Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 92

Figure 4. EAP Frames Encapsulated in Ethernet and RADUIS The authentication process involves three devices: • The device attempting to access the network is the supplicant. The supplicant is not allowed to communicate on the network until the authenticator authorizes the port. It can only communicate with the authenticator in response to 802.1X requests. • The device with which the supplicant communicates is the authenticator. The authenticator is the gate keeper of the network. It translates and forwards requests and responses between the authentication server and the supplicant. The authenticator also changes the status of the port based on the results of the authentication process. The Dell EMC Networking switch is the authenticator. • The authentication-server selects the authentication method, verifies the information the supplicant provides, and grants it network access privileges. Ports can be in one of two states: • Ports are in an unauthorized state by default. In this state, non-802.1X traffic cannot be forwarded in or out of the port. • The authenticator changes the port state to authorized if the server can authenticate the supplicant. In this state, network traffic can be forwarded normally. NOTE: The Dell EMC Networking switches place 802.1X-enabled ports in the unauthorized state by default. Topics: • Port-Authentication Process • Configuring 802.1X • Important Points to Remember • Enabling 802.1X • Configuring MAC addresses for a do1x Profile • Configuring Request Identity Re-Transmissions • Forcibly Authorizing or Unauthorizing a Port • Re-Authenticating a Port • Configuring Timeouts • Configuring Dynamic VLAN Assignment with Port Authentication • Guest and Authentication-Fail VLANs • Configuring dot1x Profile 92 802.1X