Whew, finally got thru almost all of my network setup technical debt and got everything on the new fiber. This involved:
- Making USB-C to 12V barrel cable so the new equipment is on the DC UPS.
- Removing gratuitous segmentation that had painful tradeoffs and made IPv6 hard.
- Removing a layer of NAT and routing thru public-IP VPS for outgoing IPv4 traffic.
- Turning off address assignment on ISP-provided router and having another box do that until I get an OpenWRT replacement that can do it all right.
Now everything is fast, all devices have IPv6, and all devices can access (2D and 3D) printers. 🎉