As part of my recent (and ongoing) project to implement native IPv6 on my own infrastructure (except at home… I’m looking at you Hyperoptic), I decided to try to dual-stack as much as possible so that when I have IPv6 connectivity, services would prefer that over IPv4, without making things unavailable.
As it turns out, Proxmox’s Web interface (pveproxy) doesn’t listen on the IPv6 address family by default. This stumped me for a little while, but its pretty simple to fix when you know whats going on.
This post is going to spend most of its time explaining why this happens rather than the fix. If you’re just here to see how to do it, check below.