Summary of Multi-WAN Requirements¶
Before covering the bulk of multi-WAN specifics, here is a short summary of the requirements to make a fully implemented multi-WAN setup:
Create a gateway group under System > Routing on the Groups tab
Set a failover gateway group for the default gateway as described in Managing the Default Gateway (Technically optional but a best practice)
Configure the DNS Resolver or Forwarder for Multi-WAN, starting by:
Use a failover gateway group for the default gaetway (DNS Resolver in default resolver mode)
Set at least one unique DNS server for each WAN gateway under System > General Setup with a gateway set (DNS Resolver in forwarding mode or DNS Forwarder)
Use the gateway group on LAN firewall rules