Hi Vee,

If your question is related to general VOS routers (not SD-LAN hw switches), I don't think "MAC filtering" is directly available (as it's rather switch feature), however static MAC-to-IP mapping in DHCP is possible using "Static Mapping Profile" in DHCP config. You can find more information at Configure DHCP - Versa Networks This should be supported in all currently available VOS releases (21.2 and 22.1).

If you're looking for some further substitutes for "MAC filtering" on VOS routers, you may also want to leverage "Static ARP" possibility, which is a part of interface configuration (Configure Interfaces - Versa Networks).