Shivlu left an interesting comment to my IPv6 is not ready for residential deployment post. He wrote: “Still no customer is ready for IPv6. How do I convince them?” The unfortunate answer to this problem is: you can't, but they'll only hurt themselves. If they persist long enough, they’ll become obsolete.
The migration issues are just one of the topics covered in the Enterprise IPv6 Deployment workshop. You can attend an online version of the workshop or we can organize a dedicated event for your team.
The web content providers have long realized that their customers have too many choices. Zvezdan Martič, one of the participants in the last year’s Slovenian IPv6 summit roundtable succinctly explained this phenomenon: “nobody cares whether my web site can be viewed in Internet Explorer or Firefox; if I don’t support the major browsers, the customers will find one of my competitors that does.”
In the IPv6 world, the likely unfolding of events will go along these major milestones:
Dual-stack clients and pilot IPv6 content. We’ve entered this phase 15 years ago, when the IPv6 RFCs were published, but it only gained significant traction in the last months. Not surprisingly, Google has been on the forefront of IPv6 content deployment; they are one of the few companies that make true profit off the Internet and missing just a few percents of their customer base is a huge loss.
IPv6-only clients and NAT64. IPv4 addresses will run out. You can live in denial, but it will happen. Large portions of the current Internet content will not be reachable over IPv6. Knowing the procrastinating mindsets of most PHBs I am willing to bet on that. The early adopters of IPv6-only clients (most likely the mobile networks) will have to deploy NAT64 to reach IPv4 content. However, as good as NAT64 might be, it will have deficiencies that will make native IPv6 applications more compelling.
New IPv6-only applications. As soon as the critical mass of IPv6 clients will emerge, someone will create a snowball application that will only run on IPv6 (because life without NAT is easier), prompting users to move to IPv6 (just imagine Facebook having some exclusive features available only to IPv6 clients).
IPv4 content becomes obsolete. Once the customers start using IPv6 exclusively, they will start ignoring old content reachable over the NAT64 path. At that point in time, the few web sites that ignored the new reality will slowly wither and die.