Edimax Technology EW-7733UnD - Manual (Page 45)

Access control list will appear:
First you have to select access control policy:
Disable: No access controlling
Allow All: Only allow clients in the list to establish connection (white list).
Reject All: Rejects all clients in the list to establish connection (black list).
Then you have to input the 12-
character MAC address in ‘MAC Address’ field.
You may find the MAC address of a certain network card on itself (something
like a label). Please note that you don’t have to input : (colon) or - (dash)
character between
every 2 MAC address characters. Click ‘Add’ to add this
MAC address in the list.
To delete a MAC address in the list, select it and click ‘Delete’ button; to delete
all entries, click ‘Remove All’ button.
Click ‘Apply’ button to save changes.