[120491] in North American Network Operators' Group
Re: IPv6 allocations, deaggregation, etc.
daemon@ATHENA.MIT.EDU (Nathan Ward)
Tue Dec 22 21:34:44 2009
From: Nathan Ward <nanog@daork.net>
In-Reply-To: <5A6D953473350C4B9995546AFE9939EE081F7101@RWC-EX1.corp.seven.com>
Date: Wed, 23 Dec 2009 15:33:56 +1300
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
The assumption that networks will filter /48s is not the whole story.
The RIRs giving out /48s do so from a single pool that only contains /
48 assignments.
The RIRs give out /32s from a pool containing /32 or shorter prefixes
(ie /31, /30, etc. etc).
You will find that most networks filtering /48s allow them from the
pool with only /48s in it.
The root DNS servers are in /48s.
If you can justify getting a /32, then I suggest you do so, but if not
then don't worry, a /48 will work just fine. The networks that do
filter you will pretty soon adapt I expect.
Insert routing table explosion religious war here, with snipes from
people saying that we need a new routing system, etc. etc.
So with that in mind, do your concerns from your original post still
make sense?
--
Nathan Ward
