NAT with multiple WAN interfaces

[Daniel Graham]

Is this possible?

routerA connects to routerB witch connects to routerC and back to routerA.

RouterA connects to the WAN or (internet)

Each router has three interfaces.

The loop is for redundancy in case of a circuit outage.

All routers run OSPF.

routerB performs NAT for networkB

routerC performs NAT for networkC

Question is:

Is it possible to define (ip nat outside) on both of the (WAN) interface connections on routerB and routerC?

Goal is to have the NAT service work regardless of what external interface is being used.

Thanks,

[johnnylingo]

Yes, I don't see any problem with that. If I'm understanding correctly:

NetworkB traffic goes out through RouterB, which gets NATTed and passed to RouterA, which is connected to the Internet.

NetworkC traffic goes out through RouterC, which gets NATTed and passed to RouterA, which is connected to the Internet.