20 years later, the IPv6 deployment rate reached 10%.

20 years later, the IPv6 deployment rate reached 10%.

In January 1996, the new cornerstone of the Internet, RFC 1883-Internet Protocol version 6th (IPv6), was born. Now 20 years later, the deployment rate of the new protocol that can avoid internet address depletion has just reached 10%.

This figure is derived from Google's statistics. According to the latest data in January 2, 2016, the Global IPv6 adoption rate is 10.09%, an increase of 4 percentage points (a compound annual growth rate of 6%) from 67% a year ago ), it is 10 times that of 2013 in 1%. Judging from the development speed in the past few years, the adoption rate is growing fast. However, according to Akamai's 2015 Q3 Internet situation report released at the end of last year, global IPv4 addresses are almost exhausted (among which, North America has been allocated, less than 5 million in Latin America, and only about 10 million in Asia Pacific ), to achieve full IPv6 deployment by 67%.

From the country perspective, the IPv6 adoption rate in the United States is 25.63%, which is the highest in countries of the same scale. The adoption rate of Belgium in Europe reached 44.32%, which is also the highest in the world. The IPv6 adoption rate in China is only 2.07%, and the stability and latency of IPv6 connections are worse than those of IPv4 because there may not be many IPv6 websites or there is a problem with the connection.

The CGN (Carrier-level network address translation) technology is used for temporary solutions in many countries with low IPv6 adoption rates, including China, that is, private addresses with relatively unrestricted addresses allocated by carriers, and then map it with the public address. This technology can save the use of a batch of public addresses. However, this technology cannot fundamentally solve the problem as the user's concurrent online rate continues to rise at any time. With the promotion of Iot applications that require a large number of addresses, the address shortage problem will become more serious in the next few years.

The deeper the green color, the higher the collection rate. The deeper the red color, the lower the collection rate.

However, why is IPv6 adoption so difficult? The main reason is that to fully upgrade the IP protocol to version v6, IPv6 must be supported for all systems, firewalls, server load balancers, routers, and management systems from the client to the server, any failure in this intermediate stage will lead to communication failure. Therefore, it is difficult to see explosive growth in IPv6 adoption.