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US 7,254,832 B1Granted
Firewall control for secure private networks with public VoIP access
AssigneeNortel Networks Limited
InventorSamuel H. Christie, IV
Life of this patent
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AssigneeNortel Networks Limited
InventorSamuel H. Christie, IV
Estimating the term…
A private network firewall 225 is treated as if it were a media gateway network entity. Doing so allows a media gateway controller 205 to exchange messages with the firewall 225 for purposes of securely setting up and tearing down pinholes in the firewall. With this ability comes the ability to provide secure VoIP calls between public 250 and private 220 networks. A call server or media gateway controller 205, that is approving the VoIP communication stream in a private packet data network requests, via a secure tunnel 230, that the firewall 225 open a pinhole filter for a specific source and destination address pair corresponding to media gateway endpoints, 210 and 260 respectively, using either MGCP (H.248) or COPS messages, for instance. The pinhole filter is then disabled when the session is complete.
A method of remotely controlling a firewall from a firewall controller in order to permit the flow of packet data through said firewall, the method comprising:
A firewall controller for permitting the flow of packet data, said firewall controller comprising:
A firewall responsive to a firewall controller for permitting the flow of packet data, said firewall comprising:
A firewall responsive to a media gateway controller for permitting the flow of packet data, said firewall comprising:
A computer program product for remotely controlling a firewall from a firewall controller in order to permit the flow of packet data through said firewall, the computer program product having a medium with a computer program embodied thereon, the computer program product comprising:
A computer program product in a firewall controller, said firewall controller operative with a firewall, the computer program product having a medium with a computer program embodied thereon, the computer program product comprising:
A computer program product in a firewall, said firewall responsive to a firewall controller, the computer program product having a medium with a computer program embodied thereon, the computer program product comprising:
A computer program product in a firewall, said firewall responsive to a media gateway controller, the computer program product having a medium with a computer program embodied thereon, the computer program product comprising:
A computer system for remotely controlling a firewall from a firewall controller comprising:
Dependencies are inferred from the claim text.