The Internet Protocol (IP) is the language that computers use to communicate with each other on the Internet; it works much like phone numbers, which let us connect one telephone to another.
Internet Protocol version 6 (IPv6) is the new version of the Internet Protocol. The addresses used by the current version of the Internet Protocol, IPv4, are nearly all used. At Google, we believe that IPv6 is essential to the continued health and openness of the Internet – and that by allowing all devices to talk to each other directly, the launch of IPv6 will enable future innovation and growth for the Internet.