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.