screen lets you troubleshoot your wireless connection.  
Address Type - This shows the addressing method of your client.  
IP Address - This shows the current IP Address of your client.  
Subnet Mask - This shows the subnet mask of your IP addressing.  
Default Gateway - This shows the default gateway of your IP addressing.  
You may click Repair to troubleshoot your connection to the wireless network. Repair will disconnect your client  
from the network and then reconnect, in order to re-establish an IP address. You may also click FAQ to view the  
FAQ pages from the Linksys website.  
Figure 5-45: Troubleshooting  
Administration  
The Administration screen lets you administer your Security Monitor account and classification functions, and  
modify your Access Point’s username and password in Account Management. Select on a button to log in to  
either the Security Monitor account or Account Management as the Access Point's administrator.  
Log in to the Security Monitor account to access the classification and Security Monitor functions:  
Enter the Security Monitor’s account name and password in the username and password fields, then retype the  
password in the confirm field. Click Next to continue to the administrative options.  
After a successful login, the Classification and Security Monitor tab appears. Only the login screens are provided  
in this section. To use the Administration tab, continue to Chapter 6: The Administrative Functions in the Wireless  
Network Monitor.  
Figure 5-46: Administration  
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Log in as the Access Point's administrator:  
Enter the Access Point's administrative account and password and retype the password in the confirm field  
(default account name is admin and password is admin). Click Next to continue to the administrative options.  
Figure 5-47: Administration - Login Access Point  
Account  
Access Point Account  
This screen appears when you click the Access Point button on the Security Monitor Account screen. This will let  
you modify your Access Point’s username and password.  
Figure 5-48: Administration - Modify Access Point  
Account  
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Security Monitor Account  
The Security Monitor Account screen provides you with the function to create and modify your Security Monitor  
account. The Security Monitor account gives access to the administrative functions of the Wireless Network  
Monitor.  
Enter the administrator’s username and password and retype the password in the confirm field. Click Next to  
proceed with more administrative options.  
The username and password for the Security Monitor administrator  
account do not need to be the same as the Access Point's administrator  
account.  
Figure 5-49: Administration - Security Monitor  
Account  
You can select an account from the drop-down menu to create or modify the username and password. There are  
a total of five accounts available. Click Save to save your existing changes.  
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Chapter 6: The Administrative Functions in the Wireless  
Network Monitor  
When used with the WAP200 Access Point, you can use the administration functions in the Wireless Network  
Monitor to classify your wireless networks into different groups and monitor the activities and resources within  
your networks. The following functions under Classification and Security Monitor screens are only enabled after  
an administrator or privileged user enters a valid username and password.  
Figure 6-1: Wireless Network Monitor Icon  
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.  
Using the Administrative Functions in the Wireless Network Monitor  
The Administration tab will give you access to the administrative tasks of the account information and other  
functions, such as classification and monitoring of your wireless networks. The Classification and Security  
Monitor functions will be provided after logging in to the Security Monitor account on the Administration screen.  
To configure trusted and untrusted wireless networks, click the Classification tab. To view the summarized  
report of the monitored wireless activities and alert messages, click the Security Monitor.  
Figure 6-2: Administration - Login Security Monitor  
Administration - Login Security Monitor Account  
NOTE: You must associate with a WAP200 Access Point to be able to log in to the Security  
Monitor.  
NOTE: You will need to log in with a valid Security Monitor account to view the screens in this  
chapter.  
Figure 6-3: Classification  
Chapter 6: The Administrative Functions in the Wireless Network Monitor  
Accessing the Wireless Network Monitor  
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Classification  
The Classification tab displays a summary of classified devices. The Classification Summary table shows the  
number of access points and clients classified as trusted and untrusted by MAC addresses in your networks. It  
also shows the number of allowed vendors, SSIDs, and channels.  
You may uncheck the Receive classification rules to disable a client from receiving the network's current  
classification rules. The default condition is checked, so each client always receives classification rules in  
synchronization with other clients in the network. You may also click the Synchronize button to send out the  
classification rules to other users within your monitored wireless networks.  
Click Next to configure your trusted networks.  
NOTE: Classification rules: access points and clients can be classified as trusted or untrusted,  
and access points can be additionally classified by MAC address, SSID, vendor, or channel.  
Figure 6-4: AP Classification  
AP Classification  
The AP Classification screen lets you classify the existing access points as trusted or untrusted. A Trusted device  
is one that has been identified by the system administrator to be known and legitimate. An untrusted device is  
one that is known and not legitimate. This device could be a malicious device or simply a neighborhood device  
not part of the network. Remaining devices that have not been classified are considered unclassified or unknown.  
