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Re: Confirmation to advance: draft-ietf-6man-ipv6only-flag-05

Fernando Gont <fernando@gont.com.ar> Wed, 08 May 2019 19:54 UTC

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Subject: Re: Confirmation to advance: draft-ietf-6man-ipv6only-flag-05
To: Bob Hinden <bob.hinden@gmail.com>, Gyan Mishra <hayabusagsm@gmail.com>
Cc: IPv6 List <ipv6@ietf.org>
References: <F8BFFCAD-E58E-4736-8A1C-56579B6F6032@employees.org> <a2465e81-a17f-ab48-efda-20fe12a70077@foobar.org> <30239E0C-C444-4A7E-8342-AEE47BF8A2BB@employees.org> <8b9fd743-bfcc-525c-98f6-154f3fa713cc@foobar.org> <CAO42Z2zEWvt9NyemMb8H0AEvPvmNSDGa4wcXiS6n5yRxNFCHQg@mail.gmail.com> <c7e18765-be04-6494-8193-984dbccb520b@foobar.org> <CANMZLAYh+V57yrWOzmUyjSMK0g95u1D5_GZmyZBMOMKAZnrnCg@mail.gmail.com> <3F474511-6FE3-4A0A-9B84-7C37F08FBB5D@steffann.nl> <E352C226-C708-4418-BCDE-10525CAB109A@jisc.ac.uk> <652fb10e-b8ce-0151-a9a0-62d2378caed2@gmail.com> <0079c716-d56c-7199-f493-f5e56e1307ae@foobar.org> <b33de303-eaca-f7f6-804e-2c9343eb92a1@gmail.com> <6C4ABEF1-2565-4BA9-9FC5-5B3C45A719AD@gmail.com> <c2222416-6491-1906-a403-d012777a4b38@gmail.com> <CABNhwV0-SdKZqQa4z9jhpc8h1Eq=8UxRhtvHt1==BYEMTVRjug@mail.gmail.com> <96790121-7D50-4C6F-924F-87065B989E44@gmail.com>
From: Fernando Gont <fernando@gont.com.ar>
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Date: Sat, 04 May 2019 14:58:35 +0200
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On 4/5/19 01:53, Bob Hinden wrote:
> Gyan,
> 
>> On May 3, 2019, at 3:53 PM, Gyan Mishra <hayabusagsm@gmail.com> wrote:
>>
>> Do we or anyone in the WG know of any enterprise that is thinking of going IPv6 only.  I don't.  
> 
> Yes, Microsoft.   It was stated in 6man several meetings ago that they were planning IPv6 Only and that this was a mechanism that would be a useful tool.

The question is probably why not use IPv4 to disable IPv4. Entangling
one protocol with another generally leads to increased complexity, and
interesting attack vectors.

I wonder why, if the issue is really a layer 2- one (e.g., stations
being awaken unnecessarily), the problem is not solved at layer 2- --
e.g. filtering at layer to, based on the Ether Proto.

Thoughts?

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@si6networks.com
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1

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