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Re: [v6ops] IPv6-Only Preferred DHCPv4 option

Jen Linkova <furry13@gmail.com> Sun, 08 December 2019 23:54 UTC

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From: Jen Linkova <furry13@gmail.com>
Date: Mon, 09 Dec 2019 10:53:46 +1100
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To: Philip Homburg <pch-v6ops-9@u-1.phicoh.com>
Cc: V6 Ops List <v6ops@ietf.org>
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Subject: Re: [v6ops] IPv6-Only Preferred DHCPv4 option
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On Sat, Dec 7, 2019 at 1:10 AM Philip Homburg
<pch-v6ops-9@u-1.phicoh.com> wrote:
> >"number of IPv4 addresses in the pool" comes to mind.
> >
> >Like, 80% of all hosts are fine with IPv6+NAT64, so why provision a large
> >enough subnet to cover 100% of all expected hosts if 20% will do?

Exactly.

> With a few exceptions, just about any DHCP pool I come across these
> days is using RFC 1918.
>
> Are you running out of RFC 1918 addresses in your pool?

Yes, I am. I've run out of private addresses.
So just deploying NAT64 and giving IPv4 address to all devices by
default does not solve my problem,
as all those devices will be consuming IPv4 addresses, despite the
fact that >80% of those devices would work just fine w/o IPv4.

-- 
SY, Jen Linkova aka Furry

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