SECURITY MANAGEMENT SYSTEM FOR NETWORK

摘要

PURPOSE: To easily discover the uuauthorized user of a network in a short time. CONSTITUTION: In a table M2, addresses on the network of respective equipments connected to the network M1 are registered. A packet gathering means M3 gathers packets transmitted on the network M1. A discrimination means M4 discriminates whether or not the addresses of the respective packets gathered in the packet gathering means M3 are registered in the table and discovers the unauthorized use of the network from the packet whose address is not registered in the table M2.