This XOR metric ensures that every node has a unique distance relative to any key, and it allows efficient routing without requiring global knowledge. Each eMule client maintains a routing table organized into k-buckets . These buckets store contact information (IP, port, Node ID) of other peers. The table is structured by the prefix of the node ID—closer nodes (shorter XOR prefix) are stored in specific buckets.
Distance (A, B) = A XOR B
Kad is not a "server" but a network of equals. The moment you connect, you are the server. Last updated: 2025. Protocol version: Kad 2.0 (eMule 0.50a and later). serveur emule kad