The Internet Engineering Task Force (IETF), which for all intents and purposes is the standards body of the Internet Protocol, has declared that “IPv6 is no longer considered optional.” In RFC 6540 officially published the other week as an Internet Best Current Practice, the IETF cites the impending depletion of IPv4 address space with the continued growth of the Internet as drivers for widespread IPv6 deployment. While the RFC defines requirements for all developers of IP nodes, the main target seems to be consumer device vendors, many of whom have delayed implementation of IPv6.