I was able to have the WAN as a LAN in another interface, but I’m struggling to create the appropiate port forwarding rules as shown in the image. Any support?
It’s not possible to use the router as a switch with different networks. One option is to maintain the factory configurations, disable Network Address Translation (NAT), and deactivate the firewall. These changes can be made through the router’s WebUI under Network → Firewall → General settings:
If your PC is directly connected to the WAN port, you’ll need to configure a static IP address On your PC:
Also, your router must have a static IP as well. You can adjust the configuration by navigating to Network → LAN → LAN interfaces and then selecting the “Edit” button.