nanog mailing list archives

Re: Is it safe to use 240.0.0.0/4


From: Ca By <cb.list6 () gmail com>
Date: Wed, 17 Jun 2015 18:17:53 -0700

On Wednesday, June 17, 2015, Ricky Beam <jfbeam () gmail com> wrote:

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.)


 https://tools.ietf.org/html/draft-wilson-class-e-02

Proposed and denied. Please stop this line and spend your efforts on ipv6


 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.)



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