摘要 |
A method controls a network, wherein the networks offer services to registered users. The method includes the steps of receiving a service request from network device of a user, checking whether the user is registered or not, and if the user is not registered, generating a response message including a warn information and sending the response message to the network device of the user. The method can be performed on a corresponding network device. In this way, a user is informed that he has to register before he can obtain any services from the network.
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