I have remote sites that are connected to our office via 2830's VPN over ADSL. As the adsl here is getting worst I want to route the inter-site traffic over our private microwave network. This is used at the moment to provide island wide guest Wifi which is on a VLAN. I need to set a new VLAN for the inter-site traffic but this will not have a DHCP server on it and cannot be on the management VLAN0.

Can this be done with WAN2? if so how as when I'm tagging the WAN2 port with the correct VLAN and using a static IP the router doesn't see the connection

Many thanks in advance