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Re: draft-gont-6man-managing-privacy-extensions-00.txt

Fernando Gont <fernando@gont.com.ar> Fri, 18 March 2011 21:07 UTC

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Date: Thu, 17 Mar 2011 21:59:36 -0300
From: Fernando Gont <fernando@gont.com.ar>
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To: Mohacsi Janos <mohacsi@niif.hu>
Subject: Re: draft-gont-6man-managing-privacy-extensions-00.txt
References: <7111FC5F-BC3F-4242-9C3F-037E79894749@gmail.com> <alpine.DEB.1.10.1103091212570.7942@uplift.swm.pp.se> <4D77CBB9.1080702@gmail.com> <20110310071925.309d467b@opy.nosense.org> <4D7F539E.7030308@gont.com.ar> <4D7FE55B.7050207@gmail.com> <4D80166A.9060502@gont.com.ar> <22F6318E46E26B498ABC828879B08D4F0C40AA@TK5EX14MBXW653.wingroup.windeploy.ntdev.microsoft.com> <4D80ADCF.7060409@gont.com.ar> <alpine.BSF.2.00.1103161337140.87087@mignon.ki.iif.hu>
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On 16/03/2011 09:48 a.m., Mohacsi Janos wrote:

> As RFC 4941 says:
> 
> Changed the default setting for usage of temporary addresses to be
> disabled.
> 
> and also:
> "
> Additionally, sites might wish to selectively enable or disable the
>    use of temporary addresses for some prefixes.  For example, a site
>    might wish to disable temporary address generation for "Unique local"
>    [ULA] prefixes while still generating temporary addresses for all
>    other global prefixes.  Another site might wish to enable temporary
>    address generation only for the prefixes 2001::/16 and 2002::/16,
>    while disabling it for all other prefixes.  To support this behavior,
>    implementations SHOULD provide a way to enable and disable generation
>    of temporary addresses for specific prefix subranges.  This per-
>    prefix setting SHOULD override the global settings on the node with
>    respect to the specified prefix subranges.  Note that the pre-prefix
>    setting can be applied at any granularity, and not necessarily on a
>    per-subnet basis.
> "

The proposed modification to the Prefix Information option would enable
administrators to avoid the pain of having to do this manually on each
node attached to their site -- which in some cases could be impossible.

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@acm.org
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1

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