IPv6 Deep Dive: Link-Local, SLAAC, and Neighbor Discovery
Networking from Scratch (lesson 14) — how a 128-bit IPv6 address is built and compressed, why every interface has three of them at once, how SLAAC lets a host self-configure with no DHCP, what replaces ARP and broadcast, the privacy extensions that change your address daily, and the dual-stack reality that’s still the norm 25 years in.