Linksys WPC300N manual Appendix C Wireless Security, Security Precautions

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Wireless-N Notebook 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 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 Word definition How to Use this User GuideCopyright and Trademarks Table of Contents Wireless-N Notebook Adapter Front Panel Setup Wizard’s Welcome Screen11 WEP Key Needed for Connection Welcome IntroductionWhat’s in this User Guide? Adapter a device that adds network functionality to your PCIntroduction What’s in this User Guide? Network Topology Planning your Wireless NetworkRoaming Topology the physical layout of a networkNetwork Layout LED Indicators Getting to Know the Wireless-N Notebook AdapterStarting the Setup Setting up and Connecting the Wireless-N Notebook AdapterSetting up the Adapter Connecting the AdapterWPA Personal Needed for Connection WPA2 Personal Needed for Connection Available Wireless Network Advanced SetupWEP WPA2 Personal WPA PersonalRadius 18 Confirm New Settings Accessing the Wireless Network Monitor Using the Wireless Network MonitorWireless Network Status screen Link InformationWireless Network Status More Information Network Statistics Wireless Network StatisticsSite Information ConnectProfile Information Profiles10 Creating a Profile Create a New Profile12 WPA Personal Needed for Connection 15 Available Wireless Networks 17 Wireless Mode 19 Wireless Security WEP 20 Wireless Security WPA Personal 22 Wireless Security Radius EAP-TLS 24 Confirm New Settings Common Problems and Solutions Appendix a TroubleshootingFrequently Asked Questions Wireless-N Notebook Adapter does not work properlyWhat 802.11b features are supported? What is the Ieee 802.11g standard?What Ieee 802.11g features are supported? What is ad-hoc mode?What is Spread Spectrum? What is ISM band?What is DSSS? What is FHSS? And what are their differences? What is WEP?What is RADIUS? What is WPA?Windows XP Wireless Zero Configuration Appendix B Windows XP Wireless Zero ConfigurationFigure B-4 Available Wireless Network Figure B-6 Network Connection Wireless Security Security Threats Facing Wireless Networks Appendix C Wireless SecuritySecurity Precautions Appendix C Wireless Security Wireless-N Notebook Adapter Network Neighborhood/My Network Places Appendix D Windows HelpShared Resources Appendix E Glossary Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Channels most of Europe and Asia Appendix F SpecificationsStorage Humidity Operating HumidityAppendix G Warranty Information FCC Statement Appendix H Regulatory InformationWireless-N Notebook Adapter Wireless-N Notebook Adapter Applicable Power Levels in France Open the Wireless Network Connection window Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Wireless-N Notebook Adapter Europe Mail Address Appendix I Contact InformationOutside of Europe Mail Address
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