Is there any specific reason or something I can check to see why I do not receive a Hello message reply from a multicast neighbor that is on the other side of a GRE tunnel? I get the following error when I debug ip pim:
PIM(0): Neighbor x.x.x.x (Tunnel0) timed out
Oct 14 12:07:34.417 CDT: %PIM-5-NBRCHG: neighbor x.x.x.x DOWN on interface Tunnel0 non DR
Just trying to verify that this issue is not on my side? Any help would be appreciated. TIA.