| 摘要 |
The present invention relates to the field of communications. Provided is a method for processing a disconnection of a user equipment, allows for the prevention of excessive billing against a user. The method comprises: determining that the user equipment is disconnected; and transmitting disconnection information of the user equipment to a firewall, where the disconnection information carries session resource indication information of the user equipment, thus allowing the firewall to search for and to delete a session resource corresponding to the user equipment on the basis of the session resource indication information in the disconnection information. Also provided in the present invention are a network device, the firewall, and a network system.
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