We have two sites (essentially two small buildings side by side but we are unable to run CAT5 cable between them) which are currently linked via a wireless bridge. We will be splitting the sites so they are more independent, i.e a DHCP scope per site, and a WAN connection per site (rather than now everything from Site B routing over the bridge to the default gateway in SiteA).
Site A 172.16.30.0/24 Site B 172.16.32.0/24
How can you setup a wireless bridge between two sites where the subnets are different in each site? This is on the assumption each site will have a firewall like a Sonicwall (with 4 LAN/WAN interfaces) capable of doing the routing that would be required, but it's the routing that would be required I am failing to quite grasp.
I appreciate in this above situation we could simply setup a Site-to-Site VPN connection but we want to keep the wireless bridge in place between the Sonic's in the scenario the WAN link goes down and either end.