The Unclassified Access Points table lists the available unclassified wireless access points with their SSIDs,  
channels and MAC Addresses. The top right table lists the Trusted Access Points. The lower right table lists the  
Untrusted Access Points.  
You may select any items from the Unclassified Access Points table and click the arrow to classify your selections  
into Trusted Access Points or Untrusted Access Points. You may also select any items from the Trusted Access  
Points or Untrusted Access Points and click the arrow to de-classify your selections into the Unclassified Access  
Points table.  
You may select Warning when connecting to untrusted AP, if you want to be warned when connecting to an  
untrusted AP, or select Restrict connection to untrusted AP to disallow connection to an untrusted AP.  
Click Refresh to refresh the list, Clear to clear selected items on the list, or click Back to go to the previous  
screen.  
Figure 6-5: Client Classification  
Click AP Classification, Client Classification, or Advanced Settings to go to that screen.  
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Client Classification  
The Client Classification Screen lets you classify the existing wireless clients into trusted networks and untrusted  
networks. New client information is received from Linksys Business Series access points. New clients start off as  
Unclassified until the System Administrator classifies them. A Trusted Client is one that has been identified by the  
System Administrator to be known and legitimate. An Untrusted Client is one that is known and not legitimate;  
this client could be a malicious client or simply a neighborhood client not part of the network. Remaining clients  
that have not been classified can be considered as unclassified or unknown.  
The left table lists the available unclassified clients with their associated Access Point's SSID. The top right table  
lists the clients that have been classified as Trusted. The lower right table lists the clients that have been  
classified as Untrusted.  
You may select any items from the Unclassified Clients table and click the arrow to classify your selections into  
Trusted Clients or Untrusted Clients. You may also select any items from the Trusted Clients or Untrusted  
Clients and click the arrow to de-classify your selections into theUnclassified Clients table.  
Figure 6-6: Trusted Mac Address  
You may click Refresh to refresh the list, Clear to clear selected items on the list, or Back to go to the previous  
screen.  
You may click AP Classification, Client Classification, or Advanced Settings to go to that screen.  
Advanced Settings  
Click Advanced Settings to classify your wireless networks by Mac (Address), Vendor, SSID or Channel. Click  
the MAC tab to configure the trusted MAC addresses, Vendor to configure the trusted AP vendor list, SSID to  
configure the trusted SSID list, Channel to configure the trusted channel, or Back to go to the previous screen.  
Trusted MAC Addresses  
Clicking the MAC button displays the Trusted MAC Addresses screen, which provides information and function for  
configuring the existing wireless networks as trusted networks with MAC Access control of the access points and  
the clients. The Trusted AP’s MAC Addresess that you enter on this screen will also appear on the AP  
Classification screen as a trusted access point.  
The tables list the entry of MAC addresses of your trusted and allowed wireless access points and clients.  
Enter the 12-digit hexadecimal numbers in the field and click Add to add the entry. To delete an entry, select it,  
then click Delete.  
Figure 6-7: Allowed SSID Configuration  
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Allowed Vendor List Configuration  
The Allowed Vendor List Configuration table lists the OUI (Organization Unique Identification) and vendor name of  
your trusted and allowed AP Vendor OUIs. A OUI is the three-octet (first 6 digits) used to generate LAN MAC  
Addresses for hardware manufacturers. To delete an item, select it, and click delete. The latest vendor OUI lists  
are available at http://standards.ieee.org/regauth/oui/index.shtml.  
Vendor Name - This is the name of your desired vendor. Select a vendor’s name from the drop-down list and  
click Add to add the vendor.  
Vendor OUI - If the vendor OUI is not listed, you may enter the company’s OUI and click Add to enter your  
vendor’s OUI in the list.  
APs from vendors not on the allowed vendor list will be automatically classified as untrusted. A blank list  
indicates that all vendor OUIs are allowed for AP classification.  
Figure 6-8: Allowed Vendor List Configuration  
Allowed SSID Configuration  
The Allowed SSID Configuration table shows the SSIDs of the allowed APs on your network. APs from SSIDs not  
on this list will be automatically classified as untrusted. A blank list indicates that all SSIDs are allowed for  
classification.  
SSID - This is the unique name of the wireless network. It is a 32-character unique identifier attached to the  
header of packets sent over a WLAN.  
You may enter the SSID of a trusted and allowed wireless network in the field and click Add to add it into your  
list. You may select an item and click Delete to delete it from the list.  
Figure 6-9: Allowed SSID Configuration  
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Allowed Channel Configuration  
The Allowed Channel Configuration screen shows the channels that are allowed to be used in your wireless  
networks. You may select individual channels or click Check All to check all of the channels. Unclassified access  
points on unchecked channels will be automatically classified as untrusted.  
