ROUTING AUTHENTICATION DEVICE, ROUTING AUTHENTICATION SYSTEM, ROUTING AUTHENTICATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To perform routing authentication even about a network composed of a plurality of switches which transfer packets in accordance with an arbitrary rule.SOLUTION: A controller control part 205 sends out a packet with a TTL of 2 from a controller to a switch. In an adjacent switch specification part 206, a switch of a transmission source of the packet transferred to the controller is specified as the switch lastly confirmed as a transfer route of the packet.