Linksys WRT330N manual Appendix B Wireless Security, Security Precautions

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Wireless-N Gigabit Gaming Router

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 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 PSK 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 B: 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 Wireless- N Copyright and Trademarks How to Use This User GuideWord definition Table of Contents Common Problems and Solutions Frequently Asked Questions Appendix a TroubleshootingAppendix B Wireless Security Appendix C Upgrading Firmware Appendix D Windows HelpRouter’s Back Panel Router’s Front Panel26 Security Tab VPN Passthrough Introduction WelcomeWhat’s in this User Guide? Wireless-N Gigabit Gaming Router Ssid service set identifier your wireless network’s name Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Network TopologyPlanning Your Wireless Network Network Layout Getting to Know the Wireless-N Gigabit Gaming Router Back PanelFront Panel Top PanelConnecting the Wireless-N Gigabit Gaming Router Hardware InstallationConfiguring the Wireless-N Gigabit Gaming Router OverviewWireless How to Access the Web-based Utility StatusNetwork Address Server Settings Dhcp Setup Tab Basic SetupOptional Settings Required by some ISPs Internet Connection TypeTime Setting Packet a unit of data sent over a networkSetup Tab Basic Setup Static IP Setup Basic Setup Static IPSetup Tab Basic Setup PPPoE Seup Basic Setup PPoE SettingsWireless-N Gigabit Gaming Router Setup Tab Basic Setup Pptp Setup Basic SetuppptpWireless-N Gigabit Gaming Router Setup Tab Basic Setup Telstra BigPond Setupbasic Setup Telstra BigPondSetup Tab Dynamic DNS Dynamic DNSSetup Tab MAC Address Clone Mac CloningDynamic Routing Setup Tab Advanced RoutingStatic Routing Wireless Tab Basic Wireless Settings Wireless SettingWireless Tab Wireless Security Wireless SecurityPSK Enterprise WEP Wireless MAC Filter Wireless Tab Wireless MAC FilterAccess Restrictions Wireless Tab Advanced Wireless Settings Advanced Wireless SettingQoS Wireless Tab QoSAdd/Edit Wireless QoS Rules Priority ClassifiersWireless QoS Rule List Firewall Security Tab FirewallBlock WAN Request Security Tab VPN Passthrough VPN PassthroughApply Policy Access Restrictions Tab Internet Access PolicyInternet Access ScheduleBlocked Applications Three applications can be blocked per PolicyApplications & Gaming Tab Single Port Forwarding Single Port ForwardingApplications & Gaming Tab Port Range Forwarding Port Range ForwardingApplications & Gaming Tab Port Range Triggering Port Range TriggeringApplications & Gaming Tab DMZ DMZApplications & Gaming Tab QOS QoS Quality of ServiceAdd QoS Rule QoS Rule List Https Web Access Administration Tab- ManagementLocal Router Access Remote Router AccessReboot MulticastLog Options Administration Tab LOGLog Details Ping Test Administration Tab DiagnosticsTraceroute Test Administration Tab Factory Default Factory DefaultsAdministration Tab Firmware Upgrade Firmware UpgradeRouter Status Status Tab RouterInternet Connections Status Tab Local Network Local Network StatusStatus Tab Wireless Network Wireless StatusCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a PC Wireless-N Gigabit Gaming Router Open a command prompt. For Windows 98SE and Me Protocol To IP Address Enabled TCPCan’t get the Internet game, server, or application to work Wireless-N Gigabit Gaming Router Firmware upgrade failed, and/or the Power LED is flashing To start over, I need to set the Router to factory defaultsNeed to upgrade the firmware My DSL service’s PPPoE is always disconnectingPower LED keeps flashing Is IPSec Pass-Through supported by the Router? Frequently Asked QuestionsWhere is the Router installed on the network? Does the Router support IPX or AppleTalk?How can I block corrupted FTP downloads? Will the Router function in a Macintosh environment? What is DMZ Hosting?What are the advanced features of the Router? Is the Router cross-platform compatible?What Ieee 802.11g features are supported? What is the Ieee 802.11g standard?What is the Ieee 802.11b standard? What Ieee 802.11b features are supported?What is ISM band? What is infrastructure mode?What is roaming? What is Spread Spectrum?How do I reset the Router? What is DSSS? What is FHSS? And what are their differences?What is a MAC Address? How do I resolve issues with signal loss?Security Precautions Appendix B Wireless SecuritySecurity Threats Facing Wireless Networks Appendix B Wireless Security Wireless-N Gigabit Gaming Router Figure C-1 Firmware Upgrade Appendix C Upgrading FirmwareShared Resources Appendix D Windows HelpNetwork Neighborhood/My Network Places Windows 2000 or XP Instructions Wireless MAC Filter For the Router’s Web-based UtilityFigure E-3 MAC Address/Physical Address Appendix F Glossary Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Model Appendix G SpecificationsStandards Operating Humidity Operating TempStorage Temp Storage HumidityAppendix H Warranty Information Limited WarrantyAppendix I Regulatory Information FCC StatementWireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Wireless-N Gigabit Gaming Router Appendix J Contact Information