Security Monitor  
IMPORTANT: You must use a WAP200 Access Point with your USB Network Adapter to use the Security  
Monitor.  
Figure 6-10: Allowed Channel Configuration  
The Security Monitor helps to make your network more secure. It monitors the airspace through the WAP200  
Access Point and USB Network Adapter for security related issues like vulnerabilities in the network  
configuration, which allows you to act quickly to solve issues and secure your network. The Monitor runs on the  
client PC, which allows the administrator to perform initial setup of security profiles and classification of the  
wireless network devices and later view assorted security alerts.  
The Security Monitor tab displays the statistics of your wireless network and alerts you of network activity by  
Channel Usage, AP Inventory, Client Inventory, or Alerts.  
Click Channel Usage, AP Inventory to view the statistics of the distribution on your AP’s classifications, Client  
Inventory to view the distribution of the client’s classifications on your wireless networks, or Alert to monitor  
that function.  
Channel Usage  
The Channel Usage screen provides statistics of the distribution on your channel’s usages. The histogram shows  
the number of access points in each channel, so unclassified access points can be detected. Select the specified  
period of time you want for the data calculations. You may select Real Time for current data, 24 hours for data  
within the last 24 hours, 7 days for data within the last 7 days or select days for a range of days.  
Figure 6-11: Security Monitor - Channel Usage  
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AP Inventory  
The AP Inventory screen provides statistics of the distribution grouped by your AP’s classification of your wireless  
networks. The pie chart shows the percentage of each classification type, so you can easily view the number of  
trusted, untrusted, and unknown APs in the airspace. Select the specified period of time you want for the data  
calculations. You may select Real Time for current data, 24 hours for data within the last 24 hours, 7 days for  
data within the last 7 days or select days for a range of days.  
Figure 6-12: Security Monitor - AP Inventory  
Client Inventory  
The Client Inventory screen provides statistics of trusted, untrusted, and unknown clients. The pie chart shows  
the percentage of each wireless client’s classification, so you can easily view the number of trusted, untrusted,  
and unknown clients in the airspace. Select the specified period of time you want for the data calculations. You  
may select Real Time for current data, 24 hours for data within the last 24 hours, 7 days for data within the last  
7 days or select days for a range of days.  
Figure 6-13: Security Monitor - Client Inventory  
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Alert  
Overview  
Both the WAP200 Access Point and client USB Network Adapter monitor the state of your wireless network and  
report on security related issues, ranging from on-going attacks down to vulnerabilities in the network  
configuration.  
The Access Point does most of the security monitoring work while the client Notebook Adapter can detect new  
and rogue access points. The management software runs on the client PC, which allows the system  
administrator to perform initial setup of security profiles and classification of the wireless network devices.  
When a client Notebook Adapter detects an unknown access point, it will notify its associated Access Point. The  
Access Points synchronize security alerts with each other and send the alert to the administrator.  
Once the administrator is alerted with the security alarm, the administrator or one of the five authorized users  
can log in to the Security Monitor to retrieve the Alert Log from the Access Point.  
There are four categories of policy violation rules listed under Alert Type: Intrusion Alarms: unauthorized  
connection or hacking attack taking place on the network, Denial of Service Alarms: denial of service attack  
detected on the network, Vulnerability Alarms: potential threat to the security of the network, and Others. Each  
represents a different kind of threat to the wireless network, ranging from poor performance to unauthorized  
users connected to the network. A violation will be listed under Amount. You can click Retrieve Alert log to view  
the Alert List. When Detail is clicked, the Details screen appears with more detailed information of the event, then  
you can click Advice to view the suggested advice for the event.  
Alerts Summary  
The Alerts Summary screen lists the alert types, amount of alerts, and available details.  
Detail - Click the Detail button to view more detailed information for each event.  
Receive Alert logs - Select this to receive alert logs from access points.  
Retrieve Alert log - Click this button to view an alert log.  
Figure 6-14: Security Monitor - Alerts Summary  
Enable Pop-up - Select this to allow this client to receive a pop-up warning message when a new access point  
or client is detected.  
Click Back to go to the previous screen.  
Figure 6-15: Security Monitor - POP-UP Alert  
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NOTE: You will be alerted when an Access Point is detected, if you enable pop-up.  
Alert List  
The Alert List screen shows the list of the alert activities within your monitored wireless networks.  
SSID - This shows the SSID (network name) of your wireless network.  
MAC - This shows the MAC Address of the wireless client or access point that was detected.  
