Reverse traceroute and spoofing of sources of packets?

I missed this meeting/preso when it happened (yes, 5+ meetings ago)


I note the talks about using spoofed source packets to do some
measurement, I didn't see anyone in the video say: "But spoofing is
bad, but you want YOU to be able to do this? what? isn't that a little

Isn't it? and why would someone (an isp) disable BCP38 for this sort
of activity?


According to the presentation they were planning on releasing a
downloadable tool by May 2009, but in searching around I found no
evidence that this was ever released.


I was also looking for a such a kind of tool some days ago.