Global IPv4 address exhaustion
On the afternoon of November 26, Beijing time, according to foreign media reports, the European Network Coordination Center (RIP NCC), which is responsible for Internet resource allocation in the UK, Europe, the Middle East and some Central Asia, announced today:
All 4.3 billion IPv4 addresses in the world have been allocated, which means that no more IPv4 addresses can be allocated to ISPs and other large network infrastructure providers.
Part of an email from Nikolas pediaditis
The translation is as follows:
Today, on November 25, 2019, at UTC + 1 15:35, we made the final / 22 IPv4 allocation from the last remaining addresses in the free pool. Now, we’ve run out of IPv4 addresses.
For network operators, our announcement is not surprising – the rip community has long expected and planned to run out of IPv4. In fact, it is because of the responsible management of these resources by the community that we are able to provide / 22 distribution to thousands of new networks in our service area after reaching the last / 8 in 2012.
From the email, you can also see that we are not surprised by this matter, but have been prepared for it.
IPv4 has been used for more than 30 years. In the early days, the Internet was designed for the U.S. military, without considering that it would become such a huge global network.
In the 21st century, with the rapid popularization of computers and smart phones, the Internet began to develop explosively, more and more Internet devices appeared, more and more people began to connect to the Internet. This means that more and more IP addresses are needed.
In fact, as early as 1990, IETF (Internet Engineering Task Force, established at the end of 1985, is the most authoritative technology standardization organization in the world) began to plan the next generation of IPv4 protocol.
Yes, it’s called IPv6 which can “assign an IP to every sand on the earth”.
In addition, according to the prediction of experts at the beginning of this century, our IPv4 address has dried up tens of thousands of times. The main reason why we have been able to “survive” up to now is that in addition to IPv6, we have some technologies that can alleviate address shortage in disguise, such as nat (network address translation).
Last month, at the sixth World Internet Conference held in Wuzhen, China Telecom said: “China Telecom man, mobile network, backbone network, IDC, etc. have realized the commercial deployment of IPv6. At present, it has built the largest IPv6 network with the most complete business form,” and has allocated IPv6 addresses for more than 300 million users. “.