Alert Description - This shows brief descriptions of the alert activities. The alert system will alert you when new  
access points or wireless clients are detected, or if other policy violations or attacks are detected.  
Date/Time - This indicates the date/time that an alert activity happened.  
Delete - Select an item, then click this button to delete the item.  
Click Back to go to the previous screen or Exit to go to the main menu.  
Figure 6-16: Security Monitor - Alert List  
Alert Details  
The Details screen shows the detailed message of each alert event.  
Alert - This indicates the description of the event.  
MAC Address - This shows the MAC Address of the wireless client or Access Point that performed the action.  
Date/Time - This shows the Date/Time of the alert.  
Description - This shows the detailed description of the event.  
You may click the Advice button to view the advice message, Back to go back to the previous screen, or Exit to  
go back to the main menu.  
Figure 6-17: Alert Details  
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Advice  
The Advice screen gives advice, when applicable, on what can be done for each alert event. You may need to  
adjust your wireless network settings according to the advice to better protect your networks.  
Figure 6-18: Security Monitor - Alert Advice  
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The following table is a summary of the various alert descriptions and advice.  
Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
Rogue Client is detected doing one or more illegal actions, e.g., causing Message  
Integrity Check (MIC) errors, sending disassociation frames, sending  
deauthentication frames, and sending association frames with incorrect  
encryption.  
MIC error generation: The MIC function prevents attacks on encrypted packets.  
During an attack, an intruder intercepts an encrypted (WPA - Personal) message,  
alters it slightly, and retransmits it, and the receiver accepts the retransmitted  
message as legitimate. This action will cause a MIC error. If an attacker causes  
two MIC errors within 60 seconds, it will be considered a Rogue Client.  
Disassociation attacking:  
Occurs when a wireless station transmits a disassociation request to an AP which  
it is not associated with.  
A Rogue Client is detected.  
For details, press the Advice button.  
1
Rogue Client Detected  
De-authentication attacking:  
Occurs when a wireless station transmits a de-authentication request to an AP  
which it is not associated with.  
Authentication failure:  
Occurs when the AP receives an association request with different encryption from  
a wireless client.  
Action:  
1. Contact the network administrator and send the administrator the Rogue Client  
computer information.  
2. Change MAC access control list on the AP and further block the Rogue Client's  
activities.  
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Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
AP's SSID was changed by an unknown source. This may be caused by a possible  
intruder if the AP's SSID was not changed by the administrator.  
Original SSID:  
Modified SSID:  
SSID on the AP has changed. For  
details, press the Advice button.  
2
AP SSID Changed  
Action:  
1. Contact the network administrator.  
2. If an intruder is suspected, change administrator's password on the AP.  
Description:  
AP's Channel was changed by an unknown source. It could possibly be done by an  
intruder if it was not changed by the administrator or via auto channel selection.  
Original Channel:  
Modified Channel:  
AP's Channel has Changed. For details,  
3
AP Channel Changed  
press the Advice button.  
Action:  
1. Contact the network administrator and send the administrator the Login  
Information/history.  
2. If an intruder is suspected, change the administrator's password on the AP.  
Description:  
AP's MAC address has been spoofed by a wireless client. Client sends a frame with  
a MAC address which is the same as the AP's MAC address. By processing these  
packets, the AP may be subjected to heavy loading.  
The AP's MAC Address has been  
spoofed by a wireless client. For  
details, press the Advice button.  
4
Spoofed MAC Address  
Action:  
No actions required. The AP will automatically drop these frames.  
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Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
Client not associated with AP is sending traffic. Probable rogue client. The Client  
might be trying to make the network busy and causing heavy loading to the AP.  
Client not associated with AP is sending  
traffic. For details, press the Advice  
button.  
Client is Sending Spurious  
Traffic  
5
Action:  
1. Contact network administrator.  
2. Add the Client MAC address to MAC Access Control List on AP Web Page.  
Description:  
A wireless client using Adhoc structure has the same SSID as the AP's SSID.  
Illegitimate AP could use the same SSID to fool other wireless clients that it is a  
legitimate AP.  
A wireless client using Adhoc structure  
has the same SSID as the AP's SSID. For  
details, press the Advice button.  
Adhoc SSID is the same as  
the AP's  
6
Action:  
1. Contact network administrator.  
2. Try to physically locate the wireless client computers.  
Description:  
Packets with abnormally large duration sent by a client may prevent other clients  
from sending packets to the AP.  
Client computer information:  
Abnormally large duration for packets  
sent by client. For details, press the  
Advice button.  
