The Ongoing IPv6 Transition: Challenges, Progress, and Future Outlook
Although IPv6, standardized in 1998, offers a 128‑bit address space, its global rollout remains sluggish—only about 40 % of users have IPv6, early tunneling methods proved unreliable, and NAT and CDNs lessen urgency—so experts predict a dual‑stack Internet persisting until roughly 2045, with a gradual shift toward a name‑centric architecture rather than a rapid replacement of IPv4.