99ec65e7fe
Stop probing after receiving ICMP6_DST_UNREACH and print ICMP6 error code. The behavior can be observed by tracing the route to, for example, 2a02:ee80:4028:1126:: Discussed with: Job Snijders, Nick Hilliard Obtained from: OpenBSD Reviewed by: markj, jlduran Differential Revision: https://reviews.freebsd.org/D47520