Unable to properly open port in firewall

I have a web server running on port 3040. I want to open that port so that any other device on my local network can reach it. Using YAST2 Firewall GUI, I did the following:

  1. Custom Rules
  2. Add
  3. Source Network: (My computer is
  4. Protocol: TCP
  5. Destination Port: 3040
  6. Source Port: 3040

It does not work. I cannot reach it form other devices.

However, if I turn **off **the firewall, then I can reach it.

How do I get this to work?

Wrong place :wink: go to ‘Allowed Services’ hit advanced button (bottom right) and the port numbers here. Don’t forget to delete you ‘custom rule’.