On Wed, 12 Oct 2005, Shoebottom, Bryan wrote:
I am not sure how to tell if the GRE decapsulation is working properly. Running the tcpdump I can see: I can see the cache sending a 52 (length) udp port 2048 to the router on udp 2048, and immediately after the exact opposite, except the length is 64. This happens every 10-11 seconds. How can I tell if the GRE decapsulation is working properly?
If the router is redirecting packets properly you should see GRE packets in your tcpdump whenever there is client traffic, not only the WCCP UDP control channel packets.
Regards Henrik
