Patent ID: 9215237
Filing Date: 2015-12-15
Classification: H04L

Abstract:
1. A communication system, comprising: an information acquisition unit that acquires information for determining an isolation level to which a user terminal belongs, from said user terminal; an isolation level determination unit that determines an isolation level to which said user terminal belongs, based on said acquired information; an isolation level information storage unit that defines whether or not access is possible to respective access destinations for each isolation level; an access control unit that causes at least one forwarding node to implement forwarding or dropping of a packet, in accordance with whether or not access is possible to said respective access destinations; and said at least one forwarding node that forwards the packet in accordance with control of said access control unit, wherein said access control unit controls said at least one forwarding node closest to a terminal of a forwarding path from said terminal to said access destinations at least by setting, in said at least one forwarding node, a packet handling operation that determines a matching rule matching the packet and a process to be applied to the packet that conforms to said matching rule.