@terziyski Unfortunatly, the GUI version of the example you provide is not the same as the GUI version of my router. My Firmware Version is OpenWrt Chaos Calmer 15.05.1 / LuCI 15.05-149-g0d8bbd2...

@terziyski Alternatively, is there a solution to acces to an application running on PC2 on a given port from PC1 ? It's ok if this application is accessible drom PC3. I tied to use the port...

@terziyski I can't do that, PC1 and PC2 are not on the same floor

Hello, Here is the topology of my network: - SWITCH_1 via ethernet is connected to - the internet router - a computer (PC1) - the router TL-WR841N - TL-WR841N via ethernet is connected to: - a...