> -----Original Message----- > From: Dino Farinacci [mailto:[email protected]] > Sent: Wednesday, January 28, 2009 5:19 PM > To: Templin, Fred L > Cc: Robin Whittle; RRG; [email protected]; > [email protected]; [email protected] > Subject: Re: [Int-area] [rrg] Please respond: Questions from > the IESG as towhether a WG forming BOF is necessary for LISP > > > The approach in the current LISP draft still relies on ICMPs > > coming from anonymous network middleboxes (which Dino himself > > has said that we cannot depend on), and provides insufficient > > I did not say that. I said you cannot depend on ICMP > Unreachables. But
Yes, that is what you said. And, an IPv4 PTB is just an ICMP unreachable with code=4. > ICMP TooBig and Time-Exceeded message are sent and are more > dependable. That is, they can get lost when they are > transmitted since > they are single transmitted datagrams. But at least they are sent. There is evidence (e.g., RFC2923, RFC4821, etc.) that this is not always true. Fred [email protected] > > Dino > _______________________________________________ rrg mailing list [email protected] http://www.irtf.org/mailman/listinfo/rrg
