D-Link DIR-808L User Manual page 52

Section 4 - Security
8. Next to RADIUS Server Port, enter the port you are using with
your RADIUS server. 1812 is the default port.
9. Next to RADIUS Server Shared Secret, enter the security key.
10. If the MAC Address Authentication box is checked, then the
user will need to connect from the same computer whenever
logging into the wireless network.
11. Click Advanced to enter settings for a secondary RADIUS Server.
12. Click Save Settings to save your settings.
D-Link DIR-808L User Manual 47