> Close to 3 decades and we are barely scraping 50%
That's what I'd regard as a success.
With majority IPv6 in most leading economies, and getting close to or just over 50% worldwide, the tipping point has been reached and IPv6 is now the dominant IP protocol. The future is a long slow slide of the public use of IPv4 into oblivion, just as envisaged in the original IPv6 planning, and IPv4 support will eventually become a compatibility layer tunnelled over all-IPv6 networks, just as IPv6 was originally tunnelled via IPv4. In the longer-term future, once public IPv4 traffic has reduced to only a couple of percent, ISPs will start to turn it off as an irrelevance, leaving v4 as a legacy protocol for LANs and private networks. Expect this sometime in the late 21st century or early 22nd. Some very old IoT devices may stop working, but everyone who cares about any important use will have replaced them long before.
Meanwhile, the Internet will continue to operate seamlessly for everyone else.
That's what I'd regard as a success.
With majority IPv6 in most leading economies, and getting close to or just over 50% worldwide, the tipping point has been reached and IPv6 is now the dominant IP protocol. The future is a long slow slide of the public use of IPv4 into oblivion, just as envisaged in the original IPv6 planning, and IPv4 support will eventually become a compatibility layer tunnelled over all-IPv6 networks, just as IPv6 was originally tunnelled via IPv4. In the longer-term future, once public IPv4 traffic has reduced to only a couple of percent, ISPs will start to turn it off as an irrelevance, leaving v4 as a legacy protocol for LANs and private networks. Expect this sometime in the late 21st century or early 22nd. Some very old IoT devices may stop working, but everyone who cares about any important use will have replaced them long before.
Meanwhile, the Internet will continue to operate seamlessly for everyone else.