Tag
neighbor-discovery
- Mar 21, 2026 Interface Configuration Order: Link State, Address Assignment, and Route Installation Why an interface can hold a valid address and still be unreachable, how duplicate address detection suspends usability, and which piece of state to inspect first. networking
- Dec 19, 2025 Neighbour Cache Staleness and Peers That Become Unreachable How ARP and Neighbor Discovery entries age through reachable, stale, and probe states, and why a stale entry keeps sending traffic to an address that has moved. networking
- Jul 25, 2024 IPv6 Forwarding, Extension Header Chains, and Scoped Addresses How a fixed forty-byte header pushes options into a chain a router must walk, why scopes are part of the address, and which rules a forwarder applies differently than in IPv4. networking