North American Network Operators Group|
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Re: a record?
In message <[email protected]>, Gadi Evron writes: > >You don't have to scan an entire /64 ( :) ). > >You can sniff network traffic and see what IP addresses you see, then >scan only close ranges to those. >You can create a DB or download one, with addresses of known used spaces. > >You can throw out thousands of random packets, finding used spaces. > >You can do a lot of things, some smarter and mathematical, others just >sensible. If I could come up with 3 silly solutions in 2 seconds, I bet >the Bad Guys will do far better when the time comes, if it ever does. I >am of a mind that we need IPv-NEXT-ONE (or whatever) to deal with actual >problems before we undertake IPv6, but that's just an opinion and >therefore completely wrong. Yes. Angelos Keromytis, Bill Cheswick, and I have a paper on this that will be out shortly. --Steven M. Bellovin, http://www.cs.columbia.edu/~smb