[Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

valdis.kletnieks at vt.edu valdis.kletnieks at vt.edu
Fri Oct 19 15:09:41 EDT 2018


On Fri, 19 Oct 2018 11:53:21 -0700, Dave Taht said:
> An attempt to make "E" useful died a decade ago:
> https://tools.ietf.org/html/draft-fuller-240space-02
>
> Still, it would be a better world with 268m more routable ips in it,
> wouldn't it?

Not really.  That ship sailed long ago - class E space is effectively useless
until a large percentage of systems are upgraded to support it.  And if you're
going to be upgrading all the CPE and ISP hardware/software *anyhow*, you may
as well enable and use IPv6 and get a lot more than 268M routable addresses for
the effort.

And its presence in bogon lists will make it quite the whack-a-mole challenge.
Those of us who have been around for a while can remember all the fun when 8/8
and 12/8 were no longer bogons.  And the net was a lot smaller then, with a lot
fewer moles that needed whacking.

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