What is dot1x?

IEEE 802.1X is an IEEE Standard for port-based Network Access Control (PNAC). It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN. It is commonly used to secure wired and wireless networks by requiring users or devices to authenticate before gaining network access. 802.1X involves three main components: a supplicant (client device), an authenticator (network switch or access point), and an authentication server (typically RADIUS).