SMC Networks SMCWBR14-G2 - Manual (Page 79)

S
ECURITY
4-33
MAC Filter
Use this page to block access to your network using MAC addresses.
The Barricade can also limit the access of hosts within the local area
network (LAN). The MAC Filtering Table allows the Barricade to enter up
to 32 MAC addresses that are allowed access to the WAN port. All other
devices will be denied access. By default, this feature is disabled.
Click Save Settings to proceed, or Cancel to change your settings.