new IPv6 policy framework

On Tue, 25 Sep 2001, Mirjam Kuehne wrote:

> I agree with you that there will probably be a long transition
> period. The assumption however is that a network will at some stage be
> fully migrated to IPv6 and the IPv4 addresses will not be needed
> anymore. 

An ISP is quite likely to continue offering IPv4 services for many, many
years to come even after launching an IPv6 service.   Unless IPv4-only 
customers are getting renumbered as the ISP's IPv4 space is compacted
to enable chunks to be handed back, this won't happen.  And renumbering
is of course problematic.   The most natural course is to not have any 
precondition on handing back IPv4 space, but of course to allow it if the 
ISP chooses.  There seems to be little need to make such declarations now?

tim