> > You are mixing cause and effect. In IPv4 the vast majority of nodes > > are limited to a single address at a time. > > Well, I don't know about windows boxes, but real operating systems have > supported virtual hosting in IPv4 for many years. Having multiple > addresses on a node, even a node with a single network interface, is > nothing new. My Windows-XP laptop currently has 14 IPv6 addresses, and 2 IPv4 addresses. The sky is not falling. -- Christian Huitema