Tripp Lite NGI-M08C4POE8-2 Owner's Manual page 258

<IP> port PORTID
configure dot1x radius secondary-server-ip
<IP> port PORTID key KEY
configure no dot1x radius secondary-server-ip
configure dot1x username <USERNAME>
<PASSWORD>
configure no dot1x username <STRING>
7.3.1.2 Web Configurations
Parameter Description
Global Settings
Select Enable to permit 802.1x authentication on the Switch.
State Note: You must first enable 802.1x authentication on the Switch before
configuring it on each port.
Select whether to use Local or RADIUS as the authentication method.
The Local method of authentication uses the "guest" and "user" user
groups of the user account database on the Switch itself to authenticate.
Authentication
However, only a certain number of accounts can exist at one time.
Method
RADIUS is a security protocol used to authenticate users by means of
an external server instead of an internal device user database that is
limited to the memory capacity of the device. In essence, RADIUS
radius server.
This command configures the secondary
radius server.
This command removes the secondary
radius server.
This command configures the user account
for local authentication.
This command deletes the user account for
local authentication.
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