Wireless MAC filter is a security option that allows the user to block or allow certain MAC address to and from connecting to the Access Point wireless.
Mac Filter
Select the appropriate SSID from the drop-down list, and click the radio
buttons under MAC Restrict Mode.
When choosing Allow, all users will be blocked and only the allowing MAC
Addresses will have access to the wireless network.
When choosing Block, all users will be allowed and only the blocked MAC
Addresses will not have access to the wireless network.
Click the Add button to add a new MAC address for the MAC filter.