| 摘要 |
An access control apparatus and method limits, to a finite time length, connection of a user terminal to a public network. The user terminal is disconnected from the public network when the use time of the logical address assigned to the user terminal reaches the time limit set for the logical address. The apparatus and method utilizes IDs issued to multiple users and IDs for multiple user terminals, and enables limiting connection to a public network from a user terminal that is connected by a leased circuit.
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