[ppml] 240/4

[vixie at vix.com]

> How much of the /4 would we need for rfc1918 type space?  Would a /6 be 
> enough?

i don't think so.  the folks who find 10/8 inadequate want a LOT LOT LOT
more, not just a little more.

> It might be wise to save the rest of it for future, as yet unimagined use.
> I wonder if any of the various encapsulation approaches to id/locator split
> could make use of some of that space.

there is no future for IPv4 nor any reason to reserve or experiment.  we're
just looking for some fumes to breathe while we finally take IPv6 seriously.