Hi,

I have a WAN connection with several public IPs (28 subnet). I have configured the WAN2 like:

IP: 82.216.XXX.242

SM: 255.255.255.240
GW: 82.216.XXX.141

I then added all IPs (like 82.216.XXX.243, 82.216.XXX.244, 82.216.XXX.245, etc.) as WAN IP alias adresses.

Then, under "Transmission" "NAT" I added some port forwardings. I have port 10000 to be forwarded on the main IP (82.216.XXX.242). Hence, I left the "WAN IP" selection empty. 

When trying to add another port forwarding for the same port, but selecting another WAN IP (82.216.XXX.243) I get the error "The source port already exists for the chosen interface(s). Please change the source port.".

I even tried to set another WAN IP for my first port forwarding. Simply, so that a WAN IP is selected and that this field is not empty. Same result.

Is this a bug? Anything I did wrong?

BR

C