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Re: [Fwd: I-D Action: draft-carpenter-6man-why64-00.txt]

Lorenzo Colitti <lorenzo@google.com> Fri, 10 January 2014 09:00 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 10 Jan 2014 17:59:38 +0900
Message-ID: <CAKD1Yr0PTXRRBwLWJfA77hv2WnmPZXqn72ahmhm4RbN3MpLkig@mail.gmail.com>
Subject: Re: [Fwd: I-D Action: draft-carpenter-6man-why64-00.txt]
To: Ray Hunter <v6ops@globis.net>
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On Fri, Jan 10, 2014 at 5:10 PM, Ray Hunter <v6ops@globis.net> wrote:
>
> IPv6 /64 breaks address scarcity.


Wait, maybe I see your position now. You're thinking of a transit network,
and you want to limit the number of addresses assigned at the edge so the
middleboxes can cope?

But I still don't understand. In most cases, in such a transit network you
can't do individual machine tracking already because machines are behind
NATs. So why is it so important to track every machine in IPv6?

Also, I don't understand why you wouldn't use hierarchical addressing and
delegation - which is what you might naturally do even in IPv4 - and track
ranges instead of individual addresses.

Perhaps I don't understand the use case. Can you say more about what sort
of networks would need this functionality?

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