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Re: [v6ops] Making RDNSS a MUST?, hum v2

David Farmer <farmer@umn.edu> Thu, 06 April 2017 12:57 UTC

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From: David Farmer <farmer@umn.edu>
Date: Thu, 06 Apr 2017 07:57:45 -0500
Message-ID: <CAN-Dau3jA6G6+p1AQbxd-PGQtiehthM7TCPZ4YperuftKq8eCw@mail.gmail.com>
To: Lorenzo Colitti <lorenzo@google.com>
Cc: V6ops Chairs <v6ops-chairs@tools.ietf.org>, IPv6 Operations <v6ops@ietf.org>
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Subject: Re: [v6ops] Making RDNSS a MUST?, hum v2
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On Wed, Apr 5, 2017 at 11:01 PM, Lorenzo Colitti <lorenzo@google.com> wrote:

> On Thu, Apr 6, 2017 at 12:45 PM, Fred Baker <fredbaker.ietf@gmail.com>
> wrote:
>
>> Do we agree to, in some document, make RDNSS and DHCP Relay "Mandatory to
>> Implement" in the router, with a view to supporting both classes of
>> networks?
>>
>
> I'm not sure it makes sense to ask this question in isolation. Suppose we
> were to declare rough consensus on #3. We haven't improved things, because
> it seems pretty clear to me that we won't get rough consensus on making
> DHCPv6 a MUST for hosts, as there is substantial opposition to that from
> the host software developers who are directly affected by it.
>

Lorenzo,

Unfortunately, I don't think there is any consensus to be had about hosts.
You have made it perfectly clear that you and others can not accept any
requirement for hosts to do DHCPv6 in any way (SHOULD or MUST).  And,
others are equally adamant that hosts have to be required (SHOULD or MUST)
to do DHCPv6 to move a RDNSS requirement for hosts forward.  I believe we
have an impasse on the subject, and having the two sides yell at each other
on the mailing list gets us no where.

As for routers; It's clear we need routers that support RDNSS to support
the hosts you and others are making.  Then, until you have convinced all
host OS vendors to remove DHCPv6 support, and the old hosts are all gone,
we need routers that also support DHCPv6.  There seems to be a consensus
that routers need support for RDNSS, at least DHCPv6 Relay (probably a
MUST), and Stateless DHCPv6 (probably a SHOULD).  It's just that simple
from an operational perspective that draft-ali-ipv6rtr-reqs-02 has.

Thanks.

-- 
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David Farmer               Email:farmer@umn.edu
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