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Method for implementing legal listening

A technology of legal monitoring and monitoring equipment, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of monitoring business data loss and failure to monitor business data, and achieve the effect of avoiding loss

Inactive Publication Date: 2007-10-03
刘小清
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Problems solved by technology

[0014] However, in the prior art, since the home agent sends a roaming notification message to the interception controller to trigger the interception device in the roaming network to perform the interception configuration process, and the home agent sends a registration success message to the mobile node to trigger the implementation of triangular routing or The process of route optimization is a parallel process that does not affect each other. Therefore, if the route adjustment process of triangular routing or route optimization is completed before the process of monitoring configuration, then, before the process of monitoring configuration is completed, the monitoring device of the roaming network will not update the corresponding The service data originating from the mobile node is sent to the monitoring controller, resulting in the loss of monitoring service data, making it impossible for the law enforcement agency to monitor all the service data

Method used

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Embodiment Construction

[0046]When the mobile node roams, in order to monitor the service information transmitted by the mobile node through triangular routing or route optimization, the network to which the mobile node roams must be monitored and configured to obtain the service information of the mobile node. However, in the prior art, when the mobile node roams to a network, the monitoring configuration is performed on the roamed network. In this way, the monitoring configuration process is likely to be completed after the triangular routing process or the route optimization process, thereby lead to loss of business information. It can be seen that, in order to avoid the loss of service information, it is necessary to make the listening configuration process of the mobile node roaming into the network prior to the triangular routing process or route optimization process of the mobile node in the roaming network.

[0047] Therefore, the present invention proposes a method for realizing legal interc...

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Abstract

A method for carrying out legal monitor includes confirming peripheral network of network existed by mobile node currently by monitor controller according to topology-adjacent information of each mobile IP network, carrying out monitor configuration on monitor device of confirmed peripheral network by monitor controller and sending service information corresponding to mobile node to monitor controller by monitor device of peripheral network according to finalized monitor configuration when mobile node in moved onto any one of said peripheral networks.

Description

technical field [0001] The invention relates to interception technology, in particular to a method for realizing legal interception in a mobile IP network. Background technique [0002] With the development of network technology and the application of a large number of mobile terminals, such as notebook computers, personal digital assistants (PDA), mobile phones, and vehicle-mounted equipment, mobile IP technology has emerged. The basic principle of mobile IP technology is to make the mobile node always use the initial IP address for IP communication during the mobile process, so as to ensure that the upper-layer applications carried by the IP network layer remain uninterrupted and continuous during the movement. [0003] Figure 1 is a flow chart of service implementation when a mobile terminal roams in a mobile IP network. Referring to Figure 1, in a mobile IP network, when a mobile terminal roams to other places, the basic process of implementing mobile IP services includ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06
Inventor 赵烨苗福友
Owner 刘小清
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