We have some medical devices to cannot use 802.1x. So I have using a long PSK (AES). I wanted to know about setting up a role that states if the MAC address starts with xx:xx:xx:xx to access the just the servers associated to the servers listed. I made a netdestinaiton with all the servers the devices required. The part I am having an issue with how do I make policy or rule for this. I noticed under Security -> Authentication -> User Rules, you can set MAC starts with. Is this the only way to do this?