Linksys WUSB300N manual Appendix C Wireless Security, Security Precautions

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Wireless-N USB Network Adapter

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 Wireless Network Name (SSID).

2.Disable SSID Broadcast.

3.Change the default password for the Administrator account.

4.Enable MAC Address Filtering.

5.Change the SSID periodically.

6.Use the highest encryption algorithm possible. Use WPA or 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

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.

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Security Precautions

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Contents GHz Copyright and Trademarks Word definitionTable of Contents Wireless-N USB Network Adapter List of Figures Front Panel10 Creating a Profile What’s in this User Guide? IntroductionWelcome Adapter a device that adds network functionality to your PCIntroduction What’s in this User Guide? Roaming Planning your Wireless NetworkNetwork Topology Topology the physical layout of a networkNetwork Layout Getting to Know the Wireless-N USB Network Adapter LED IndicatorsUSB Extension Base USB Extension BaseSetting up and Connecting the Wireless-N USB Network Adapter Starting the SetupConnecting the Adapter Setting up the AdapterWEP Key Needed for Connection PSK2 Needed for Connection Advanced Setup WEP PSK PSK+RADIUS PSK2+RADIUS Radius 22 Confirm New Settings Wireless Network Status screen Using the Wireless Network MonitorAccessing the Wireless Network Monitor Link InformationWireless Network Status Wireless Network Statistics Connect Site InformationProfiles Profile InformationCreate a New Profile 10 Creating a Profile12 PSK Needed for Connection 15 Available Wireless Networks 17 Wireless Mode 19 Wireless Security WEP 20 Wireless Security PSK 23 Wireless Security PSK+RADIUS Peap Peap 26 Wireless Security Radius EAP-TLS 28 Confirm New Settings Frequently Asked Questions Appendix a TroubleshootingCommon Problems and Solutions What is the 802.11b standard?What Ieee 802.11g features are supported? What is the Ieee 802.11g standard?What 802.11b features are supported? What is ad-hoc mode?What is DSSS? What is FHSS? And what are their differences? What is ISM band?What is Spread Spectrum? What is WEP?What is WPA2? What is WPA?What is RADIUS? Appendix B Windows XP Wireless Zero Configuration Windows XP Wireless Zero ConfigurationFigure B-4 Available Wireless Network Figure B-6 Network Connection Wireless Security Security Precautions Appendix C Wireless SecuritySecurity Threats Facing Wireless Networks Appendix C Wireless Security Wireless-N USB Network Adapter Appendix D Windows Help TCP/IPAppendix E Glossary Wireless-N USB Network Adapter Wireless-N USB Network Adapter Wireless-N USB Network Adapter Wireless-N USB Network Adapter Appendix F Specifications USBStorage Temp Appendix G Warranty Information Limited WarrantyAppendix H Regulatory Information FCC StatementImportant Note Wireless-N USB Network Adapter Wireless-N USB Network Adapter Wireless-N USB Network Adapter Wireless-N USB Network Adapter Wireless-N Notebook Adapter Appendix I Contact Information