[182126] in North American Network Operators' Group
Re: Dual stack IPv6 for IPv4 depletion
daemon@ATHENA.MIT.EDU (Mel Beckman)
Fri Jul 10 16:06:11 2015
X-Original-To: nanog@nanog.org
From: Mel Beckman <mel@beckman.org>
To: John Curran <jcurran@arin.net>
Date: Fri, 10 Jul 2015 20:06:03 +0000
In-Reply-To: <B1BF4B70-DD2C-48E9-8AA9-A85157AB7C35@arin.net>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org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