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Re: [v6ops] New Version Notification for draft-collink-v6ops-ent64pd-01.txt

Mark Smith <markzzzsmith@gmail.com> Tue, 20 December 2022 06:51 UTC

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Tue, 20 Dec 2022 17:51:37 +1100
Message-ID: <CAO42Z2xAdcEQ1oX05VUT8=ZH1SHujQJtMqmngOOwt6K+0yM_Ow@mail.gmail.com>
To: Lorenzo Colitti <lorenzo=40google.com@dmarc.ietf.org>
Cc: Fred Baker <fredbaker.ietf@gmail.com>, draft-collink-v6ops-ent64pd@ietf.org, Vasilenko Eduard <vasilenko.eduard=40huawei.com@dmarc.ietf.org>, xiaom@google.com, V6 Ops List <v6ops@ietf.org>
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Subject: Re: [v6ops] New Version Notification for draft-collink-v6ops-ent64pd-01.txt
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On Tue, 20 Dec 2022, 17:46 Lorenzo Colitti, <lorenzo=
40google.com@dmarc.ietf.org> wrote:

> On Mon, Dec 19, 2022 at 1:18 PM Fred Baker <fredbaker.ietf@gmail.com>
> wrote:
>
>> > 1.    What is the point to keep SLAAC if DHCP infrastructure is
>> mandatory?
>>
>> What I might suggest is to make SLAAC normal (as s the current case,
>> e.g., retaining backward compatibility) and provide a way to tell hosts
>> that they should request a prefix via DHCP-PD.
>
>
> That is in fact the intent here. Section 8 mentions that good coexistence
> with SLAAC requires an extra flag in the PIO. The flag would effectively
> mean, "this network supports SLAAC, but if you want more address space, you
> can request a prefix". This ensures that networks without a lot of address
> space (e.g., home networks, SMEs etc.) can use SLAAC without running out of
> IPv6 prefixes.
>


I was thinking an additional flag in RAs, in the set of the M and O flags
('P' for host Prefix?). That seems a bit more intuitive to me than a PIO
flag.

Regards,
Mark.



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