[100150] in North American Network Operators' Group
Re: 240/4
daemon@ATHENA.MIT.EDU (James R. Cutler)
Thu Oct 18 17:00:17 2007
In-Reply-To: <Pine.LNX.4.61.0710181429400.24441@soloth.lewis.org>
From: "James R. Cutler" <james.cutler@consultant.com>
Date: Thu, 18 Oct 2007 16:49:02 -0400
To: nanog@merit.edu
Errors-To: owner-nanog@merit.edu
Consider an auto company network. behind firewalls and having
thousands and thousands of robots and other factory floor machines.
Most of these have IPv4 stacks that barely function and would never
function on IPv6. One company estimated that they needed 40 million
addresses for this purpose.
Cutler
On Oct 18, 2007, at 2:53 PM, Jon Lewis wrote:
> 2) Anyone care to guess how much network gear is deployed that
> either won't or can't be upgraded? i.e. Old cisco gear without the
> RAM and/or flash to handle a newer code train...the old one in use
> long since unsupported, or gear from vendors that no longer exist?
> As long as this stuff generally works, nobody's likely to replace it.
James R. Cutler
james.cutler@consultant.com
