The address filter allows restricting the access to the WLAN interface to selected computers. The filter checks the list using the computer's MAC address. The MAC address is a unique and unmodifyable hardware address.
This configures the list of addresses to be used. If "Disabled" is selected, no filtering takes place at all. "Accepted Addresses" leads to allowing access only to computers from the "Accepted Addresses" list. Finally, "Denied Addresses" allows to block the computers from the "Denied Addresses" list while all others are accepted. Only one out of the two lists can be active at a time.