The way I think about IPv6 is that it's an entire second network which happens to frequently coexist on the same layer 1 and layer 2 equipment. That said, I th

The way I think about IPv6 is that it's an entire second network which happens to frequently coexist on the same layer 1 and layer 2 equipment. That said, I think there's often a strong argument for only using IPv6 for the internal parts of a network. IPv6 actually simplifies things, and where IPv4 remains needed, it can be encapsulated and routed over a v6 network. But it takes a team which understands the v6 world and is able to take advantage of the benefits for this to become a reality.