Check manual page of check_traceroute

Current Route to Target Host

Included in	All Checkmk editions
Source Code License	Open Source
Supported Agents	Active

This check does a traceroute to the target host and checks which route(s) are being taken. You can check both for missing and present routes and attach WARN or CRIT state to them. traceroute is expected to be in the search path and installed with SUID root bit.