[157234] in North American Network Operators' Group
Re: Is a /48 still the smallest thing you can route independently?
daemon@ATHENA.MIT.EDU (Scott Weeks)
Thu Oct 11 17:20:23 2012
Date: Thu, 11 Oct 2012 14:25:16 -0700
From: "Scott Weeks" <surfer@mauigateway.com>
To: <nanog@nanog.org>
Reply-To: surfer@mauigateway.com
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
--- jrhett@netconsonance.com wrote:
From: Jo Rhett <jrhett@netconsonance.com>
I've finally convinced $DAYJOB to deploy IPv6. Justification for the IP space is easy, however the truth is that a /64 is more than we need in all locations. However the last I heard was that you can't effectively announce anything smaller than a /48. Is this still true?
Is this likely to change in the immediate future, or do I need to ask for a /44?
----------------------------------------------------
A /48 is 65536 /64s and a /44 is 16x65536 /64s. If you
only need one subnet (1 subnet = 1 /64), why would you
try to get 16x65536 subnets, rather than the 65536 you
have in the /48?
scott
