Quick Q, Trace.rt/route operates at what Layer?

LBC90805

Was looking for what layer traceroute/tracert operate at? Would it be the network layer since since it uses ping to work?

Netstudent

A traceroute uses ICMP time exceeded messages to display a hop by hop output. It starts by sending out a few packets with a TTL of 0, so when the first hop sees the ICMP packets, it sees that the TTL is at the end of it;s life so it drops the packet and sends a time exceeded message to the sender. The sender then sees the source of the time exceeded message and displays that IP in the output. It repeats the process by incrementing the TTL by 1 each time. ICMP is an IP messaging protocol. I would say L3.

Almost anytime you hear the word "route" its going to be L3.