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Re: [v6ops] Implementation Status of PREF64

Lorenzo Colitti <lorenzo@google.com> Sun, 26 September 2021 05:40 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Sun, 26 Sep 2021 14:40:20 +0900
Message-ID: <CAKD1Yr2NGrgfkm5y9F_bEP9V6Ko9oGk7475r0dEKLKednX=ohg@mail.gmail.com>
To: Owen DeLong <owen=40delong.com@dmarc.ietf.org>
Cc: Mark Smith <markzzzsmith@gmail.com>, Jen Linkova <furry@google.com>, V6 Ops List <v6ops@ietf.org>, David Farmer <farmer=40umn.edu@dmarc.ietf.org>
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Subject: Re: [v6ops] Implementation Status of PREF64
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If you have NAC you don't need DHCPv6 for anything. RFC 7934 section 9.1.

On Sat, Sep 25, 2021 at 4:44 PM Owen DeLong <owen=
40delong.com@dmarc.ietf.org> wrote:

> DHCP by itself, no.
>
> DHCP+NAC, well, yes… yes it does.
>
> You see, with NAC (Network Admission Control), you don’t get on the
> network unless and/or until
> you’ve properly completed the 802.1x authentication process and part of
> that includes (potentially)
> requiring you to have an address that the DCHP server will vouch for being
> tied to your DUID and/or
> MAC address.
>
> So while the article you site is sort of correct to some extent as far as
> it goes, it presumes a set
> of limitations on the network that isn’t true for many enterprise networks.
>
> Owen
>
>
> On Sep 25, 2021, at 00:08 , Mark Smith <markzzzsmith@gmail.com> wrote:
>
>
>
> On Sat, 25 Sep 2021, 12:55 Owen DeLong, <owen=40delong.com@dmarc.ietf.org>
> wrote:
>
>> Now if they could only implement DHCPv6.
>>
>
> What problem would that solve?
>
> It won't solve the problem of recording IPv6 addresses in use:
>
>
> https://ipv6tao.blogspot.com/2021/09/the-stateful-dhcpv6-myth-no-it-doesnt.html
>
>
>
>
>> Owen
>>
>>
>> On Sep 24, 2021, at 3:26 PM, Erik Kline <ek.ietf@gmail.com> wrote:
>>
>> My understanding is that Android supports
>> <https://cs.android.com/android/_/android/platform/packages/modules/NetworkStack/+/70d7ffa59f1f4ac242d8409143108466025102c7>
>> handling PREF64 RA options.
>>
>> On Fri, Sep 24, 2021 at 10:21 AM David Farmer <farmer=
>> 40umn.edu@dmarc.ietf.org> wrote:
>>
>>> Are there and host or router implementations of PREF64 (RFC8781) out in
>>> the wild yet?
>>>
>>> Thanks
>>>
>>>
>>> --
>>> ===============================================
>>> David Farmer               Email:farmer@umn.edu
>>> Networking & Telecommunication Services
>>> Office of Information Technology
>>> University of Minnesota
>>> 2218 University Ave SE        Phone: 612-626-0815
>>> Minneapolis, MN 55414-3029   Cell: 612-812-9952
>>> ===============================================
>>> _______________________________________________
>>> v6ops mailing list
>>> v6ops@ietf.org
>>> https://www.ietf.org/mailman/listinfo/v6ops
>>>
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