> From: Keith Moore <moore(_at_)cs(_dot_)utk(_dot_)edu>
> I don't see what you're getting at. the outside sites may be running v4
> with a limited number of external addresses ... if they are running v6
> they will have plenty of external addresses.
Not external *IPv4* addresses, they won't - which is what kind of addresses
they need to communicate with other IPv4 sites.
> if the remote sites are *only* running IPv4, having v6 locally won't
> help much. ... it's generally true that if you're talking between a
> v6-only and v4-only host you have to accept the limitations of NAT.
That's the point I've been trying to make.
Noel