IPv6 Header Format Explained
The IPv6 header byte by byte: 40 bytes fixed, 8 fields, extension headers, Next Header chaining, comparison to IPv4, and what it looks like in Wireshark.
5 min read
IPv6
The 128-bit successor to IPv4 and the protocol every modern network is migrating toward. Articles tagged IPv6 cover address format and types, the simplified header, Neighbor Discovery, SLAAC autoconfiguration, and Cisco IOS XE configuration.
5 posts
IPv6 Configuration on Cisco IOS XE
IPv6 configuration on Cisco IOS XE: enabling IPv6, static and SLAAC addresses, RA options, OSPFv3, BGP for IPv6, EIGRP for IPv6, VRRPv3, dual-stack, and first-hop security.
6 min read
IPv6 Address Types: Link-Local, Global, Unique Local
The six IPv6 address types: global unicast, link-local, ULA, multicast, anycast, and special. Prefixes, scope, when to use which, and design implications.
5 min read
IPv4 vs IPv6: The Real Differences
IPv4 vs IPv6 in 2026. Header differences, ARP vs Neighbor Discovery, SLAAC vs DHCP, NAT vs end-to-end, and dual-stack as the migration reality.
6 min read
IPv6 Address Format Explained Byte by Byte
IPv6 addresses are 128 bits as eight groups of four hex digits. The two compression rules, prefix notation, EUI-64 interface IDs, special addresses, and worked examples.
4 min read