[130945] in North American Network Operators' Group
Re: Definitive Guide to IPv6 adoption
daemon@ATHENA.MIT.EDU (Owen DeLong)
Mon Oct 18 14:14:33 2010
From: Owen DeLong <owen@delong.com>
In-Reply-To: <4CBC7F7B.8050600@brightok.net>
Date: Mon, 18 Oct 2010 11:09:43 -0700
To: Jack Bates <jbates@brightok.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Oct 18, 2010, at 10:10 AM, Jack Bates wrote:
> On 10/18/2010 11:45 AM, Owen DeLong wrote:
>>=20
>> More accurately... A /48 per customer end-site...
>>=20
>=20
> Define end0-site. Residential customers, for example, don't need more =
than a /56. More would just be obscene. Most small businesses don't need =
more than a /56 either, especially if you are breaking them up into =
different sites (versus assigning a /48 to customer and dividing that =
block up to different sites).
>=20
>=20
You are wrong. Residential customers should get /48s. /56s seemed like a =
good idea at the time, but, they aren't.
It's not just about counting subnets. There's also the issue of needing =
bits for self-defining hierarchical topologies.
8 bits isn't enough for that. 16 is.
Seriously... This isn't IPv4. The scarcity mentality is causing harm and =
driving decisions that will have a limiting
effect on innovation that is already in progress.
Owen
