[181165] in North American Network Operators' Group
Re: Is it safe to use 240.0.0.0/4
daemon@ATHENA.MIT.EDU (Ricky Beam)
Wed Jun 17 20:18:28 2015
X-Original-To: nanog@nanog.org
To: "William Herrin" <bill@herrin.us>
Date: Wed, 17 Jun 2015 20:18:23 -0400
From: "Ricky Beam" <jfbeam@gmail.com>
In-Reply-To: <CAP-guGUico1mUO7M2vNKm6GdFZsU9y+cA6rsXkH9D1XVQSJYhw@mail.gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Wed, 17 Jun 2015 18:38:32 -0400, William Herrin <bill@herrin.us> wrote:
> You may be confused. ARIN never possessed class E; it's held in
> reserve by IETF. As much as I enjoy a good ARIN bashing, they and John
> Curran are quite faultless here.
Quote-unquote, as in they didn't even bother *even proposing* to use Class
E space. The reasons were numerous, btw. (hardcoded restrictions,
erroneous classification as multicast, not worth the effort, etc.)
> Given how slowly IPv6 is deploying, this choice may prove to have been
> shortsighted.
I doubt it. As you said, there is A LOT of crap out there that would have
to be updated. Pulling a number out of the air, I'd guess *most* in-use
devices would NEVER see such an update. Even from companies that do still
exist. (Sadly, those are also devices that aren't going to see IPv6,
either.)
