How to debug ICMP-Echo?

[admin_2]

I really only see echo replies but no echos if I do a "debug ip icmp".

[#2]

You would need "debug ip packet detail"

to see all ICMP messages. Careful,

this can be very verbose output.

[yusuff]

"debug ip packet detail" will kill the router if it is in production and traffic load.

I would recommend to create an extended access-list for source/destination you are pinging.

eg;

access-list 101 permit icmp host 11.11.11.11 host 22.22.22.22

debug ip packet 101 detail

The above will only show detailed ICMP debugging between the 2 hosts specified in the ACL.

HTH

R/Yusuf