NETWORK SYSTEM, ACCESS SERVER AND AUTHENTICATION SERVER

摘要

PROBLEM TO BE SOLVED: To provide a network system capable of more easily and unitarily managing presetting between an access server and an authentication server. SOLUTION: In the network system composed of an access server group 100 in a group constitution composed of plural access servers 102 and 103 for connecting user devices 105 and 106 such as telephone sets outside a network 107 to the network and an authentication server 101 for holding the registered user information of the network and performing authentication processing with the access servers by using a shared key system, in the case of performing authentication processing with the authentication server 101, the access server composing the access server group 100 reports authentication client information for group identification to the authentication server 101 and the authentication server 101 performs authentication discrimination by determining a shared key to be used based on the authentication client identification information reported from the access server.