7
Duration Attack  
Action:  
1. Try to physically locate the wireless client computer.  
2. Add the Client's MAC address to MAC Access Control List on the AP.  
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Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
A New client association request is refused due to a lack of memory. It could be an  
overloaded AP from being associated with too many legitimate clients or it could be  
a possible Denial of Service attack that will prevent legitimate clients from  
associating with the AP.  
Possibly a Denial of Service Attack. For  
details, press the Advice button.  
8
Association Table Full  
Action:  
1. AP will stop allowing more client association with the AP.  
2. Check the AP's client's list to see if any wireless client is illegitimate.  
Description:  
AP does not have any authentication method enabled, so it is vulnerable to network  
attacks or sniffing.  
AP does not have any encryption  
method enabled. For details, press the  
Advice button.  
9
AP Is Not Using Encryption  
Action:  
1. Contact the network administrator.  
2. In order to make the wireless network more secure, set up the AP with a  
stronger authentication method, e.g., WPA or WPA2.  
Description:  
AP has SSID Broadcasting enabled, so any wireless station can obtain its SSID.  
AP has SSID Broadcasting enabled. For  
details, press the Advice button.  
10  
11  
AP Broadcasting SSID  
Action:  
In order to avoid being attacked by rogue clients, turn off SSID broadcasting on the  
AP.  
Description:  
AP is using the default SSID. Default SSIDs are easy to identify, so a hacker can  
effortlessly connect to the AP.  
AP is using the default SSID. For details,  
press the Advice button.  
Default SSID in Use  
Action:  
In order to keep the connection secure, change the AP SSID to a non-default SSID.  
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Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
An unclassified AP has same SSID as the trusted AP.  
Action:  
Unclassified AP has the same SSID as a  
trusted AP. For details, press the  
Advice button.  
1. Contact the network administrator and inform the administrator about the  
untrusted AP's SSID and MAC address.  
2. Check if the untrusted AP is legitimate.  
12  
Duplicate SSID in Use  
3. Unclassified AP needs to be classified and the classification table needs to be  
updated.  
Description:  
New AP is detected. The new Access Point needs to be classified and the  
classification table needs to be updated.  
New AP is detected. For details, press  
the Advice button.  
Action:  
13  
New Access Point Detected  
1. Contact the network administrator and inform the administrator about the new  
Access Point's SSID and MAC address.  
2. Unclassified AP needs to be classified and the classification table needs to be  
updated.  
Description:  
Clients are operating in Adhoc mode, so network security could be compromised.  
Clients are operating in Adhoc mode.  
For details, press the Advice button.  
Action:  
14  
Adhoc Network Operating  
1. Contact the network administrator and inform the administrator of the client's  
SSID and MAC address.  
2. Try to physically locate the wireless client's computers.  
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Table 1: Alerts  
Item  
Alert  
Description  
Advice  
Description:  
New wireless client computer is detected.  
Action:  
New client is detected. For details,  
15  
New Client Detected  
1. Contact the network administrator and inform the administrator about the new  
client computer's SSID and MAC address.  
press the Advice button.  
2. The new Client needs to be classified and the classification table needs to be  
updated.  
Description:  
Data packets are being transferred at a very slow rate. Possible cause may be a  
poor signal reception due to some interference or the client is too far away from  
the AP.  
Connection is at low speed. For details,  
press the Advice button.  
16  
Low Speed Connection  
Action:  
1. Check the environment and find possible causes for wireless signal interference,  
e.g., a microwave oven or a cordless telephone.  
2. Check the MAC association table on the AP for any illegitimate wireless clients.  
Description:  
A Rogue AP is detected doing an illegal action. The AP is using the same SSID and  
encryption as the Trusted AP and is trying to crack the client computer's encryption  
key. During the decryption process, the AP has a 4-way handshake and if  
Rogue AP is detected. For details, press compromised, the client computer will detect a MIC error, indicating a Rogue AP.  
the Advice button.  
17  
Rogue AP Detected  
Action:  
1. Contact network administrator.  
2. Try to physically locate the Access Point.  
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Windows Firewall  
Windows XP users may see a Windows Firewall screen when using the security monitor.  
IMPORTANT: DO NOT select Don’t allow exceptions or the security  
monitor will not work correctly.  
Select On (recommended) to use the firewall. Do not select the Don't allow exceptions or the Adapter’s security monitor will  
not work properly. Then, click OK.  
Figure 6-19: Security Monitor - Windows Firewall  
Screen  
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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 Wireless-G  
Business USB Network 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. The Wireless-G Business USB Network Adapter does not work properly.  
•
Reinsert the USB cable connections.  
