24: Configuring Multi-WAN 
_______________________________________________________________________________________________________ 
_____________________________________________________________________________________________________ 
© Virtual Access 2017 
GW1000 Series User Manual 
Issue: 1.9    Page 179 of 350 
24 Configuring Multi-WAN 
Multi-WAN is used for managing WAN interfaces on the router, for example, 3G 
interfaces to ensure high-availability. You can customise Multi-WAN for various needs, 
but its main use is to ensure WAN connectivity and provide a failover system in the 
event of failure or poor coverage.  
Multi-WAN periodically does a health check on the interface. A health check comprises of 
a configurable combination of the following: 
  interface state 
  pings to an ICMP target 
  signal level checks using signal threshold, RSCP threshold and ECIO threshold 
option values 
A fail for any of the above health checks, results in a fail. After a configurable number of 
health check failures, Multi-WAN will move to the next highest priority interface. Multi-
WAN will optionally stop the failed interface and start the new interface, if required. 
In some circumstances, particulary in mobile environments, it is desirable for a primary 
interface to be used whenever possible. In this instance Multi-WAN will perform a health 
check on the primary interface after a configurable period. If the health checks pass for 
the configured number of recovery health checks then the primary will be used.  
24.1  Configuration package used 
24.2  Configuring Multi-WAN using the web interface 
In the top menu, select Network -> Multi-Wan. The Multi-WAN page appears. 
 
Figure 96: The multi-WAN page