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P-660R-Tx v2 Series User’s Guide
63 Chapter 6 WAN Setup
Figure 22 WAN Backup
The following table describes the labels in this screen.
Table 13 WAN Backup
LABEL DESCRIPTION
Backup Type Select the method that the ZyXEL Device uses to check the DSL connection.
Select DSL Link to have the ZyXEL Device check if the connection to the DSLAM is
up. Select ICMP to have the ZyXEL Device periodically ping the IP addresses
configured in the Check WAN IP Address fields.
Check WAN IP
Address1-3
Configure this field to test your ZyXEL Device's WAN accessibility. Type the IP
address of a reliable nearby computer (for example, your ISP's DNS server
address).
Note: If you activate either traffic redirect or dial backup, you must
configure at least one IP address here.
When using a WAN backup connection, the ZyXEL Device periodically pings the
addresses configured here and uses the other WAN backup connection (if
configured) if there is no response.
Fail Tolerance Type the number of times (2 recommended) that your ZyXEL Device may ping the
IP addresses configured in the Check WAN IP Address field without getting a
response before switching to a WAN backup connection (or a different WAN backup
connection).
Recovery Interval When the ZyXEL Device is using a lower priority connection (usually a WAN backup
connection), it periodically checks to whether or not it can use a higher priority
connection.
Type the number of seconds (30 recommended) for the ZyXEL Device to wait
between checks. Allow more time if your destination IP address handles lots of
traffic.