I want to configure a firewall between 2 VMs Kali (attacker) and vulnerable website (bwapp or dvwa through pentestLab docker image) and third VM is the firewall (OPNSense).

So i want help with configuring OPNSense

what should i assign my interfaces

how do i configure it? what should i enter for LAN and WAN?

And how do i setup the OPNSense GUI after this?

Enter an option: 7 Enter a host name or IP address: google.com ping: cannot resolve google.com: Host name lookup failure Press ENTER to continue. * OPNsense. localdomain: 0PNsense 20.7 (amd64/0penSSL) *** B) Logout 7) Ping host 1) Assign interfaces 8) Shell 2) Set interface IP address 9) pfTop 3) Reset the root password 10) Firewall log 4) Reset to factory defaults 11) Reload all services 5) Power off system 12) Update from console 6) Reboot system 13) Restore a backup Enter an option