And what is most embarrassing is that truly fully IPV6 capable internet requires less of and lower powered "routers". "routers" will cost single thousands instead of hundred of thousands adn be more capable, speeedier. DDoS mitigations are easier in ipv6 too. And if every customer can have 2^64 IP (or even 2^56) addresses then you do not need "ports" anymore, every service on your server can have their own IP, or even every service customer can have their own ip address how much will that simplify CODE (source of bugs, of latency, of unnecessary payments) and lower energy requirements of login infrastructure ? and debugging ? also just right from bat you can trivially see on upstream router who is initiating DOS... PKI+IPv6 is gift from GODs! If your certificate is not issued for specific ip then "openssl" can drop connection in that instance. Is not that little bit more secure ? faster? less clunky. and with more oversoght for network "manager" ?