Hi, On Wed, May 28, 2025 at 04:24:05PM +0200, Rudolf E. Steiner via members-discuss wrote:
Dual-stack deployments and transition technologies (such as NAT64, DNS64, and 464XLAT) are well-established and allow for a practical coexistence of both protocols.
Dual-stack deployments are the worst of all worlds. You have to deal with IPv4, and add the complexity of another protocol on top, without being able to benefit from IPv6. Facebook has demonstrated 10+ years ago that IPv6 single stack is the way forward, with dual-stack being restricted to the (few) Internet- facing endpoints that need to talk to those late in adoption. As has T-Mobile USA for the eyeball space. [..]
Adoption of IPv6 should be driven by technical and economic incentives, not by the threat of forced obsolescence. Removing support for IPv4 would not solve the adoption problem - it would merely punish those who, for valid reasons, cannot yet migrate.
In 2025, all "valid reasons" have long been used up - there's only excuses left. Anything you claim "it cannot be done because..." was a short-sighted decision when purchasing a piece of software or hardware - there is nothing left out there (except in museums) that predates IPv6. That said, I do not think "removing IPv4 from the RIPE services" would have any beneficial impact at large - it would annoy a few LIRs to make sure that their NOC networks can reach an IPv6-only service, but will not have an impact on their Internet offerings. Now, regulatory demands, or search engine optimization incentives ["v6 gets a better page rank!"] might work... but with AI assisted search, page rank is becoming meaningless, so maybe not. We could just give up (but then stop complaining that there is not enough IPv4, this is well known). Gert Doering -- NetMaster -- have you enabled IPv6 on something today...? SpaceNet AG Vorstand: Sebastian v. Bomhard, Karin Schuler, Sebastian Cler Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (0)89/32356-444 USt-IdNr.: DE813185279