Local Directory
From Edge Threat Management Wiki - Arista
Local Directory stores a list of users that can be used by the applications. It also supports RADIUS for 802.1x authentication from properly configured wireless network access points.
The RADIUS Server can be enabled to allow WiFi users to authenticate as any user configured in Local Directory.
The RADIUS Proxy can be enabled to allow WiFi users to authenticate with credentials that are validated with a configured Active Directory Server.