•
Right click on My Computer and select Properties. Select the device manager and click on the Network  
Adapter. You will find the Wireless-G USB Network Adapter with RangeBooster if it is installed  
successfully. If you see the yellow exclamation mark, the resources are conflicting. You will see the status  
of the Wireless-G USB Network Adapter with RangeBooster. If there is a yellow question mark, please  
check the following:  
•
•
Make sure that your PC has a free IRQ (Interrupt ReQuest, a hardware interrupt on a PC.)  
Make sure that you have inserted the right adapter and installed the proper driver.  
If the Wireless-G Business USB Network Adapter does not function after attempting the above steps, remove  
the adapter and do the following:  
•
•
Uninstall the driver software from your PC.  
Restart your PC and repeat the hardware and software installation as specified in this User Guide.  
2. I cannot communicate with the other computers linked via Ethernet in the Infrastructure  
configuration.  
•
Make sure that the PC to which the Wireless-G Business USB Network Adapter is associated and is  
powered on.  
•
Make sure that your Wireless-G Business USB Network Adapter is configured on the same channel and  
with the same security options as with the other computers in the Infrastructure configuration.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
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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.  
How will the Wireless networking technology help with my business?  
Keeping your business connected to the internet and managing networking in your office without wires give you  
the freedom to create a dynamic office environment that changes and grows as your business needs. The Linksys  
Wirelees–G Business Notebook Adapter will not only let you communicate sensitive data in a wireless setting, but  
also give you the security and management options within your monitored networks. We designed our wireless  
products to be simple to set up with the advances of the latest data encryption methods and Security Monitor  
functions.  
How long does it take for intrusions and policy violation events to appear in the alert lists?  
Periodic polling is used to report alerts, so the AP and wireless client won’t over-burdened. It may take up to five  
minutes for the alert to appear in the alert lists.  
Can non-administrative users have pop-up alerts appear on their screens?  
Yes, if the administrator enables receive pop-up alerts on the users’ wireless network monitors.  
Can users turn off the pop-up alerts?  
Pop-up alerts are disabled by default and are enabled by the administrator on other stations to aid him in  
monitoring the airspace. Only someone with administrative rights or a designate of the administrator can turn off  
the pop-up alerts.  
What if user a user turns off the Linksys wireless network monitor utility and only uses the Windows  
Zero Config to connect to the wireless network?  
The user will not be able to enjoy the benefits of the Linksys utility, including participation in classification and  
security monitoring, which helps the administrator to detect intrusions and policy violations and improve the  
state of the network. For example, if not using the wireless network monitor utility, the user might compromise  
the network by inadvertently associating to an Untrusted AP.  
My new AP is automatically classified as untrusted when I try to classify using the “Vendor OUI” filter.  
Why does this happen?  
It is possible that the device is new and the Vendor OUI of the AP was not available when we released our  
software. In this case, visit the website: http://standards.ieee.org/regauth/oui/index.shtml and add it into the  
Allowed Vendor List. The Vendor OUI is the three octet (the first 6 digits) of the MAC address.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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What is the 802.11b standard?  
It is one of the 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 802.11b features are supported?  
The product supports the following 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. This type of 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?  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout  
an area greater than that covered by a single access point. Before using the roaming function, the workstation  
must make sure that it is the same channel number with the access point of 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  
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 Spread-  
Spectrum (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  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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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.  
What is WEP?  
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a shared key algorithm, as described in the  
802.11 standard.  
What is WPA?  
WPA is Wi-Fi Protected Access, a wireless security protocol that can be used in conjunction with a RADIUS server.  
What is RADIUS?  
RADIUS is Remote Authentication Dial-In User Service, which uses an authentication server to control network  
access.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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Appendix B: Windows XP Wireless Zero Configuration  
Windows XP Wireless Zero Configuration  
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 right-  
click on the Wireless Network Monitor and select Use Windows XP Wireless Configuration.  
Figure B-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.  
Figure B-2: Windows XP - Use Windows XP  
Wireless Configuration  
1. After installing the Adapter, the Windows XP Wireless Zero Configuration icon will appear in your computer’s  
system tray. Double-click the icon.  
NOTE: For more information about Wireless Zero Configuration, refer  
to Windows Help.  
Figure B-3: Windows XP Wireless Zero Configuration Icon  
Appendix B:  
Windows XP Wireless Zero Configuration  
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2. The screen that appears will show any available wireless network. Select the network you want. Click the  
NOTE: Steps 2 and 3 are the instructions and  
screenshots for Windows XP with Service Pack 2  
installed.  
Connect button.  
If your network does not have wireless security enabled, go to step 3.  
If your network does have wireless security enabled, go to step 4.  
