[182371] in North American Network Operators' Group
Re: Dual stack IPv6 for IPv4 depletion
daemon@ATHENA.MIT.EDU (Barry Shein)
Wed Jul 15 16:56:10 2015
X-Original-To: nanog@nanog.org
From: Barry Shein <bzs@world.std.com>
Date: Wed, 15 Jul 2015 16:55:31 -0400
To: Owen DeLong <owen@delong.com>
In-Reply-To: <C1314337-FF9B-4711-87FF-203864950A4D@delong.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On July 15, 2015 at 09:20 owen@delong.com (Owen DeLong) wrote:
>=20
> There are two ways to waste addresses. One is to allocate them to us=
ers who
> don=1B,Ab=80=99=1B(Bt actually use all of them.
>=20
> The other is to keep them on the shelf in the free pool until well p=
ast the useful
> life of the protocol.
I'd add a third which is segmentation and I think that's a real
threat. That is, assigning large chunks to specific functions by
policy usually in support of technical needs. For example IPv4's
multicast block. Poof, 224/4 gone. Or similar.
Suddenly it's not 2^N bits it's just N bits.
My claim is that such segmentation tends to grow over time as people
find good arguments to segment.
--=20
-Barry Shein
The World | bzs@TheWorld.com | http://www.TheWor=
ld.com
Purveyors to the Trade | Voice: 800-THE-WRLD | Dial-Up: US, PR, =
Canada
Software Tool & Die | Public Access Internet | SINCE 1989 *o=
o*
