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Re: Definitive Guide to IPv6 adoption


From: Owen DeLong <owen () delong com>
Date: Mon, 18 Oct 2010 11:09:43 -0700


On Oct 18, 2010, at 10:10 AM, Jack Bates wrote:

On 10/18/2010 11:45 AM, Owen DeLong wrote:

More accurately... A /48 per customer end-site...


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).


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



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