Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ANDREW.CMU.EDU!ww0n+
From: ww0n+@ANDREW.CMU.EDU (Walter Lloyd Wimer III)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: RFC 1063 question
Message-ID: <sYpaSfC00aQeE8LUQl@andrew.cmu.edu>
Date: 2 Aug 89 03:16:59 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15


Upon closer examination of RFC 791 (Internet Protocol), it is clear that
the MTU discovery options should definitely not be copied on
fragmentation since an IP option-type encodes the most-significant-bit
as the "copy" bit.  As specified in RFC 1063, the MTU option numbers do
not have this bit set.

(As is often the case, this answer was discovered mere moments after the
question was posted.)



Walt Wimer
Network Development
Carnegie Mellon University