Re: [v6ops] draft-templin-v6ops-pdhost a working group draft?

Lorenzo Colitti <lorenzo@google.com> Mon, 20 November 2017 14:09 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Mon, 20 Nov 2017 23:09:06 +0900
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To: Gert Doering <gert@space.net>
Cc: Ole Troan <otroan@employees.org>, "v6ops@ietf.org" <v6ops@ietf.org>
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Subject: Re: [v6ops] draft-templin-v6ops-pdhost a working group draft?
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On Mon, Nov 20, 2017 at 9:18 PM, Gert Doering <gert@space.net> wrote:

> Four, as soon as we've added appropriate functionality to OpenVPN
> (the need to be able to "number more things than just the VPN-pointing
> interface" is clearly there, as in all other "/64 to the host" examples,
> but the mechanics are not there, and not very well understood either)
>

Great to hear you're working on this. A while ago I asked around to see if
there were any VPN providers that handed out more than a single /128 and I
couldn't find any. Once this is supported in OpenVPN it might be easier for
providers to offer it.


> So it's reasonable to spend a bit of thinking on "what would a host do
> with a /64 if it knew it's all reserved for itself"
>

One thing we're thinking of is to give apps an API to create new IPv6
addresses for their own use. This is only really useful if the prefix is
dedicated to the host, as doing this on a shared prefix may not work and
may end up causing scaling issues to the network.