ZyXEL p-660hwp User Guide

Chapter 5 WAN Setup

P-660HWP-Dx User’s Guide

Figure 52   WAN Backup Setup

The following table describes the labels in this screen.  

Table 25   WAN Backup Setup

WAN Backup 

Setup

Backup Type 

Select the method that the P-660HWP-Dx uses to check the DSL connection. 
Select DSL Link to have the P-660HWP-Dx check if the connection to the DSLAM 

is up. Select ICMP to have the P-660HWP-Dx periodically ping the IP addresses 

configured in the Check WAN IP Address fields.

Check WAN IP 

Address1-3

Configure this field to test your P-660HWP-Dx's WAN accessibility. Type the IP 

address of a reliable nearby computer (for example, your ISP's DNS server 

address). 

When using a WAN backup connection, the P-660HWP-Dx 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 P-660HWP-Dx 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 P-660HWP-Dx 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 P-660HWP-Dx to wait 

between checks. Allow more time if your destination IP address handles lots of 

traffic.