> Consider the case where my home network is IPv6, my broadband provider > is IPv4 only and the box I am ultimately contacting is IPv6. > There you have an IPV6 NAT box, its called the legacy IPv4 Internet >and its going to be around for at least as long as Telex survived after >the invention of email. The first email message that I sent was in 1974 but I believe it was around earlier than that. Here in the UK, BT plans to shut down the Telex network by next month, March 2008 according to <http://www.sinet.bt.com/331v2p1.pdf> It is becoming increasingly clear that we are not in a transition to IPv6, but in a transition to IPv4-IPv6 coexistence and interoperation. It's messy but that is what is coming down the road. --Michael Dillon _______________________________________________ Ietf@xxxxxxxx http://www.ietf.org/mailman/listinfo/ietf