Re: [v6ops] Implementation Status of PREF64

Mark Smith <markzzzsmith@gmail.com> Wed, 29 September 2021 22:15 UTC

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Thu, 30 Sep 2021 08:15:37 +1000
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To: Nick Hilliard <nick@foobar.org>
Cc: Philip Homburg <pch-v6ops-10@u-1.phicoh.com>, v6ops list <v6ops@ietf.org>
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Subject: Re: [v6ops] Implementation Status of PREF64
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On Thu, 30 Sep 2021, 03:41 Nick Hilliard, <nick@foobar.org> wrote:

> Mark Smith wrote on 28/09/2021 23:37:
> > Lorenzo has worked out like I have worked out that reducing external
> > dependencies (such as a dependency on a central server) makes things
> > more reliable, and also makes deploying new capabilities to hosts easier
> > and quicker.
>
> You sure about that?
>
> https://mailarchive.ietf.org/arch/msg/ipv6/NMWxPx3QEFNmUC1-kGuwyyNrRdw/



That's perfectly consistent with that.

Deprecating DHCPv6 is removing a dependency.

See RFC1925 truth 12.



>
>
> Even if you had, that would be fine and you're welcome to your opinions.
>   Other people disagree because it doesn't make sense on their deployments.
>

If they want to hobble IPv6, such that it is nothing more than a copy of
IPv4 with bigger addresses, what is the point of going to the expense and
effort of deploying IPv6 when most enterprises have plenty of IPv4 address
space via RFC1918 and 100.64/10 if they were willing to abuse it a bit?

A hobbled deployment of IPv6, hobbled such that it doesn't provide any
useful benefit over IPv4, is just pure business expense. Increased profit
is an exceptionally strong disincentive to incurring those.

Regards,
Mark.





> Nick
>