Re: draft-ietf-nat-protocol-complications-02.txt

[Keith Moore]

>     > 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.

IPv4 vs. IPv6 isn't an either/or - it's quite reasonable for a site
to run IPv4 (with NAT if necessary) alongside IPv6.  I expect that
most sites already on the net will do exactly this - use IPv4 with 
NAT for traditional applications that NAT supports and use IPv6 for 
the other ones.

Keith