Linksys WRT350N manual Appendix B Wireless Security, Security Precautions

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Wireless-N Gigabit Router with Storage Link

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 PSK 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 5: Configuring the Wireless-N Gigabit

Router with Storage Link.”

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.

Appendix B: Wireless Security

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Security Precautions

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Contents Wireless- N Copyright and Trademarks How to Use This User GuideWord definition Table of Contents Appendix a Troubleshooting Appendix B Wireless SecurityCommon Problems and Solutions Frequently Asked Questions Appendix C Upgrading Firmware Appendix D Windows HelpList of Figures Router’s Back Panel25 VPN Passthrough 59 Administration Tab Firmware Upgrade Introduction WelcomeWhat’s in this User Guide? Wireless-N Gigabit Router with Storage Link Planning Your Wireless Network Ad-Hoc versus Infrastructure ModeSsid service set identifier your wireless network’s name Network TopologyNetwork Layout Back Panel InternetFront Panel Top PanelConnecting the Wireless-N Gigabit Router with Storage Link Hardware InstallationSetup Configuring the Wireless-N Gigabit Router with Storage LinkOverview Wireless Access RestrictionsSecurity StorageHow to Access the Web-based Utility Setup Tab Basic SetupAdministration StatusInternet Setup Automatic Configuration DhcpInternet Connection Type Static IPPptp Telstra Cable Optional SettingsPacket a unit of data sent over a network Dhcp Server Setting Network SetupRouter IP Time Setting Dhcp ReservationDdns Service Setup Tab DdnsDynDNS.org 10 Setup Tab TZO.com TZO.comSetup Tab MAC Address Clone MAC Address CloneSetup Tab Advanced Routing Advanced RoutingDynamic Routing Static Routing13 Routing Table Wireless Tab Basic Wireless Settings Basic Wireless SettingsWireless Tab Wireless Security Wireless SecurityPSK-Personal PSK2-PersonalPSK-Enterprise PSK2-EnterpriseRadius Wireless Tab Wireless MAC Filter Wireless MAC FilterAccess Restrictions MAC Address Filter ListWireless Tab Advanced Wireless Settings Advanced WirelessWireless-N Gigabit Router with Storage Link Security Tab Firewall Internet FilterWeb Filter FirewallSecurity Tab VPN Passthrough VPN PassthroughStorage Tab Disk Disk ManagementDisk Detail Erase DiskStorage Tab Share Share ManagementShares Create ShareStorage Tab Administration BasicUser Management Group Management33 User Properties Setup Storage Tab Media ServerUPnP Media Server DatabaseFTP Server AccessShare Internet Access Policy Access Restrictions Tab Internet Access PolicyTo create a policy 40 List of PCs Applications & 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 DMZQoS Quality of Service WirelessInternet Access Priority Applications and Gaming Tab QoS47 QoS Applications Add a New Application Summary 51 QoS Voice DeviceAdministration Tab Management Router AccessWeb Access Remote AccessBackup and Restore UPnPAdministration Tab Log LogAdministration Tab Diagnostics 55 Administration Tab DiagnosticsAdministration Tab Factory Defaults Factory DefaultsAdministration Tab Firmware Upgrade Upgrade FirmwareRouter Information Status Tab RouterInternet Connection Status Tab Local Network Local NetworkStatus Tab Wireless 63 Status Tab Wireless NetworkCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a PC Wireless-N Gigabit Router with Storage Link Open a command prompt. For Windows 98SE and Me Protocol To IP Address Enabled Application NameApplication Name Start and End Port Can’t get the Internet game, server, or application to workWireless-N Gigabit Router with Storage Link To start over, I need to set the Router to factory defaults Need to upgrade the firmwareFirmware upgrade failed, and/or the Power LED is flashing My DSL service’s PPPoE is always disconnectingPower LED keeps flashing Frequently Asked Questions Where is the Router installed on the network?Is IPSec Pass-Through supported by the Router? Does the Router support IPX or AppleTalk?How can I block corrupted FTP downloads? What is DMZ Hosting? What are the advanced features of the Router?Will the Router function in a Macintosh environment? Is the Router cross-platform compatible?What is the Ieee 802.11g standard? What is the Ieee 802.11b standard?What Ieee 802.11g features are supported? What Ieee 802.11b features are supported?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? What is a MAC Address?How do I reset the Router? 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 Router with Storage Link Figure C-1 Firmware Upgrade Appendix C Upgrading FirmwareShared Resources Appendix D Windows HelpNetwork Neighborhood/My Network Places Figure E-1 IP Configuration Screen Windows 98SE or Me InstructionsWindows 2000 or XP Instructions For the Router’s Web-based UtilityAppendix F Glossary Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Appendix G Specifications ModelOperating Temp Storage TempOperating Humidity Storage HumidityAppendix H Warranty Information Limited WarrantyAppendix I Regulatory Information FCC StatementWireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Wireless-N Gigabit Router with Storage Link Need to contact Linksys? Appendix J Contact InformationInformation section in this Guide