TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 Configuration Guide - Page 417
Authentication Server
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Configuring Network Security Network Security authentication server; also, the authenticator obtains responses from the authentication server and send them to the client. The authenticator allows authenticated clients to access the LAN through the connected ports but denies the unauthenticated clients.. Authentication Server The authentication server is usually the host running the RADIUS server program. It stores information of clients, confirms whether a client is legal and informs the authenticator whether a client is authenticated. AAA AAA stands for authentication, authorization and accounting. On TP-Link switches, this feature is mainly used to authenticate the users trying to log in to the switch or get administrative privileges. The administrator can create guest accounts and an Enable password for other users. The guests do not have administrative privileges without the Enable password provided. AAA provides a safe and efficient authentication method. The authentication can be processed locally on the switch or centrally on the RADIUS/TACACS+ server(s). As the following figure shows, the network administrator can centrally configure the management accounts of the switches on the RADIUS server and use this server to authenticate the users trying to access the switch or get administrative privileges. Figure 1-3 Network Topology of AAA Users Switches RADIUS Server Configuration Guide 396
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