SMC Networks SMCWBR14S-N2 - Manual (Page 80)

C
ONFIGURING THE
B
ARRICADE
4-28
Access Control
Using the Access Control functionality, you can restrict access based on
MAC address. Each PC has a unique identifier known as a Medium Access
Control (MAC) address. With MAC filtering enabled, the computers
whose MAC address you have listed in the filtering table will be able to
connect (or will be denied access) to the Barricade.