I for one think the more incompatible V4 and V6 are the better! There are only two things that ever made any sense: 1) try as hard as possible to be fully inter-operable with each other, or 2) full clean break. Clearly, there was never a 100% consensus on the goal. As is now, I see it as a chance to start over with so many silly things (ie, 12 layers of NAT for everything in the cloud). When you look at all the gripping about problems, it&#x27;s so much of a better pitch to think of it as this new global network to play with that opens more doors instead of some never-going-to-happen retrofit from hell.