Technically it's just 128 bits, it doesn't matter how you represent it. I've written this IPv4ES solution, which allows you to use 128 bit addresses using IPv4

Technically it's just 128 bits, it doesn't matter how you represent it. I've written this IPv4ES solution, which allows you to use 128 bit addresses using IPv4 format. https://www.sami-lehtinen.net/blog/ipv4es-the-perfect-solution-to-ipv6-adoption-resistance https://www.sami-lehtinen.net/blog/ipv4es-the-perfect-soluti...