> From: Randy Bush [randy@xxxxxxx] > > large ipv4 deployments want an > absolutely minimal, compatible, feature-match upgrade to ipv6. I'm not in the loop, but it seems to me that this is obvious. What has the IETF done to define a way that IPv4 deployments can make the transition they want? If IPv6 is better than IPv4 in every way, this goal must be attainable. Dale