Amped Wireless APR175P - ProSeries High Power AC1750 Wi-Fi Access Point / Router - Manual (Page 81)

APR175P USER’S GUIDE
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RADIUS: RADIUS Server
RADIUS servers provide an additional layer of security by requiring that
devices be authenticated before gaining access to a network. Authentication
normally includes the use of a user name and password that is verified on a
predefined database also known as the RADIUS server. The Access Point
supports the use of primary and secondary (backup) RADIUS servers for each
frequency: 2.4GHz and 5.0GHz. The Access Point also provides an internal
RADIUS server in the event that an external RADIUS server is not available.
Note: Each Wi-Fi Network (WLAN/SSID) must also have RADIUS servers
selected as Additional Authentication methods in order for the RADIUS
Servers to work. This can be configured here: Wi-Fi Settings > 2.4GHz or 5.0GHz Wi-Fi Settings > Security.
RADIUS Type: Select to use an Internal or external RADIUS server.
RADIUS Server: If an external RADIUS server is selected, enter the IP address of the server here.
Authentication Port: Set the UDP port used by the server to authenticate (Between 1-65535).