Connection control system, connection control equipment and connection management equipment
First Claim
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1. A connection management apparatus to be coupled to a first gateway belonging to a first network and connecting to a first terminal, a second gateway belonging to a second network connecting to a second terminal, and a third gateway belonging to a third network, comprising:
- a transmission/reception unit connectable to said first, second and third networks; and
a CPU connected to said transmission/reception unit,wherein;
when a connection request issued from said first terminal to said second terminal is received by said transmission/reception unit, said CPU judges whether or not a first connection directly between the first and second networks is permitted under a predetermined connection restriction between networks to be established from said first terminal to said second terminal;
when said first connection is not permitted to be established directly from said first network to said second network as a result of said judgment, said CPU generates an address identifying a second connection including said first gateway, said second gateway and said third gateway, which are connectable from the first terminal to said second terminal, and then said CPU transmits a data containing said generated address from said transmission/reception unit to said first terminal, and transmits an address registration request containing said generated address from said transmission/reception unit to said first gateway and said third gateway for starting the second connection from said first terminal to said second terminal via said third gateway; and
when a notification notifying that said second connection has finished is received by said transmission/reception unit from said first terminal, said CPU transmits an address deletion request contained in said address registration request from said transmission/reception unit to said first gateway and said third gateway.
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Abstract
With respect to a communication operation between networks having no connection permission, a connection control apparatus calculates a communicatable detour communication path from a connection policy database, and in such a case that a communication operation can be carried out between these networks having no connection permission, the connection control apparatus permits the communication operation via a detour communication path after authentication.
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Citations
18 Claims
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1. A connection management apparatus to be coupled to a first gateway belonging to a first network and connecting to a first terminal, a second gateway belonging to a second network connecting to a second terminal, and a third gateway belonging to a third network, comprising:
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a transmission/reception unit connectable to said first, second and third networks; and a CPU connected to said transmission/reception unit, wherein; when a connection request issued from said first terminal to said second terminal is received by said transmission/reception unit, said CPU judges whether or not a first connection directly between the first and second networks is permitted under a predetermined connection restriction between networks to be established from said first terminal to said second terminal; when said first connection is not permitted to be established directly from said first network to said second network as a result of said judgment, said CPU generates an address identifying a second connection including said first gateway, said second gateway and said third gateway, which are connectable from the first terminal to said second terminal, and then said CPU transmits a data containing said generated address from said transmission/reception unit to said first terminal, and transmits an address registration request containing said generated address from said transmission/reception unit to said first gateway and said third gateway for starting the second connection from said first terminal to said second terminal via said third gateway; and when a notification notifying that said second connection has finished is received by said transmission/reception unit from said first terminal, said CPU transmits an address deletion request contained in said address registration request from said transmission/reception unit to said first gateway and said third gateway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A connection control system to be coupled to a first a gateway belonging to a first network and connecting to a first terminal, a second gateway belonging to a second network and connecting to a second terminal, and a third gateway belonging to a third network, comprising:
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a connection control apparatus including a first transmission/reception unit connected to said first, second and third networks and a first processor connected to said first transmission/reception unit; and an address generation apparatus including a second transmission/reception unit connected to said first, second and third networks and a second processor connected to said second transmission/reception unit, wherein when a connection request issued from said first terminal to said second terminal is received by said first transmission/reception unit, said first processor judges whether or not a first connection directly between the first and second networks is permitted under a predetermined connection restriction between networks to be established from said first terminal to said second terminal, and when said first connection is not permitted to be established directly from said first network to said second network as a result of said judgment, said first transmission/reception unit transmits a generation request for generating an address required for establishing a second connection by which said first terminal is permitted to be connected to said second terminal via said third gateway to said address generation apparatus, and said second transmission/reception unit receives said generation request for generating said address, said second processor generates an address identifying said first gateway, said second gateway and said third gateway via which a second connection between said first terminal and said second terminal is permitted to be established, and said second transmission/reception unit transmits a data containing said generated address to said first terminal and then transmits an address registration request containing said generated address to said first gateway and said third gateway for starting the second connection; and when an notification notifying that said second connection has finished is received by a transmission/reception unit of said address generation apparatus from said first terminal, said second transmission/receptions unit transmits an address deletion request contained in said address registration request to said first gateway and said third gateway. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification