Hi Adnan,

Thank you for the clarification!

Sincerely,
RFC Editor/st

> On Jul 29, 2025, at 4:05 PM, Adnan Rashid <[email protected]> wrote:
> 
> Dear Sarah,
> 
> I am not the Author of this draft, and I can not do what you told me to do.
> I am sure Pascal will do it as soon as possible, as I already highlighted 
> this error in the last IETF meeting.
> 
>  
> On Mon, Jul 28, 2025 at 4:01 PM Sarah Tarrant <[email protected]> 
> wrote:
> Hi Adnan,
> 
> We do ask that you submit this latest update as a new version to Datatracker 
> via the ID submission tool. This way it's clear where the change originated. 
> From there, we can more easily acquire AD approval and proceed with the usual 
> editing process.
> 
> Thank you,
> RFC Editor/st
> 
> > On Jul 27, 2025, at 10:09 AM, Adnan Rashid <[email protected]> wrote:
> > 
> > Hi All,
> > 
> > As this specification is in the publishing queue, I would like to correct 
> > the mistake in the existing draft.
> > 
> > As per RFC8929:
> >     • EDAR and EDAC messages SHOULD carry an SLLAO and a TLLAO, 
> > respectively.
> >     • 3.1. Updating RFCs 6775 and 8505
> > ................
> > This specification allows the deployment of a 6LBR on the backbone where 
> > EDAR and EDAC messages coexist with classical ND. It also adds the 
> > capability to insert IPv6 ND options in the EDAR and EDAC messages. A 6BBR 
> > acting as a 6LR for the Registered Address can insert an SLLAO in the EDAR 
> > to the 6LBR in order to avoid causing a multicast NS(lookup) back. This 
> > enables the 6LBR to store the link-layer address associated with the 
> > Registered Address on a link and to serve as a mapping server as described 
> > in [UNICAST-LOOKUP].
> > 
> > Corrected Text: Both figures must add the Options field in the existing 
> > Draft 
> >   0                   1                   2                   3
> >   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |     Type      |CodePfx|CodeSfx|          Checksum             |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |P=3| Reserved  |     TID       |     Registration Lifetime     |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |                                                               |
> > ...                          ROVR                               ...
> >  |                                                               |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |                                                               |
> >  +                           Prefix                              +
> >  |                                                               |
> >  +                 (up to 120 bits, padded with 0s)              +
> >  |                                                               |
> >  +                                               +-+-+-+-+-+-+-+-+
> >  |                                               |r|Prefix Length|
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  | Options..
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> > Figure 3: EDAR Message Format with P == 3
> > 
> >   0                   1                   2                   3
> >   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |     Type      |CodePfx|CodeSfx|          Checksum             |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |    Status     |     TID       |     Registration Lifetime     |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |                                                               |
> > ...                          ROVR                               ...
> >  |                                                               |
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  |                                                               |
> >  +                           Prefix                              +
> >  |                                                               |
> >  +                 (up to 120 bits, padded with 0s)              +
> >  |                                                               |
> >  +                                               +-+-+-+-+-+-+-+-+
> >  |                                               |r|Prefix Length|
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >  | Options..
> >  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> > Figure 4: EDAC Message Format
> > 
> > 
> > On Mon, Jul 7, 2025 at 9:03 PM The IESG <[email protected]> wrote:
> > The IESG has approved the following document:
> > - 'IPv6 Neighbor Discovery Prefix Registration'
> >   (draft-ietf-6lo-prefix-registration-15.txt) as Proposed Standard
> > 
> > This document is the product of the IPv6 over Networks of
> > Resource-constrained Nodes Working Group.
> > 
> > The IESG contact persons are Erik Kline and Éric Vyncke.
> > 
> > A URL of this Internet-Draft is:
> > https://datatracker.ietf.org/doc/draft-ietf-6lo-prefix-registration/
> > 
> > 
> > 
> > 
> > Technical Summary
> > 
> >    This document updates IPv6 Neighbor Discovery RFC4861 and the 6LoWPAN
> >    extensions (RFC8505, RFC8928, RFC8929, RFC7400) to enable a node that
> >    owns or is directly connected to a prefix to register that prefix to
> >    neighbor routers.  The registration indicates that the registered
> >    prefix can be reached via the advertising node without a loop.  The
> >    unicast prefix registration allows to request neighbor router(s) to
> >    redistribute the prefix in a larger routing domain regardless of the
> >    routing protocol used in the larger domain.  This document extends
> >    RPL (RFC6550, RFC6553, RFC9010) to enable the 6LR to inject the
> >    registered prefix in RPL.
> > 
> > The text documents why the usual IPv6 techniques do not work well
> > in a power/bandwidth constrained network.
> > 
> > During the authoring of this I-D, the WG detected that RFC 8928
> > made a mistake in the flags, hence there is a new draft
> > draft-ietf-6lo-updating-rfc-8928 fixing the flags
> > 
> > Working Group Summary
> > 
> > The working group consensus was broad. In discussions on the 6LoWPAN and RPL
> > mailing lists, most participants actively contributed to the evolution of 
> > the
> > draft. There was general agreement on the need to extend address 
> > registration
> > to cover prefixes, and improvements were made iteratively based on 
> > widespread
> > feedback rather than the viewpoints of only a few individuals.
> > 
> > While some discussion took place regarding the use and encoding of the new
> > flags (for example, the F flag and the extended use of the P-field for 
> > prefix
> > registrations), the WG discussions were productive. The alternative 
> > approaches
> > were debated with data and simulation results where available. In the end, 
> > the
> > consensus reflected a balanced choice that improved backward compatibility 
> > and
> > interoperability with existing implementations. There were no extremely
> > contentious points or rough consensus blocks.
> > 
> > Document Quality
> > 
> > Not too many reviews have been done, but the I-D was forwarded multiple
> > times to 6MAN for reviews:
> > https://mailarchive.ietf.org/arch/msg/ipv6/gcGSctZ9lWmQDqVxNL8T7kpWyCc/
> > 
> > Personnel
> > 
> >    The Document Shepherd for this document is Shwetha Bhandari. The
> >    Responsible Area Director is Éric Vyncke.
> > 
> > IANA Note
> > 
> > IANA is requested to add one entry in two existing registries (see [IANA 
> > #1417806]):
> > - P-field in "Internet Control Message Protocol version 6 (ICMPv6) 
> > Parameters" registry
> > - F-flag in "6LoWPAN Capability Bits" in "Internet Control Message Protocol 
> > version 6 (ICMPv6) Parameters" registry
> > 
> > 
> > 
> > 
> > RFC Editor Note
> > 
> > Please process draft-ietf-6lo-updating-rfc-8928 and 
> > draft-ietf-6lo-prefix-registration together (they should actually be in a 
> > cluster anyway) and allocate two sequential RFC number if possible. The 
> > lower RFC number should be for draft-ietf-6lo-updating-rfc-8928 and the 
> > higher for draft-ietf-6lo-prefix-registration.
> > 
> > Thanks
> > 
> > -éric
> > 
> > _______________________________________________
> > 6lo mailing list -- [email protected]
> > To unsubscribe send an email to [email protected]
> > 
> > 
> > -- 
> > Regards,
> > 
> > Adnan
> 
> 
> 
> -- 
> Regards,
> 
> Adnan

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