| 摘要 |
Access to particular computer network switch ports is controlled such that a central server switches on (enables)/switches off (disables) particular user network switch ports in a Local Area Network (LAN) to control access to the network. The user network switch ports are controlled dynamically according to a user's presence or proximity, for example, presence in a particular room or building. A credentials reader is used to determine a user's presence such as a RF proximity or magnetic stripe access card reader, or alternatively a biometric reader may be employed. An identification of the user and the reader is sent to the central server when a user presents credentials to the reader, the central server looks up the user's associated network switch port in a database and, if an assigned port if found for that user, constructs and sends a configuration script to that port to turn the port on (or off). The configuration script may be sent using a telnet session over TCP port 23 or by using the SNMP protocol.
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