[118199] in North American Network Operators' Group

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Re: ISP customer assignments

daemon@ATHENA.MIT.EDU (Ricky Beam)
Tue Oct 13 21:19:58 2009

To: "nanog@nanog.org" <nanog@nanog.org>
Date: Tue, 13 Oct 2009 21:19:19 -0400
From: "Ricky Beam" <jfbeam@gmail.com>
In-Reply-To: <4AD4818F.1060701@justinshore.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Tue, 13 Oct 2009 09:33:03 -0400, Justin Shore <justin@justinshore.com>  
wrote:
> He didn't really give much of a reason for the /127s yet.  I think it's  
> coming up in a later session.  I think it basically boiled down to  
> whether or not the customer would actually use anything bigger.  I'll  
> write back when we get into that discussion.

It's the IPv6 equiv of an IPv4 /30 link network.  Then a /64 or whatever  
can be aimed to that link address.  This is exactly what Bellsouth does  
for business DSL: the link has a dynamic address and your netblock is then  
routed to it. (this is confusing and unworkable for a lot of cheap  
hardware.)


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