Tom, see below: > Hi Fred, > > I don't see how the Hop-by-Hop Option can work. In IPv6, fragmentation > is always end to end so a Hop-by-Hop Option really isn't appropriate. > It should be a Destination Option, but then we'd have to have DestOps > before the Frag header but after any Routing Header which would > diverge from the recommended EH ordering in section 4.1 of RFC8200. > Also, it seems the high order bits of the option type can't be 00 > (presumably the option must be processed in order to correctly perform > reassembly), if this is done in a Hop-by-Hop Options then an > intermediate node may drop the packet even though it doesn't care > about fragmentation.
This started out as a destination option *after* the Fragment header but *before* the Routing header according to the order stipulated in RFC8200. But, then I realized that I wanted to enable network fragmentation for IPv6 and for that I needed a hop-by-hop option to tell intermediate IPv6 hops that recognize the option that fragmentation is permitted. This document updates RFC8200. Fred > Tom > > > > > The IETF datatracker status page for this Internet-Draft is: > > https://datatracker.ietf.org/doc/draft-templin-intarea-ipid-ext/ > > > > There is also an HTMLized version available at: > > https://datatracker.ietf.org/doc/html/draft-templin-intarea-ipid-ext-04 > > > > A diff from the previous version is available at: > > https://author-tools.ietf.org/iddiff?url2=draft-templin-intarea-ipid-ext-04 > > > > Internet-Drafts are also available by rsync at: > > rsync.ietf.org::internet-drafts > > > > > > _______________________________________________ > > I-D-Announce mailing list > > i-d-annou...@ietf.org > > https://www.ietf.org/mailman/listinfo/i-d-announce > > > > _______________________________________________ > > Int-area mailing list > > Int-area@ietf.org > > https://www.ietf.org/mailman/listinfo/int-area > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > i...@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- _______________________________________________ Int-area mailing list Int-area@ietf.org https://www.ietf.org/mailman/listinfo/int-area
