IPv6 Address Types Explained: Unicast, Multicast, and Anycast (2026 Guide)
Last updated: July 2026 · Reviewed against: RFC 4291, RFC 4193, and official Cisco IOS documentation. IPv6 replaces IPv4’s aging 32-bit addressing with a 128-bit scheme that provides roughly 340 undecillion addresses. But the address space is only half the story. To design, configure, and troubleshoot modern networks, you need to understand how IPv6 addresses...
