IEEE 802.1x

IEEE 802.1x is an IEEE standard for port-based network access control. It is part of the IEEE 802 group of networking protocols. With port-based network access control, the authentication access equipment in the local area network (LAN) performs identity authentication and access control on users or devices connected to its ports. Only the users or devices that can be authenticated are allowed to access the LAN through the ports. Access Control based on 802.1x prevents unauthorized users or devices from accessing the network, which ensures transport network security.