Is all (or most) of the software / tools you use ready for IPV6 ?
So use a domain name instead of direct IP access?

Ref:
AWS: IPv4 addresses cost too much, so you’re going to pay | Hacker News
https://news.ycombinator.com/item?id=36942424

We just tailscale (well, headscale, tailscale and wireguard) the crap out of everything that doesn't need to expose their services, and hide them behind several ingress with IPv4. Let SNI do the host routing stuff. Tailscale CGNAT hole punching is magic.

Software defined networking (SDN) >> IPv6. It does get confusing though, when things span multiple overlay networks layers (e.g. docker network, then tailscale, then AWS VPC, etc).

This post has been edited by angch: Aug 6 2023, 02:10 PM

Changes may be pain.
But drag may be endless pain.