Cisco Systems WRTP54G manual Appendix B Wireless Security, Security Precautions

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Wireless-G Broadband Router with 2 Phone Ports

Appendix B: Wireless Security

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

Security Precautions

The following is a complete list of security precautions to take (at least steps 1 through 5 should be followed):

1.Change the default SSID.

2.Disable SSID Broadcast.

3.Change the default password for the Administrator account.

4.Enable MAC Address Filtering.

5.Change the SSID periodically.

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.

For information on implementing these security features, refer to “Chapter 6: Configuring the Router.”

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.

Appendix B: Wireless Security

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Security Precautions

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Contents Division of Cisco Systems, Inc Wireless- GPage How to Use this Guide Copyright and TrademarksWord definition Wireless-G Broadband Router with 2 Phone Ports Table of Contents Vonage 103 Linksys Appendix C Finding the MAC Address and IPWireless Security Wireless Security RadiusWireless Security WEP Wireless MAC Filter37 Dhcp Active IP Table Welcome IntroductionWhat’s in this Guide? Introduction What’s in this Guide? Wireless-G Broadband Router with 2 Phone Ports Network Topology Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Ssid your wireless network’s nameNetwork Layout Back Panel Getting to Know the RouterFront Panel PowerOverview Connecting the RouterConnect the Modem Connection InstructionsStand Option Placement OptionsMeasurement between Wall-Mount Slots Wall-Mount OptionConfiguring the Router Setup WirelessSecurity Status Access RestrictionsAdministration Applications & GamingVoice How to Access the Web-based UtilityObtain an IP automatically Setup Tab Basic SetupInternet Setup Internet Connection TypeStatic IP Network Setup Optional SettingsPacket a unit of data sent over a network Router IP Network Address Server Settings DhcpTime Setting Setup Tab DdnsTZO.com DynDNS.orgMAC Clone Setup Tab MAC Address CloneAdvanced Routing Setup Tab Advanced Routing10 Routing Table Entry List Wireless Settings Wireless Tab Basic Wireless SettingsWireless Security Wireless Tab Wireless Security13 Wireless Tab Wireless Security WPA-RADIUS 15 Wireless Tab Wireless Security WEP Wireless MAC Filter Wireless Tab Wireless MAC FilterAdvanced Wireless Settings Wireless Tab Advanced Wireless SettingsWireless-G Broadband Router with 2 Phone Ports Web Filters Security Tab FirewallFilter MAC Address Access Restrictions Tab FilterFilter IP Address Range Filter Port RangeBlock WAN Requests Access Control Access Restrictions Tab Device Access ControlApplications & Gaming Tab Port Range Forwarding Port Range ForwardingPort Range Applications & Gaming Tab Port Triggering Port TriggeringTriggered Range Applications & Gaming Tab UPnP Forwarding UPnP ForwardingForwarded Range Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports DMZ Applications & Gaming Tab DMZIP QoS Applications & Gaming Tab QoS29 QoS Create Rule UPnP Administration Tab ManagementRouter Password Local Router AccessLog Administration Tab Log32 Administration Tab Factory Defaults Administration Tab Factory DefaultsAdministration Tab Diagnostics Ping TestTraceroute Test Local Network Status Tab Local NetworkInformation Status Tab RouterStatus Tab Router 39 Status Tab Wireless Status Tab WirelessStatus Tab Voice Line1 StatusLine2 Status 42 Voice Tab Voice TabCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a PC For Windows 98 and MillenniumFor Windows XP For WindowsWant to test my Internet connection For Windows XP Wireless-G Broadband Router with 2 Phone Ports Am not able to access the Router’s Web-based Utility Setup Need to set up a server behind my Router TCP Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work Appendix a Troubleshooting Common Problems and Solutions For Netscape 4.7 or higher To start over, I need to set the Router to factory defaultMy DSL service’s PPPoE is always disconnecting For Microsoft Internet Explorer 5.0 or higherWireless-G Broadband Router with 2 Phone Ports Go through this checklist until your problem is solved Can I make calls if my Internet connection is down? Frequently Asked QuestionsWhere is the Router installed on the network? How do I make a phone call?What is Network Address Translation and what is it used for? How can I block corrupted FTP downloads? If all else fails in the installation, what can I do? What is DMZ Hosting?Will the Router function in a Macintosh environment? Which modems are compatible with the Router? What is the Ieee 802.11b standard?Is the Router cross-platform compatible? How many ports can be simultaneously forwarded?What is the Ieee 802.11g standard? What Ieee 802.11b features are supported?What Ieee 802.11g features are supported? What is ad-hoc mode? What is infrastructure mode?What is roaming? What is ISM band? What is Spread Spectrum? What is DSSS? What is FHSS? And what are their differences? How do I reset the Router? What is WEP?What is WPA? What is a MAC Address?How many channels/frequencies are available with the Router? Have excellent signal strength, but I cannot see my networkSecurity Precautions Appendix B Wireless SecuritySecurity Threats Facing Wireless Networks Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Windows 98 or Me Instructions Figure C-1 IP Configuration ScreenFor the Router’s Web-based Utility Windows 2000 or XP InstructionsAppendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix D Windows Help Appendix E Glossary Appendix E Glossary Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Appendix F Specifications Warranty Year Limited Operating HumidityStorage Humidity Limited Warranty Appendix G Warranty InformationAppendix G Warranty Information Federal Communication Commission Interference Statement Appendix H Regulatory InformationImportant Note 101 Safety Notices Need to contact Vonage? Appendix I Contact InformationVonage LinksysLinksys