[B.A.T.M.A.N.] Bridging multiple mesh segments across WAN

Hi All,

I've partially covered a large site in routers running batman-adv. The mesh is used for mobile access to equipment on a static site copper and fibre network around the site. A few of the routers have WAN connections to the site network. The routers with WAN connections are configured as gateways in batman-adv. There are gaps in the mesh; typically there is no route between WAN-connected routers via the mesh.

I would like to join up the separate mesh segments, via the site network, such that a client to one segment can ping a client of another network, having the traffic transparently tunnel via the WAN. Has anyone looked at doing this in the past?

Thanks, Travis.