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CWNP Certified Wireless Network Administrator CWNA-109 · Domain 5: WLAN network security

802.1X roles: supplicant, authenticator and authentication server (RADIUS)

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Last reviewed September 25, 2026 · Leer en español

IEEE 802.1X is a port-based network access control standard. Originally designed for wired switch ports, it is the foundation of enterprise Wi-Fi security. The idea is simple: a device is not allowed to send normal traffic through a port until it has proved who it is. On Wi-Fi, the port is the logical connection between a client and an AP after association.

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