122 Chapter 7 WAN screensNN47922-500Configuring Dial BackupTo change your Business Secure Router’s Dial Backup settings, click WAN, thenthe Dial Backup tab. The screen appears as shown in Figure 32.Check WAN IPAddressConfiguration of this field is optional. If you do not enter an IP addresshere, the Business Secure Router uses the default gateway IPaddress. Configure this field to test your Business Secure Router'sWAN accessibility. Type the IP address of a reliable nearby computer(for example, your ISP's DNS server address). If you are using PPTP orPPPoE Encapsulation, type 0.0.0.0 to configure the Business SecureRouter to check the PVC (Permanent Virtual Circuit) or PPTP tunnel.Fail Tolerance Enter the number of times Business Secure Router will attempt toconnect to the Internet before traffic is forwarded to the backupgateway.Period (sec) Type the number of seconds for the Business Secure Router to waitbetween checks to see if it can connect to the WAN IP address (CheckWAN IP Address field) or default gateway. Allow more time if yourdestination IP address handles lots of traffic.Timeout (sec) Type the number of seconds for your Business Secure Router to waitfor a ping response from the IP Address in the Check WAN IPAddress field before it times out. The WAN connection is considereddown after the Business Secure Router times out the number of timesspecified in the Fail Tolerance field. Use a higher value in this field ifyour network is busy or congested.Apply Click Apply to save your changes to the Business Secure Router.Reset Click Reset to begin configuring this screen afresh.Table 23 Traffic RedirectLabel Description
