[arin-ppml] ARIN-prop-127: Shared Transition Space for IPv4 Address Extension

[George Bonser]

> 
> I would be in favor of using the "least desirable" /10 ARIN has
> available (or can acquire) for this purpose, whatever that happens to
> be. I suggest we punt the question to staff - ask them to make the
> determination which /10 is least useful as public unicast addresses.
> No need for us to micromanage that detail at the policy level.
> 

The problem I see with this is that it potentially enables v4 in
perpetuity.  People have had a decade to get v4-only stuff out of their
networks.  V4 is dead, we need to stop bending over backwards to allow
its continued used and allow it to die.