P-662H/HW-D Series User’s Guide

Figure 50 WAN Backup Setup

The following table describes the labels in this screen.

Table 27 WAN Backup Setup

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

Configure this field to test your ZyXEL Device's WAN accessibility. Type the IP

Address1-3

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.

Chapter 5 WAN Setup

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