| 摘要 |
A method, system, and device for filtering packets are disclosed. The method includes: by a deep packet inspection (DPI) proxy server configured at the access-network user side, identifying the service type and/or contents of a received packet, and performing DPI filtering on the packet by using a preset DPI filtering policy according to the identified service type and/or contents. In the technical solution of the present invention, DPI proxy servers are configured at the access-network user side on a distributed basis; each DPI proxy server receives packets only from a user equipment (UE) on a customer premises network (CPN), where the UE corresponds to the DPI proxy server. Compared with the DPI server configured at the edge between the core network and the access network in the prior art, the DPI proxy server provided in embodiments of the present invention processes fewer packets, thus performing real-time DPI on the packets.
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