Linksys BEFSX41 manual Firewall

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Instant Broadband® Series

HBS

The HeartBeat Signal (HBS) is a service that applies to connec- tions in Australia only. (Shown in Figure 7-9.) For users in Australia, check with your ISP for setup informa- tion.

Figure 7-9

User Name and Password Enter the User Name and Password supplied by your ISP.

Heart Beat Server Enter the IP address of the Heart Beat Server. This is sup- plied by your ISP.

Connect on Demand and Max Idle Time You can configure the Router to cut your connection with your ISP after a specified period of time (Max Idle Time). If you have been disconnected due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet access disconnects.

Keep Alive Option and Redial Period If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the radio button next to Keep Alive. The default Redial Period is 30 sec- onds.

To apply any of the settings you change on a page, click the Apply button, and then click the Continue button. To cancel any values you’ve entered on any page, click the Cancel button.

EtherFast® Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint

Firewall

Figure 7-10

The Firewall Tab, shown in Figure 7-10, allows you to set the Cable/DSL Firewall Router’s level of security. Some environments require greater security while some Internet applications work better with fewer restrictions. This tab allows you to customize these settings.

Advanced Firewall Protection Enable this option to employ SPI (Stateful Packet Inspection) and DoS (Denial of Service). These functions allow for more detailed review of data packets entering your network environment and prevention of Denial of Service attacks.

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Contents User Guide Copyright & Trademarks Table of Contents Features IntroductionEnvironmental 139 IP Addresses An Introduction to LANs and WANsNetwork Setup Overview Why Do I Need a VPN?Your Virtual Private Network VPN Firewall Router to Firewall Router What is a Virtual Private Network?Router’s Back Panel PowerModem connection will not work from any other port PortsWAN and LAN LEDs Router’s Front Panel LEDsProceed to Connect the Router Router’s hardware installation is now complete Connecting Your Hardware Together and Booting UpConnect the Router OverviewConfiguring Windows 95, 98, and Millennium PCs Configure the PCsConfiguring Windows 2000 PCs Go to Configure the RouterConfiguring Windows XP PCs Configure the Router Static IP Address Obtain an IP Address AutomaticallyAdvanced Proxies. Click Direct Connection to the Internet Enter the Gateway AddressRAS PPPoECable/DSL Firewall Router’s Web-based Utility Quick and Easy Router AdministrationSetup Static IP User Name and PasswordWAN IP Firewall Block WAN Request Remote UpgradeMulticast Pass Through IPSec Pass ThroughVPN Establishing a TunnelLocal Secure Group and Remote Secure Group Remote Security Gateway Authentication EncryptionKey Management Instant Broadband Series Phase Advanced Settings for Selected IPSec TunnelPassword Other SettingsStatus Dhcp Log Help Filters AdvancedInstant Broadband Series Forwarding UPnP Forwarding Port Triggering Static Routing Dynamic RoutingDMZ Host DMZ PortDMZ Host Address MAC Address Clone Current DMZ HostDdns DynDNS.orgAppendix a Troubleshooting Common Problems and SolutionsTZO.com For Windows NT For Windows XPFor Windows 95, 98, and Me For Windows XP Am not able to access the Router’s web interface Setup Can’t get the Internet game, server, or application to work To start over, I need to set the Router to factory default Need to use port triggering Click the Advanced = Filter tabFrequently Asked Questions TCP/IP is compatible with the Router Appendix B Maximizing VPN Security Environment IntroductionWindows 2000 or Windows XP Step One Create an IPSec PolicyFilter List 1 win-router Step Two Build Filter ListsIP Address Figure C-6 Filter List 2 router=winTunnel 1 win-router Step Three Configure Individual Tunnel RulesString to Protect Negotiate Security Key exchange pre Respond Using IPSec XYZ12345. ClickShared key, as shown AcceptTunnel 2 router-win Key Exchange Action Require Security This string to protectPreshared key, XYZ12345Step Four Assign New IPSec Policy Figure C-24Figure C-28 Step Five Create a Tunnel Through the Web-based UtilityAppendix D Snmp Functions Appendix E How to Ping Your ISP’s E-mail & Web AddressesFigure E-1 TCP/IP installation is now complete Appendix F Installing the TCP/IP ProtocolFor Windows NT, 2000, and XP Figure G-1Figure G-5 Appendix H Glossary 129 131 133 135 137 Environmental Appendix I SpecificationsAppendix K Contact Information Appendix J Warranty InformationSales Information Web FTP SiteCopyright 2003 Linksys, All Rights Reserved