IEEE 802.1x is a port-based network access protocol that provides an authentication mechanism for devices that are physically attached to the network.
802.1x authentication can be enabled on LAN ports that are not part of port bonding, internet connections, or port mirroring.
Workflow:
Install and configure a RADIUS Server in your environment.
Configure the RADIUS Server object on the appliance.
Activate 802.1x authentication on a separate LAN interface or a tag-based VLAN interface defined on one of the LAN physical ports.
If 802.1x is turned on for a tag-based VLAN (because 802.1x is port-based), activate it on both the VLAN and the associated port (for example, LAN5 and LAN5.1).
For more information, see Configuring MAC Filtering.