ATEN KN1108VA User Manual page 185

Filter
IP and MAC Filtering
IP and MAC Filters control access to the KVM over IP switch based on
the IP and/or MAC addresses of the client computers attempting to
connect. A maximum of 100 IP filters and 100 MAC filters are allowed. If
any filters have been configured, they appear in the IP Filter and/or MAC
Filter list boxes.
To enable IP and/or MAC filtering, Click to put a check mark in the IP
Filter Enable and/or MAC Filter Enable checkbox.
If the include button is checked, all the addresses within the filter range
are allowed access; all other addresses are denied access.
If the exclude button is checked, all the addresses within the filter
range are denied access; all other addresses are allowed access.
Chapter 8. Device Management
168