About the GRE Tunnel

Unanswered Question
Mar 2nd, 2010
User Badges:

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.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Leo Laohoo Tue, 03/02/2010 - 13:59
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

It's true.

nawas Tue, 03/02/2010 - 14:04
User Badges:

So the unique source address can be any pingable interface and don't have to be a loopback, is that correct?

Leo Laohoo Tue, 03/02/2010 - 14:18
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

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?

Actions

This Discussion