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Re: [homenet] I-D.ietf-homenet-prefix-assignment (RFC 4193 conformance)

Mark Andrews <marka@isc.org> Thu, 09 October 2014 00:46 UTC

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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
From: Mark Andrews <marka@isc.org>
References: <CADhXe52TRJy0MA861bCnWY8LjLZnGQiPbb=qXQhxCirm_DHQ0Q@mail.gmail.com> <54348606.7010507@gmail.com> <A250131C-6D1B-4054-A8AE-EBC1BD899B7E@darou.fr> <5435D586.20806@gmail.com>
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Date: Thu, 09 Oct 2014 11:45:59 +1100
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Cc: James Woodyatt <jhw@nestlabs.com>, HOMENET Working Group <homenet@ietf.org>, Pierre Pfister <pierre.pfister@darou.fr>
Subject: Re: [homenet] I-D.ietf-homenet-prefix-assignment (RFC 4193 conformance)
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Why are we arguing about this?

You need to be able to *set* the ULA prefix to something that is
externally generated.  This needs to remembered across reboots,
power cycles etc.

There is no point in having a stable algorithm to generate a ULA
prefix.  As far as I can see the only purpose is to avoid having
any non-volatile memory in the box and I don't see that as a realistic
box.

You will also need non-volatile memory for internal prefix delegation
etc.  You you do want the same prefix to be handed to the same
internal router regardless of the request order.

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org

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