Chapter 21: Security: 802.1X Authentication; Overview - Cisco SX350 Series Administration Manual

Security: 802.1X Authentication

Overview

Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x
This section describes 802.1X authentication.
It covers the following topics:
• Overview
• Properties
• Port Authentication
• Host and Session Authentication
• Authenticated Hosts
• Locked Clients
• Web Authentication Customization
802.1x authentication restricts unauthorized clients from connecting to a LAN through
publicity-accessible ports. 802.1x authentication is a client-server model. In this model,
network devices have the following specific roles.
• Client or supplicant
• Authenticator
• Authentication server
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