[123248] in North American Network Operators' Group

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Re: IP4 Space

daemon@ATHENA.MIT.EDU (Seth Mattinen)
Thu Mar 4 14:06:42 2010

Date: Thu, 04 Mar 2010 11:06:15 -0800
From: Seth Mattinen <sethm@rollernet.us>
To: nanog@nanog.org
In-Reply-To: <FA2E47FFA50291418803D2E7C1DF07F30A6A671D@SDEXCL01.Proflowers.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On 3/4/10 10:52 AM, Thomas Magill wrote:
> So to start off, I'm new to following this list so if these points have
> already been beaten into the ground, feel free to tell me to shut up.
> 
>  
> 
> So two things I wonder about the preservation of current IP4 space and
> delaying IP6 are:
> 
>  
> 
> 1.        Why don't providers use /31 addresses for P2P links?  This
> works fine per rfc 3021 but nobody seems to believe it or use it.  Are
> there any major manufacturers out there that do not support it? 
> 

I posed this to the list in January, and learned that apparently there
are still some vendors whose products choke with presented with a /31.
Search for thread "Using /31 for router links".

~Seth


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