ATEN CS1708i User Manual page 143

Filter
 IP and MAC Filtering
IP and MAC Filters control access to the CS1708i / CS1716i 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 9. Device Management
127