Crist J. Clark a719d3b931 Option for setting a fixed destination port. This is useful for tracing
to a host behind a firewall where only specific services are allowed.
For example, to trace the hops to an HTTP server behind a firewall,

  $ traceroute -e -P tcp -p 80 www-firewalled.example.com

MFC after:	1 week
2006-05-11 06:30:18 +00:00
..
2006-04-19 12:19:06 +00:00
2006-03-07 05:44:45 +00:00