Figure B-4: Available Wireless Network  
3. If your network does not have wireless security enabled, click the Connect Anyway button to connect the  
Adapter to your network.  
Figure B-5: No Wireless Security  
Appendix B:  
Windows XP Wireless Zero Configuration  
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4. If your network uses wireless security WEP, enter the WEP Key used into the Network Key and Confirm  
network key fields. If your network uses wireless security WPA Personal, enter the Passphrase used into  
the Network Key and Confirm network key fields. Click the Connect button.  
Figure B-6: Network Connection - Wireless Security  
NOTE: Windows XP Wireless Zero Configuration does  
not support the use of a passphrase. Enter the exact  
WEP key used by your access point.  
5. Your wireless network will appear as Connected when your connection is active.  
For more information about wireless networking on a Windows XP computer, click the Start button, select Help,  
and choose Support. Enter the keyword wireless in the field provided, and press the Enter key.  
The installation of the Windows XP Wireless Configuration is complete.  
Appendix B:  
Windows XP Wireless Zero Configuration  
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Appendix C: 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 (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.  
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.  
5. Change the SSID periodically.  
6. Use the highest encryption algorithm possible. Use WPA/WPA2 if it is available. Please note that this may  
reduce your network performance.  
7. Change the WEP encryption keys periodically.  
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.  
SSID. There are several things to keep in mind about the SSID:  
Appendix C: Wireless Security  
Security Precautions  
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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  
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.  
3. Change your WEP key regularly  
WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. Three modes are  
available: WPA-Personal, WPA Enterprise, and Radius. WPA-Personal 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. WPA Enterprise offers two encryption methods, TKIP  
and AES, with dynamic encryption keys. RADIUS (Remote Authentication Dial-In User Service) utilizes a RADIUS  
server for authentication.  
Appendix C: Wireless Security  
Security Threats Facing Wireless Networks  
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WPA-Personal. If you do not have a RADIUS server, Select the type of algorithm, TKIP or AES, and enter a  
password in the Passphrase field of 8-63 characters.  
WPA Enterprise. 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.) WPA Enterprise offers two encryption methods, TKIP and  
AES, with dynamic encryption keys.  
WPA2. WPA2 is a wireless security standard that defines stronger encryption, authentication and key  
management than WPA.  
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.)  
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 C: Wireless Security  
Security Threats Facing Wireless Networks  
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Appendix D: Windows Help  
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 D: Windows Help  
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Appendix E: Glossary  
This glossary contains some basic networking terms you may come across when using this product. For more  
advanced terms, see the complete Linksys glossary at http://www.linksys.com/glossary.  
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.  
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 security method that uses symmetric 128-bit block data encryption.  
Bandwidth - The transmission capacity of a given device or network.  
Bit - A binary digit.  
Boot - To start a device and cause it to start executing instructions.  
Broadband - An always-on, fast Internet connection.  
Browser - An application program that provides a way to look at and interact with all the information on the  
World Wide Web.  
Byte - A unit of data that is usually eight bits long  
Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the  
Internet.  
Daisy Chain - A method used to connect devices in a series, one after the other.  
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.  
Appendix E: Glossary  
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DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from  
the Internet.  
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.  
DOS (Denial of Service) - A network security term which defines a type of attack designed to prevent legitimate  
users from using wireless service by flooding with useless/malicious traffic.  
Download - To receive a file transmitted over a network.  
DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.  
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.  
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.  
Firewall - A set of related programs located at a network gateway server that protects the resources of a  
network from users from other networks.  
Firmware - The programming code that runs a networking device.  
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.  
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.  
Appendix E: Glossary  
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Intrusion attack - A type of internet attacks in which an attacker tries to gain or access the information  
transimitted through the networks.  
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.  
ISP (Internet Service Provider) - A company that provides access to the Internet.  
LAN - The computers and networking products that make up your local network.  
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.  
NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different  
IP address for the Internet.  
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or  
transmission between users.  
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.  
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.  
POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet.  
Port - The connection point on a computer or networking device used for plugging in cables or adapters.  
Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.  
PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication  
(username and password) in addition to data transport.  
Appendix E: Glossary  
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PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be  
tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe.  
QoS (Quality of Service) - A mechanism which gives priorities to certain types of traffic to ensure the throughput;  
for example, the streaming multimedia.  
RADIUS (Remote Authentication Dial-In User Service) - A protocol that uses an authentication server to control  
network access.  
RJ-45 (Registered Jack-45) - An Ethernet connector that holds up to eight wires.  
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.  
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.  
SPI (Stateful Packet Inspection) Firewall - A technology that inspects incoming packets of information before  
allowing them to enter the network.  
