Service charging method, service charging system, network access server and protocol resolving device

摘要

A service charging method, including: receiving a service packet, performing a protocol resolution on the service packet and obtaining charging information when determining that the protocol resolution needs to be performed on the service packet; and performing a service charging according to the charging information and a preset charging policy. The invention further provides a service charging system, a network access server and a protocol resolving device. Thus, it is easier and more convenient for a user to use a service, and no complex traffic back-patching solution needs to be implemented.