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Network security question: whar is e EAPOL

Network security question:
whar is e
EAPOL

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EAPoL – Extensible Authentication Protocol over LAN

Extensible Authentication Protocol (EAP) over LAN (EAPoL) is a network port authentication protocol used in IEEE 802.1X (Port Based Network Access Control) developed to give a generic network sign-on to access network resources.

EAPoL, similar to EAP, is a simple encapsulation that can run over any LAN. The same three main components are defined in EAP and EAPoL to accomplish the authentication conversation. The figure shows how these LAN components are connected in a wired environment.

  1. Supplicant (Port Authentication Entity (PAE) seeking access to network resources)
  2. Authenticator (PAE that controls network access)
  3. Authentication Server (a RADIUS/AAA server)
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