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Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option

Lorenzo Colitti <lorenzo@google.com> Thu, 05 December 2019 06:34 UTC

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References: <CAFU7BAR1JLUZps=CAqJfeQtUf-xQ88RYvgYrPCP+QP0Ter7YFg@mail.gmail.com> <da078a21-b606-f0d9-3833-d66b20410853@marples.name> <CAFU7BASdWZv1RTVa5v4thbKPqCrmG886G+hK2J0UoZ3TbELDnw@mail.gmail.com> <b52fdd35-9663-e7df-7303-748a6b3a57ce@marples.name> <CAKD1Yr0vp2gaVRza+wei0qM6T9oN=iu39jRjK-cvhheorgE=Xg@mail.gmail.com> <67155c63-2442-2846-57f2-82fa4da16251@marples.name> <CAKD1Yr3y9eycfenN-t9oU_zgPHEZPy-AVXs3qXkWOBe9UXxVUQ@mail.gmail.com> <a6035aba-cab5-c779-c977-8b1a995eccfd@marples.name>
In-Reply-To: <a6035aba-cab5-c779-c977-8b1a995eccfd@marples.name>
From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 05 Dec 2019 15:33:59 +0900
Message-ID: <CAKD1Yr2uiV0UgBwdXF_t+p1DECK_Pco=tuiHW10K=7SVxFFdUQ@mail.gmail.com>
To: Roy Marples <roy@marples.name>
Cc: Tomek Mrugalski <tomasz.mrugalski@gmail.com>, Jen Linkova <furry13@gmail.com>, dhcwg@ietf.org, draft-link-dhc-v6only@ietf.org, V6 Ops List <v6ops@ietf.org>
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Subject: Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option
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On Thu, Dec 5, 2019 at 1:46 PM Roy Marples <roy@marples.name> wrote:

> I'm not fully following here.
>
DISOVER - DHCP optional
> server says - OK, retry around T2 (our new option)
>
> vs
>
> DISCOVER - No new option, I want a lease
> server says - Sure! here's T1 and T2 timers
>

The problem is that these two packets are the same except for one option.
>From the perspective of a recipient that does not understand the option,
those two packets are exactly the same.

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