SSID (Service Set IDentifier) -It consists of 32 alphanumeric characters to identify a group of wireless network  
devices uniquely.  
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.  
Subnet Mask - An address code that determines the size of the network.  
Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of  
devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an  
electrical circuit.  
TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement  
from the recipient of data sent.  
Appendix E: Glossary  
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TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a  
network.  
Telnet - 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.  
Upgrade - To replace existing software or firmware with a newer version.  
Upload - To transmit a file over a network.  
URL (Uniform Resource Locator) - The address of a file located on the Internet.  
VPN (Virtual Private Network) - A security measure to protect data as it leaves one network and goes to another  
over the Internet.  
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 E: Glossary  
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Appendix F: Specifications  
Standards  
IEEE802.11g, IEEE802.11b, 802.1x (Security  
Authentication), (802.1i)  
Channels  
802.11b/802.11g  
11 Channels (US, Canada)  
13 Channels (Europe)  
14 Channels (Japan)  
LEDs  
Link/Act  
Protocols  
802.11b: CCK (11 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps); 802.11g:  
OFDM  
Peak Gain of the Antenna1.89dBi  
Transmitted Power  
Receive Sensitivity  
Security Features  
802.11b: 16~18dBm  
802.11g: 15~17dBm  
11Mbps @ -84dBm (Typical)  
54Mbps @ -70dBm (Typical)  
WEP, WPA-Personal, WPA-Enterprise, WPA2-Personal, WPA2-  
Enterprise with RADIUS  
WEP key bit lengths 64 Bit and 128 Bit  
Security Monitor  
Intrusion Alarms (e.g., Rogue Client Detected, Spoofed MAC address)  
Vulnerability Alarms (e.g., AP is not using encryption, AP is  
broadcasting SSID)  
Dimensions  
3.54" x 2.68" x 0.67" (90 mm x 68 mm x 17 mm)  
Appendix F: Specifications  
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Unit Weight  
2.15 oz (0.061 kg)  
Certifications  
FCC, IC, CE, Wi-Fi (802.11b/g)  
32ºF to 113ºF (0ºC to 45ºC)  
-4ºF to 140ºF (-20ºC to 60ºC)  
10 to 85%, Non-Condensing  
5 to 90%, Non-Condensing  
Operating Temp.  
Storage Temp.  
Operating Humidity  
Storage Humidity  
Appendix F: Specifications  
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Appendix G: 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.  
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Dual-Band Wireless-N Notebook Adapter  
Appendix H: 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  
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device  
may not cause harmful interference, and (2) this device must accept any interference received, including interference that  
may cause undesired operation.  
IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11.  
This equipment has been SAR-evaluated for use in notebooks with side slot configuration.  
FCC Radiation Exposure Statement  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must  
follow the specific operating instructions for satisfying RF exposure compliance.  
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.  
Appendix H: Regulatory Information  
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Safety Notices  
Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication line cord.  
Do not use this product near water, for example, in a wet basement or near a swimming pool.  
Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.  
Industry Canada Statement  
Operation is subject to the following two conditions:  
•
•
This device may not cause interference.  
This device must accept any interference, including interference that may cause undesired operation of the device.  
Declaration d'Industrie Canada  
Le fonctionnement est soumis aux conditions suivantes:  
•
•
Ce peripherique ne doit pas causer d'interferences  
Ce peripherique doit accepter doit accepter toutes les interferences recues, y compris celles qui risquent d'entrainer  
un fonctionnement indesirable.  
Industry Canada Radiation Exposure Statement:  
This equipment complies with Canada radiation exposure limits set forth for uncontrolled environments. This transmitter  
must not be co-located or operating in conjunction with any other antenna or transmitter.  
Avis d'Industrie Canada concernant l'exposition aux radiofréquences :  
Ce matériel est conforme aux limites établies par IC en matière d'exposition aux radiofréquences dans un environnement  
non contrôlé. L'émetteur ne doit pas être placé près d'une autre antenne ou d'un autre émetteur, ou fonctionner avec une  
autre antenne ou un autre émetteur.  
Appendix H: Regulatory Information  
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Dual-Band Wireless-N Notebook Adapter  
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic  
Equipment (WEEE)  
This document contains important information for users with regards to the proper disposal and recycling of Linksys  
products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:  
Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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Wireless-N Notebook Adapter  
For more information, visit www.linksys.com.  
Appendix H: Regulatory Information  
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Appendix I: 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:  
Or fax your request in to:  
800-546-5797 (LINKSYS)  
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:  
[email protected]  
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:  
(Details on Warranty and RMA issues can be found in the Warranty  
Information section in this Guide.)  
949-823-3000  
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