All, In response to my query before the last nanog meeting, I got a bunch of responses of the form "well, now that you mention it, it sure would be cool if traceroute...". I also got several requests for our local version (esp. re: MTU discovery). I went through and did a little cleaning up on our version, and then added a couple of new features. The full list of added features in this version is: - Source route - MTU discovery - Statistics reporting - Higher precision timings reported (with caveats...) - Owner email lookup The one thing I didn't add was the prtraceroute function. I would like to add this eventually, but it seemed like a bit longer of a project than what time I had available. URL: ftp://ftp.psc.edu/pub/net_tools/traceroute.tar I tried to test out by the old and the new features on both DEC and SGI machines. There may be bugs on other architectures; patches will be cheerfully incorporated :-) --Jamshid