What is IPv6?

IPv6 is the abbreviation of English "Internet Protocol Version 6". It is a next-generation IP protocol designed by the Internet Engineering Task Force (IETF) to replace IPv4. Its number of addresses can be said to be Grained sand has an address ^[1] .

As of early 1992, some recommendations on Internet address systems were published in the IETF (

The IPv6 protocol mainly defines three types of addresses: Unicast Address,

IPv6 cannot replace IPv4 immediately, so IPv4 and IPv6 will coexist in the same environment for quite some time. To provide a smooth conversion process and minimize the impact on existing users, a good conversion mechanism is required. This issue is the main goal of the IETF ngtrans working group. Many conversion mechanisms have been proposed, and some have been used on 6Bone. IETF recommended

The original Internet security mechanism was built only at the application level, such as E-mail encryption,

Although IPv6 is still only in the research stage globally, many technical problems need to be further solved, and the equipment supporting IPv6 is also very limited. But in general, the development of global IPv6 technology continues, and with the depletion of IPv4, many countries have realized the advantages brought by IPv6 technology, especially China, which has promoted Full-generation Internet deployment and large-scale commercial use. As IPv6 technologies become more and more perfect, problems such as the high cost of IPv6, slow development, and insufficient support will soon fade out of people's horizons ^[24] .