ICMP
Also written: ICMP echo request, ICMP echo reply, icmp_seq
A helper protocol for test and error messages. ping sends ICMP echo requests and gets echo replies back, and routers send ICMP "time exceeded" messages.
Also written: ICMP echo request, ICMP echo reply, icmp_seq
A helper protocol for test and error messages. ping sends ICMP echo requests and gets echo replies back, and routers send ICMP "time exceeded" messages.