ZyXEL Communications P-793H User Manual

 Chapter 5 WAN Setup

P-793H User’s Guide

Figure 34   WAN > WAN Backup Setup

The following table describes the labels in this screen. 

Table 21   WAN > WAN Backup Setup

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 

Address 1-3

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 pings 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.