Back when I started in this business, IPv4 was plentiful and IPv6 was the future that was always coming. Twenty years later, I am still waiting.
For science, I leased an IPv6-only instance from HostHatch last month. $1.50 for 1GB, tempting enough to test. The theory: NAT64 or DNS64 handles legacy, modern stacks prefer v6, costs drop as providers conserve v4 space.
The reality: GitHub pushes fail half the time. Docker registry pulls timeout. My monitoring dashboard—hosted on legacy infrastructure—cannot reach the instance. I spent more hours debugging connectivity than the savings justified.
The final insult: HostHatch's "IPv6-only" actually runs CGNAT fallback for v4 egress. So I am sharing a v4 address with hundreds of instances, blacklisted on every reputation list, unable to send email or even apt-get reliably. The point of v6-only is supposed to be purity. This is pollution wearing a v6 hat.
Kids these days will call this progress. Mark my words: v4 scarcity will drive prices up, but v6-only remains a toy for enthusiasts until the last legacy service dies. That day is not 2024. Perhaps not 2030.