EXTENSION CONNECTION METHOD AND SYSTEM DEVICE FROM DOMESTIC VIRTUAL EXCLUSIVE NETWORK TO INTERNATIONAL VIRTUAL EXCLUSIVE NETWORK

摘要

PURPOSE: To provide an extension connection method/system device between a domestic virtual exclusive network and an international virtual exclusive network in order to perform the international communication by means of an international domestic VPN extension number or a proper VPN extension number regardless of an on-net or off-net state. ;CONSTITUTION: A domestic network service control station 4 receives an international VPN extension number from a domestic VPN contract subscriber A and then retrieves a prefix corresponding to the international VPN extension number out of an international extension connection data table 14. Then the station 4 instructs a domestic subscriber exchange 1 to connect a domestic virtual exclusive network to an international communication network β by means of an international routing number including the corresponding prefix added to the international VPN extension number.;COPYRIGHT: (C)1996,JPO