Guys,
Thank you for all replies. It appears I had the whole idea of port forwarding wrong
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. I thought that the router has ports to forward set by default. It doesn't. The application, which tries to connect to the internet, installed on a computer located behind double NAT does. Therefore I should only forward ports set in the application by manually adding them to my both routers' port forwarding tables. So when I tried to forward i.e. torrent client ports in my double NAT environment I did as follows:
- Set port in my torrent client (or any other app) to desired port number (between 1024 and 65535). So let it be 5050.
- Set static IP for DSR-250 in Hub 3 settings.
- Forward port 5050 for DSR-250's static IP in Hub 3 settings.
- Set static IP for computer connected to DSR-250 where torrent app is installed.
- Forward port 5050 for static computer's IP in DSR's settings.
And that's pretty much it. Worked perfectly!
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Best regards, Dan.