Ramblings of an aging IT geek
← Ramblings of an aging IT geek
networking

ipv6 at home, eventually

Getting a working IPv6 prefix onto the home LAN after years of putting it off, and the one device that refused to cooperate.

Coloured network cables in a patch panel

I have been meaning to do IPv6 properly at home for about a decade. Every time I started, something more urgent appeared, and I quietly told myself the dual-stack life could wait. This weekend it finally happened, mostly because I ran out of excuses.

The ISP hands out a /56 over DHCPv6 prefix delegation, which is plenty. The router pulls that, carves a /64 per VLAN, and hands addresses out via SLAAC with a sprinkling of stateless DHCPv6 for DNS. The bit that took me longest was realising my firewall rules were all IPv4-shaped and silently dropping everything on the v6 side. Once I mirrored the rules, ping6 to the outside world lit up and I felt absurdly pleased with myself.

The one holdout was an old NAS that does SLAAC but ignores the DNS option, so it sat there with global connectivity and no idea how to resolve a name. A static entry sorted it. Not elegant, but it works, and "it works" is the whole point of a home network.

Was it worth ten years of procrastination? No. Should I have done it sooner? Obviously. The internet has been quietly dual-stack around me the entire time, and now my house has finally caught up.