Re: Is there an official Extension Headers List?

Jeroen Massar <jeroen@unfix.org> Tue, 22 May 2012 16:00 UTC

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Date: Tue, 22 May 2012 18:00:22 +0200
From: Jeroen Massar <jeroen@unfix.org>
Organization: Unfix
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: Is there an official Extension Headers List?
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Cc: "Duncan, Jeremy" <jeremy.duncan@salientfed.com>, "'ipv6@ietf.org'" <ipv6@ietf.org>
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On 2012-05-22 17:46 , Brian E Carpenter wrote:
> However, extension headers defined since 2460 have to be added.
> That's the case for MIPv6, SHIM6 and HIP.
> 
> This matters - there are known to be boxes that discard packets
> with a SHIM6 header, for example.
> 
> We do maybe need a little normative RFC on this.

Isn't the proper location for this:
http://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xml

Though that just points to:
http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml

as those are all the protocol numbers.

The "problem" with that list is that it is not noted explicitly as being
a Extension Header, thus IMHO it would be best if IANA could add a flag
or so to indicate that a certain protocol number is explicitly used as a
IPv6 Extension Header.

Greets,
 Jeroen