[arin-ppml] Policy Proposal 118: IPv6 Subsequent Allocation

[michael.dillon at bt.com]

> The 6rd prefix is an RIR delegated IPv6 prefix.  It must encapsulate
an
> IPv4 address and must be short enough so that a /56 or /60 can be
given
> to subscribers. 

I'd rather see this kind of policy restricted to only 6RD unless someone
can come up with a descriptive term that includes 6RD and similar
IPv4 address mapping transition technologies so that the policy isn't
wide open to any and all crazy schemes that someone dreams up.

Basically tailor a policy to 6RD for temporary allocations that have
to be returned when 6RD is no longer needed. Make the language general
enough so that it also covers a plan that improves on 6RD but if the
plan requires permanent allocations, then reject it because it ain't
better.
Similarly if the plan doesn't allow for returning the allocations at the
same
time 6RD users are returning theirs then it ain't better, reject it, and
force
the ISPs to use 6RD instead.

This is not an area where we want or need to encourage too much
creativity. This
is an area where you want quick cheap belt and braces solutions that can
be dismantled
as soon as possible in favor of native v6.

--Michael Dillon