Re: Traceroute and random UDP ports

These days there are better implementations of traceroute that are less likely to infer false IP paths by not playing games with the source and destination ports. www.paris-traceroute.net Paris traceroute hacks the payload of the UDP probe to use the checksum field as the probe identifier (and also uses the IPID field as a backup since NATs will change the checksum). Paris traceroute also has an ICMP mode.