Configuring Dial Backup - ZyXEL Communications ZyWALL 5 User Manual

ZyWALL 5 Internet Security Appliance
LABEL
Metric This field sets this route's priority among the routes the ZyWALL 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".
Check WAN IP Configuration of this field is optional. If you do not enter an IP address here, the ZyWALL will
Address use the default gateway IP address. Configure this field to test your ZyWALL's WAN
accessibility. Type the IP address of a reliable nearby computer (for example, your ISP's
DNS server address).
Fail Tolerance Type the number of times your ZyWALL may attempt and fail to connect to the Internet
before traffic is forwarded to the backup gateway.
Period Type the number of seconds for the ZyWALL to wait between checks to see if it can connect
(seconds) to the WAN IP address (Check WAN IP Address field) or default gateway. Allow more time
if your destination IP address handles lots of traffic.
Timeout Type the number of seconds for your ZyWALL to wait for a ping response from the IP
(Seconds) address in the Check WAN IP Address field before it times out. The WAN connection is
considered "down" after the ZyWALL 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.
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
7.7

Configuring Dial Backup

To change your ZyWALL's Dial Backup settings, click WAN, then the Dial Backup tab. The screen
appears as shown.
7-12
Table 7-5 Traffic Redirect
DESCRIPTION
WAN Screens