R1# debug ip icmp ICMP packet debugging is on R1# ping 10.0.0.10 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms *Nov 13 12:56:08.147: ICMP: echo reply rcvd, src 10.0.0.10, dst 10.0.0.1, topology BASE, dscp 0 topoid 0 *Nov 13 12:56:08.151: ICMP: echo reply rcvd, src 10.0.0.10, dst 10.0.0.1, topology BASE, dscp 0 topoid 0 *Nov 13 12:56:08.151: ICMP: echo reply rcvd, src 10.0.0.10, dst 10.0.0.1, topology BASE, dscp 0 topoid 0 *Nov 13 12:56:08.151: ICMP: echo reply rcvd, src 10.0.0.10, dst 10.0.0.1, topology BASE, dscp 0 topoid 0 *Nov 13 12:56:08.151: ICMP: echo reply rcvd, src 10.0.0.10, dst 10.0.0.1, topology BASE, dscp 0 topoid 0 R1# undebug all All possible debugging has been turned off R1# ]]>