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Re: [Autoconf] Working Group Last Call for draft-ietf-autoconf-addr-model-01

Thomas Narten <narten@us.ibm.com> Tue, 05 January 2010 19:58 UTC

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Comments: In-reply-to Thomas Heide Clausen <t.clausen@computer.org> message dated "Thu, 10 Dec 2009 02:37:03 +0100."
Date: Tue, 05 Jan 2010 14:58:03 -0500
From: Thomas Narten <narten@us.ibm.com>
Subject: Re: [Autoconf] Working Group Last Call for draft-ietf-autoconf-addr-model-01
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Two comments on this document.

The document uses but does not really define the term "routing
domain". It should define and/or explain what this term means and why
the term is important (in the context of this document).

> 6.1.  IPv6 Model
> 
>    For IPv6, the principles described in Section 4 and Section 5 suggest
>    the following rules:
> 
 ...
>    o  No on-link subnet prefix is configured on this interface.
> 

But:

> 6.2.  IPv4 Model
> 
>    For IPv4, the principles described in Section 4 and Section 5 suggest
>    rules similar to those mentioned for IPv6 in Section 6.1, that are:
> 
...
>    o  Any subnet prefix configured on this interface should be of length
>       /32.

I don't see a lot of difference between an IPv6 "on-link" prefix and
an IPv4 subnet prefix. It doesn't make sense to me that IPv6 and IPv4
are treated differently.

Thomas

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