03-02-2010 01:46 PM - last edited on 03-25-2019 04:09 PM by ciscomoderator
Is this a true Cisco statemenet?
GRE tunnel encapsulation and deencapsulation for multicast packets are handled by the hardware in PFC3. Each hardware-assisted tunnel must have a unique source. Hardware-assisted tunnels cannot share a source even if the destinations are different.
03-02-2010 01:59 PM
It's true.
03-02-2010 02:04 PM
So the unique source address can be any pingable interface and don't have to be a loopback, is that correct?
03-02-2010 02:18 PM
In our case, we had two WAN links to our routers. Tunnel 0 source is F0/0 (/30) and Tunnel 1 source is F0/1 (/30).
Does this make sense?
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: