Packet transfer apparatus

摘要

A server (1) collects network administration information of terminals connected to the self-segment, assembles the collected network administration information into packets, and transfers the packets to other segments. The server (1) stores the relationship, as a table, between the low-level layer address of each terminal connected to a corresponding segment and the corresponding high-level layer address on the basis of the collected network administration information and the network administration information included in packets transferred from other segments, and performs packet transfer between terminals through the segments by looking up this table.