/System/Library/PrivateFrameworks/EAP8021X.framework/Versions/A/Resources/eapolcfg_auth eapolcfg_auth This launch-on-demand daemon allows an authorized process to perform privileged EAPOL configuration operations. The operations include specifying credentials to use when EAPOL is running in system mode.
The binary is a part of EAP8021X private framework.