D-Link AC1200 User Manual page 39

Section 3 - Configuration
MAC Filter Settings - List of blocked customers LAN
Configure the following for blocking Ethernet LAN clients:
MAC Filter (LAN) - Here is a list of clients' MAC addresses on the LAN that
Black List have been denied access to your network.
ID ID number given to each client in the list.
Delete Check this box to delete this client from the list.
MAC Address Specify the MAC address of the computer to be
filtered.
Add New Click the Add New button and manually enter the
MAC address of the client that you want to deny access
to your network.
Click Apply to save your changes.
D-Link DWR-960 User Manual 35