The world in which IPv6 was a good design
Summary
An opinionated, historical look at IPv6 design and why it hasn’t eliminated legacy network complexity. The author traces the evolution from bus networks to Ethernet, bridging, and SDN, highlighting the ongoing interplay between MAC and IP addressing, ARP, DHCP, and mobility, and discusses roaming concepts like QUIC and MinimaLT. The piece argues that layers are rarely removed, and IPv6 alone can’t erase entrenched infrastructure.