Why the adoption of IPv6 takes so long?

2021-03-25 06:46:47 IPv6

IPv6 was born over twenty years ago. During all this time, it has not become widespread, at least its implementation is progressing rather slowly. As you know, IPv4 exhaustion is happening and IPv6 is created to solve the problem. In fact, IPv4 has never been "production". Vint Cerf, one of the fathers of the Internet and the developers of the TCP / IP protocol stack, explains: “When IPv4 was created, the developers had no idea how many devices would connect to the network. Therefore, the number of addresses was calculated based on the population of the planet. After the results of the experiment showed how many addresses the world needed, it was planned to launch a "full" version of the protocol. "

But IPv4 "broke" out of the experiment and began to be used everywhere. Therefore, many companies intend to switch (or have already switched) to the new version of the protocol. IPv6 is not just intended to replace the ending IPv4, it is a fundamentally new solution with additional functions.

Benefits of Using IPv6

One of the benefits of IPv6 is the ability to opt-out of using NAT. The new version of the protocol allows each device on the network to be assigned its own address, which eliminates difficulties with user identification and simplifies routing. So now we clearly understand that, with the number of devices connected to the Internet growing so rapidly, IPv6 is a key technology for the entire Internet.

Why Does IPv6 Implementation Takes So Long?

First of all, a critical mistake made in the development of a new protocol is the lack of compatibility with the current IPv4 protocol. Because of this, the transition to IPv6 does not provide a single, standardized solution for communicating with devices and systems that still use IPv4 address.

Secondly, there is still a possibility of bugs and errors on various equipment when switching to IPv6. A striking example of the fact that even large operators are not so easily given the transition to the sixth protocol: in early December, the news was published that due to a Cisco ASR error, Australian operator Aussie Broadband suspended IPv6 testing. Trials have been paused after a new bug was discovered in a Cisco ASR patch for a bug affecting firmware on Cisco ASR routers, the provider said. Therefore, this switching process can be risky.

And of course, the transition to IPv6 is very expensive. The Internet is built from millions of routers and switches that were originally designed to work with IPv4. Replacing or updating all of these devices takes time and budget. For an operator's network, replacing basic routers is not a daily routine. The point is that the lack of compatibility forces telecom operators to support both IPv4 and IPv6 at the same time. This increases the cost of network maintenance, and the benefits from this solution will only become visible after a time when other networks also switch to the new protocol.

IPv6 VS IPv4

But nevertheless, these problems of IPv6 are less significant than today's problem with the lack of IPv4 addresses, especially now, when the Internet of Things market is developing so actively. Therefore, the final transition to IPv6 is inevitable and it is only a matter of time. That is why we believe that for the company developing an existing business or opening a new one, it is much more profitable to temporarily lease IPv4 addresses without investing a large budget in buying IPv4. When the time comes to switch to IPv6, the costs will be disproportionately low compared to current peak IPv4 prices.


It is crucial to choose between IPv4 and IPv6 because it will impact your business continuity. If you need assistance in making the decision, LARUS is ready to help. We are a one-stop IP address solutions company covering lease IP address, IPv4 brokerage including buy IP address, and selling IP address and IPv6 training. If you are interested in our service, please leave your contact below or live chat with our specialists at the right bottom.