[madslug]

Originally Posted by rryles

Yes. I posted that same link a few pages back! The same functionality is now integrated into recent versions of traceroute though. You just need to use the -T option and set the destination port with -p

I must have an old version

Usage: traceroute [-dFInrSvx] [-g gateway] [-i iface] [-f first_ttl]
[-m max_ttl] [-p port] [-P proto] [-q nqueries] [-s src_addr]
[-t tos] [-w waittime] [-z pausemsecs] host [packetlen]