Edimax Technology BR-6424n - Manual (Page 120)

All MAC address entries will be listed in this page:
To delete one or more entries listed here, please check the box of the
mapping entry (under ‘Select’), and click ‘Delete Selected’ button.
If you wish to delete all mapping entries, click ‘Delete All’ button. To
deselect all checked boxes, click ‘Reset’ button.
If you wish to use IP address-based filtering, please use ‘IP Filtering
Table’ in this page:
Please check ‘Enable IP Filtering Table’ box first, and select ‘Deny’ or
‘Allow’ to decide the behavior of IP filtering table (Deny the access of IP
addresses in the list, or allow the access of IP addressees in the list). You
have to click ‘Add PC’ button to add a new IP address to the list: