WAN+LAN: Subsequently block unwanted Computers

[gruutch1]

Hello,

my next project is to block subsequently unwanted Computers.
The clients in the LAN-Area get the DHCP-IP from my OpnSense Firewall.
At certain intervals I would like to look in the DHCP Logfile or DHCP list, which unwanted Client got an DHCP-IP.
If I see for example an Android-Smartphone, then I want to block subsequently.

Is this realisable ?

Could you please tell me where I have to make the necessary adjustments?

[wurmloch]

Hi,

I would assign a static IP with the DHCP server and then write a firewall rule to block outgoing traffic for this (range of) IPs?

Uwe