> -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > james woodyatt > Sent: Wednesday, July 20, 2011 2:44 PM > To: RJ Atkinson > Cc: [email protected] > Subject: Re: PMTUD and MTU < 1280 > > On Jul 20, 2011, at 14:35 , RJ Atkinson wrote: > > > One hopes IPv6 implementers will be tolerant of IPv6 MTUs below 1280 > bytes, because they do exist in the deployed world and aren't going > away anytime soon. > > Those hopes are not well placed. > > I am aware of at least one packet filter implementation-- which might > be refined in the future, one hopes, to conform fully with RFC 6092-- > that treats this behavior as a resource exhaustion attack and drops > flows accordingly.
Its behavior violates the last paragraph of Section 5 of RFC2460. -d > > -- > james woodyatt <[email protected]> > member of technical staff, core os networking > > > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > [email protected] > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
