Dear all

I’d suggest that the mistake is on RFC 8928 not this. 
The reason being that we failed at the time to ask for a IANA registration 
which would have allowed to detect the overlap.
This erratum would imply to change IANA but wouldn’t fix the missing entry…


A bientôt;

Pascal

> Le 20 mars 2025 à 14:52, RFC Errata System <rfc-edi...@rfc-editor.org> a 
> écrit :
> 
> The following errata report has been submitted for RFC9685,
> "Listener Subscription for IPv6 Neighbor Discovery Multicast and Anycast 
> Addresses".
> 
> --------------------------------------
> You may review the report below and at:
> https://www.rfc-editor.org/errata/eid8340
> 
> --------------------------------------
> Type: Technical
> Reported by: Adnan Rashid <adnanrashi...@gmail.com>
> 
> Section: 7.1
> 
> Original Text
> -------------
>   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      |     Length    |    Status     |    Opaque     |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>  |Rsv| P | I |R|T|     TID       |     Registration Lifetime     |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>  |                                                               |
> ...          Registration Ownership Verifier (ROVR)              ...
>  |                                                               |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 
> Corrected Text
> --------------
>   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      |     Length    |    Status     |    Opaque     |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>  |R| P |C| I |R|T|     TID       |     Registration Lifetime     |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>  |                                                               |
> ...          Registration Ownership Verifier (ROVR)              ...
>  |                                                               |
>  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 
> Notes
> -----
> The EARO format in RFC 9685  (Figure 5) omits the C-flag, which was 
> previously defined in RFC 8928. This inconsistency could lead to issues in 
> implementation and interoperability. It is important to ensure that newer 
> standards respect and align with existing conventions.
> small "R" is a single unused/Reserved bit.
> 
> Instructions:
> -------------
> This erratum is currently posted as "Reported". (If it is spam, it
> will be removed shortly by the RFC Production Center.) Please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party  
> will log in to change the status and edit the report, if necessary.
> 
> --------------------------------------
> RFC9685 (draft-ietf-6lo-multicast-registration-19)
> --------------------------------------
> Title               : Listener Subscription for IPv6 Neighbor Discovery 
> Multicast and Anycast Addresses
> Publication Date    : November 2024
> Author(s)           : P. Thubert, Ed.
> Category            : PROPOSED STANDARD
> Source              : IPv6 over Networks of Resource-constrained Nodes
> Stream              : IETF
> Verifying Party     : IESG
> 
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