IEEE 802.1X Device Roles
The devices in the network have the following specific roles with IEEE 802.1X authentication:
Authenticator - An entity that facilitates authentication of other entities attached to the same LAN.
Supplicant - An entity at one end of a point-to-point LAN segment that seeks to be authenticated by an Authenticator attached to the other end of that link.
Authentication Server - An entity that provides an authentication service to an Authenticator. Based on the credentials provided by the Supplicant, the server determines whether the Supplicant is authorized to access the services provided by the system in which the Authenticator resides.