IPv6 vs. IPv4
IPv6 stands for Internet Protocol Version 6 (IPv6). The main driving force for the redesign of the Internet Protocol was the foreseeable shortage of IPv4 addresses that are in operation since 1981. While the IPv4 address space contains only about 4.3×109 (4.3 billion) addresses, IPv6 supports approximately 3.4×1038 (340 undecillion) unique addresses, deemed enough for the foreseeable future.


