Restrict the MAC address to access the Internet

[naserzadeh]

How can I get access to the Internet through the MAC address?
In this way, an unspecified Mac address does not have Internet access!!

[jjanzz]

Did you perhaps tick the 'Deny unknown clients' box on the DHCP server page?

[naserzadeh]

I want only those who have their mac address to be authenticated to use the network

[MAXsense]

The answer was already given implicitly:
Services -> DHCPv4/v6-> choose your network -> check " Deny unknown clients" then read the hint to this option. At the of the page you enter your allowed clients.

Greetings