When you’d like to add new rule to the firewall settings, it must done carefully, because you
can disable or tilt some ports out of the communication so easy (which ports can be used by the
router by default or necessary for some network services or could required by some other running
tasks). E.g. Port nr. 67 is used by DHCP service, as Port nr. 80 for web service, DNS for port nr. 53,
OpenVPN at port nr. 1194 and the RS485 also uses a dedicated port).
You can add a new port (which you have configured for the relevant service) to the firewall rules
by the
button. Configure the port and save the settings. Don’t forget to
the old,
not relevant rule for the service.
For modifying the Firewall settings, choose
button.
