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Re: Router Alert value codes

Erik Kline <ek.ietf@gmail.com> Thu, 09 July 2020 04:48 UTC

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From: Erik Kline <ek.ietf@gmail.com>
Date: Wed, 08 Jul 2020 21:48:29 -0700
Message-ID: <CAMGpriX0UrTS7SW7hd0JRgaPoLz69Kb8tBdVKthZJhBBpb64KA@mail.gmail.com>
Subject: Re: Router Alert value codes
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Cc: 6man <ipv6@ietf.org>
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On Wed, Jul 8, 2020 at 7:34 PM Brian E Carpenter
<brian.e.carpenter@gmail.com> wrote:
>
> Hi,
>
> Describing the Router Alert hop-by-hop option, RFC2711 says:
>
> >       Value:  A 2 octet code in network byte order with the following
> >       values:
> >
> >          0        Datagram contains a Multicast Listener Discovery
> >                   message [RFC-2710].
> >          1        Datagram contains RSVP message.
> >          2        Datagram contains an Active Networks message.
> >          3-65535  Reserved to IANA for future use.
> >
> >       Alignment requirement: 2n+0
> >
> >       Values are registered and maintained by the IANA.  See section 5.0
> >       for more details.
> ....
> > 5.0 IANA Considerations
> >
> >    The value field described in Section 2.1 is registered and maintained
> >    by IANA. New values are to be assigned via IETF Consensus as defined
> >    in RFC 2434 [RFC-2434].
>
> As far as I can tell, IANA has no such registry. Logically, it would be part of https://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml#ipv6-parameters
>
> Is this a problem? Are there other defined uses of Router Alert than MLD, RSVP or Active Networks?

https://www.iana.org/assignments/ipv6-routeralert-values/ipv6-routeralert-values.xhtml
?

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