[124900] in North American Network Operators' Group
/31's again (Re: IPv6 Newbie)
daemon@ATHENA.MIT.EDU (Lamar Owen)
Wed Apr 7 11:52:49 2010
Date: Wed, 7 Apr 2010 11:51:12 -0400
From: Lamar Owen <lowen@pari.edu>
To: nanog@nanog.org
In-Reply-To: <op.varmrczttfhldh@rbeam.xactional.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tuesday 06 April 2010 08:10:14 pm Ricky Beam wrote:
> That's the equiv of a /31 in IPv4. Do you use /31's for p-t-p links in
> your IPv4 network(s)?
Yes, like many others (there was a thread on this on NANOG towards the end of
January, no? Yes; started 1/22/2010 by Seth Mattinen; I don't have a link to
an archive entry, because I have it in my own archives here).
It's amazing how many 'subnetting reference guides' I've found out there that
go as far as stating that /31's aren't even legal.... they'd really fall over
if they saw how I was using a /27's broadcast address as one end of a /31 in
one particular instance.... :-) RFC 3021, man, RFC 3021.
