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Command Mode
Interface Configuration Mode（interface ethernet / interface range ethernet）
Example
Configure the Control Type for port 5 as port-based:
TP-LINK(config)# interface ethernet 5
TP-LINK(config-if)# dot1x port-method port-based
radius authentication primary-ip
Description
The radius authentication primary-ip command is used to configure the IP
address of the authentication server. Authentication server provides the
authentication service for
the switch via the stored client information, such as
the user name, password, etc, with the purpose to control the authentication and
accounting status of the clients. The RADIUS（Remote Authentication Dial-In
User Service）server is used as the Authentication server generally.
Syntax
radius authentication primary-ip ip-addr
Parameter
ip-addr —— The IP address of the authentication server.
Command Mode
Global Configuration Mode
Example
Configure the IP of the authentication server as 10.20.1.100:
TP-LINK(config)# radius authentication primary-ip 10.20.1.100
radius authentication secondary-ip
Description
The radius authentication secondary-ip command is used to configure the IP
address of the alternate authentication server. To restore to the default
configuration, please use no radius authentication secondary-ip command.