On Sun, 17 Jun 2012 13:10:59 -0400, Arturo Servin said: > Wouldn't BCP38 help?
The mail I'm replying to has as the first Received: line: Received: from ?IPv6:2800:af:ba30:e8cf:d06f:4881:973a:c68? ([2800:af:ba30:e8cf:d06f:4881:973a:c68]) by mx.google.com with ESMTPS id b8sm25918444anm.4.2012.06.17.10.11.04 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 17 Jun 2012 10:11:06 -0700 (PDT) Obviously BCP38 doesn't help, as it's an established TCP connection so it can't be spoofed traffic (gotta ACK Google's ISN from the SYN-ACK) - unless Google is silly enough to *still* not be doing RFC1948 properly. I mean, Steve Bellovin wrote that literally last century. ;) So - who owns 2800:af:ba30:e8cf:4881:973a:c68? And how does an LEO find that info quickly if they need to figure out who to hand a warrant to? *THAT* is the problem that needs solving. (And who *does* own that IP? I admit not knowing. ;)
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