- Silver, 250 points or more
I have a NAM module in a remote C6k, which connects to the management networks through a newly-configured GRE tunnel (the tunnel replaces a dedicated point-to-point routed link for the private network. However, we now cannot ping the Management interface of the NAM through the GRE tunnel - I can ping it from the local switch and using the source address of the tunnel, but not from the other switch through the GRE tunnel. Other devices in the same VLAN are accessible through the GRE tunnel; just not the NAM. Could this be similar to the re-circulation of GRE packets which I've seen in MPLS-enabled network which also use GRE?