ZyXEL P-792H v2 User Guide - Page 76
WAN Technical Reference
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Chapter 6 WAN Setup Table 17 Network > Internet (WAN) > WAN Backup LABEL DESCRIPTION Recovery Interval When the P-792H v2 is using a lower priority connection (usually a WAN backup connection), it periodically checks whether or not it can use a higher priority connection. Type the number of seconds (30 recommended) for the P-792H v2 to wait between checks. Allow more time if your destination IP address handles lots of traffic. Timeout Type the number of seconds (3 recommended) for your P-792H v2 to wait for a ping response from one of the IP addresses in the Check WAN IP Address field before timing out the request. The WAN connection is considered "down" after the P-792H v2 times out the number of times specified in the Fail Tolerance field. Use a higher value in this field if your network is busy or congested. Traffic Redirect Traffic redirect forwards traffic to a backup gateway when the P792H v2 cannot connect to the Internet. Active Traffic Redirect Select this check box to have the P-792H v2 use traffic redirect if the normal WAN connection goes down. Metric Backup Gateway Apply Cancel Note: If you activate traffic redirect, you must configure at least one Check WAN IP Address. This field sets this route's priority among the routes the P-792H v2 uses. The metric represents the "cost of transmission". A router determines the best route for transmission by choosing a path with the lowest "cost". RIP routing uses hop count as the measurement of cost, with a minimum of "1" for directly connected networks. The number must be between "1" and "15"; a number greater than "15" means the link is down. The smaller the number, the lower the "cost". Type the IP address of your backup gateway in dotted decimal notation. The P-792H v2 automatically forwards traffic to this IP address if the P-792H v2's Internet connection terminates. Click Apply to save the changes. Click Cancel to begin configuring this screen afresh. 6.5 WAN Technical Reference This section provides some technical background information about the topics covered in this chapter. 6.5.1 Encapsulation Be sure to use the encapsulation method required by your ISP. The P-792H v2 supports the following methods. 76 P-792H v2 User's Guide