COMMUNICATION TERMINAL, RULE DISTRIBUTION APPARATUS AND PROGRAM

摘要

A communication terminal (10) comprises a communication device (11) for connection to a network and a firewall (12) functioning according to the firewall rule, a rule storage section (14) for holding the network identification information and the firewall rule in association with each other, a rule storage control unit (15) for storing the firewall rule received from a rule distribution apparatus (20) in association with the network identification information to which the rule is applied in the rule storage section (14) and a firewall control unit (13) for detecting and monitoring the network identification information and when identification information is newly detected or altered, reading the firewall rule associated with the detected or altered identification information from the rule storage section (14) to set it to the firewall (12) or to update it.