traceroute

Use

traceroute -m 8 1.1.1.1

What It Does

traceroute sends probes with increasing hop limits. Routers can return diagnostic replies, allowing the command to show part of the route to a destination.

Practice

Use -m 8 to limit the experiment to eight hops. Compare the route only as a diagnostic clue, not as proof that a website works.

Watch Out

A * means that one hop did not answer its probe. Routers often filter these probes while forwarding normal web traffic.

Docs Pointers

• Run man traceroute.
• Read ICMP and IP Networking.