The China Next Generation Internet (CNGI) was launched in 2003 as the initial IPv6 project in Mainland China and the largest pure IPv6 Internet in the world. Technically, the CNGI is capable of implementing network addressed based on real IPv6 source addresses, meaning that it can find real locations through a user's IP address. It is also capable of tunnel technology, which means running and using IPv4 applications in an IPv6 environment. China...