Method and device for implementation of a firewall application for communication data
First Claim
Patent Images
1. A method for implementing a firewall application for communication data transmitted between terminal devices, comprising:
- disposing a first terminal device and a first interworking device in a first communication network;
disposing a second terminal device and a second interworking device in a second communication network;
initiating a data connection between the first terminal device and the second terminal device;
sending data for authenticating the first terminal device from a first interworking device to a second interworking device with a known address;
authenticating, by the second interworking device, that the first terminal is authorized to communicate with the second communication network; and
in response to the first terminal being authorized;
communicating, by the second interworking device, a further address to a firewall device, the further address is selected from an address of the first terminal device and the address of a first gatekeeper connected to the first terminal device; and
activating the firewall device to allow signaling data to be sent by the first terminal device via the firewall device to the second terminal device.
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Abstract
In one aspect a method for implementation of a firewall application is provided, whereby, in one step of the initiation of a connection from the first to the second terminal, authentication of the first terminal is transmitted and, after successful authentication a selected address is communicated to the firewall device. In another aspect, an arrangement for carrying out the method is provided.
13 Citations
19 Claims
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1. A method for implementing a firewall application for communication data transmitted between terminal devices, comprising:
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disposing a first terminal device and a first interworking device in a first communication network; disposing a second terminal device and a second interworking device in a second communication network; initiating a data connection between the first terminal device and the second terminal device; sending data for authenticating the first terminal device from a first interworking device to a second interworking device with a known address; authenticating, by the second interworking device, that the first terminal is authorized to communicate with the second communication network; and in response to the first terminal being authorized; communicating, by the second interworking device, a further address to a firewall device, the further address is selected from an address of the first terminal device and the address of a first gatekeeper connected to the first terminal device; and activating the firewall device to allow signaling data to be sent by the first terminal device via the firewall device to the second terminal device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A firewall arrangement for communication data transmitted between terminal devices, comprising:
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a firewall device disposed between a first communication network and a second communication network; a first terminal device disposed in the first communication network; a second terminal device disposed in the second communication network; a first interworking device disposed in the first communication network; and a second interworking device with a known address for; performing an authentication on the basis of authentication data transmitted by the first terminal device, wherein the authentication determines if the first terminal is authorized to communicate with the second communication network, and sending, by the second interworking device, a further address of the second terminal device to the firewall device for activating the firewall device to allow signaling data to be sent from the first terminal device to the second terminal device via the firewall device, wherein the sending is in response to the first terminal being authorized to communication with the second communication network. - View Dependent Claims (14)
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15. A method for implementing a firewall application for communication data transmitted between terminal devices, comprising:
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disposing a first terminal device and a first interworking device in a first communication network; disposing a second terminal device and a second interworking device in a second communication network; receiving data by a second interworking device with a known address, the data for determining if the first terminal device is authorized to communicate with the second communication network; activating, by the second interworking device, the firewall device to accept signaling data from the first terminal device, the activation via a firewall control interface and in response to the first terminal being authorized to communicate with the second communication network; receiving signaling data from the first terminal device by the firewall device, the signaling data in the form of a call setup up message; and accepting the signaling data by the firewall in response to the firewall being activated to accept the signaling data by the first terminal device. - View Dependent Claims (16, 17, 18, 19)
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Specification