Routing protocols over Wireless Bridge

[stackcs]

We have two Cisco 2600 routers, each with 3 ethernet interfaces, one in each of our buildings. One interface on each goes onto that routes local lan, one router on each goes to a 2MB wireless radio bridge and one goes to a wireless 100MB laser bridge. OSPF is ran accross the routers so that they can route into each local network. Today the weather has been quite bad and the line of sight for the laser link as gone so the link has dropped, unfortunatly the laser equipment spoofs the keep-a-lives at each end so neither router know that the link is really down. Is there a way for the routers to monitor end-to-end connectivity rather than just the interface status? maybe a different routing protocol?

Thanks

 

[KiscoKid]

I admit I'm a bit puzzled by when you say 'the laser equipment spoofs the keep-a-lives at each end so neither router know that the link is really down'

OSPF tries to constantly communicate with all its neighbors. The methof of communicating is through Hello packets. I've never heard of the like before but do you believe the laser equipment is spoofing OSPF hellos? That would require the bridge to be aware of what the OSPF DR/BDR's are, what the configured hello interval is, whether the area is a stub or not. As you can appreciate, it would need a lot more intelligence than I'd normally associate with a simple wireless bridge.

I wonder if you would check your OSPF config on either router. Is the interface of each router that directly connects into the wireless bridge enabled for OSPF (use 'show ip ospf interface' to verify)? You can also verify this by issuing the 'show ip ospf neighbor' command and verify you can see the other router via the wireless bridge.