Sure there is, it's called IPv4. For profit companies will continue to beat that dead horse with things like CGNAT for as long as IPv6 continues to fail. The fa

Sure there is, it's called IPv4. For profit companies will continue to beat that dead horse with things like CGNAT for as long as IPv6 continues to fail. The failure is a process not an end state, IPv6 is falling for two decades now and the eventual complete deployment in the year 2040-2050 will be it's complete and giant failure, unless something else comes along to make it irrelevant.