APN accessing restricting method and GGSN
An access restriction and user terminal technology, applied in the field of communication, can solve the problems of poor security and accuracy, and achieve the effect of improving the security level and refining the restriction accuracy.
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[0051] In view of the problems of poor security and accuracy in the existing APN access restriction methods, the APN access restriction method provided by the embodiment of the present invention, the flow of the method is as follows figure 2 As shown, the execution subject is GGSN, and the specific steps are as follows:
[0052] S20: According to the received PDP connection establishment request message sent by the SGSN, obtain the location information of the user terminal, the identification information of the user terminal and the information of the APN that the user terminal requests to access.
[0053] The SGSN can send a PDP connection establishment request message in two cases. In one case, after receiving the APN access request of the user terminal, it needs to first query the DNS according to the APN to obtain the address of the GGSN, and then send a PDP connection establishment request message; Another situation is that the user terminal is currently accessing the AP...
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