> I disagree with Keith on some basic assumptions. IPv6 is not a software > upgrade in its' dominant mode.
actually, I think we do agree. *existing* systems can migrate to IPv6 with a software upgrade, and it's important to have a story for existing systems.. but my guess is that the vast majority of IPv6 systems in the long run will not be general-purpose computers (existing or new), but fixed-function appliances that will ship with IPv6 built-in. Keith
