When I said 'forwarded properly' I meant that the user has port forwarding enabled on their router for the port I wish to use. I have a multiplayer game which has the option to act as a server. Hence, port forwarding is needed and we would like to have a simple feature that tries to verify that the port is, in fact, forwarded.

T Series,M Series,MX Series. Benefits of Port Forwarding Before you redirect traffic from one port to another port, or another address, you need to know three things: which port the packets arrive at, what protocol is used, and where you want to redirect them. And the goal was to display (part of ssh -v output) : Local connections to LOCALHOST:5901 forwarded to remote address 127.0.0.1:5900 Local forwarding listening on ::1 port 5901. It seem impossible to display ONLY this 2 lines client side. – slc66 Jan 27 '12 at 13:16 Then do a port check on just that port. If you had successfully forwarded the range of ports you listed you would have been infected by port Trojans and you would have been hacked/exploited. The whole idea behind port forwarding is to open pin holes in your firewall.

The easiest way to check if port forwarding is working is to use an online port forwarding tester, such as yougetsignal.com. It will show your IP address and which of the most commonly used ports are open. You can manually test any other port that’s not on the list. Port forwarding testers can also identify what services are running on these

T Series,M Series,MX Series. Benefits of Port Forwarding

Testing the port status for the computer inside a subnet is only possible with port forwarding. Also, please note that in case you are testing open port for your local IP address i.e. if your Ip is similar to 192.168.1.xxx you are trying to check open port on internal IP and it is not going to work.

When I said 'forwarded properly' I meant that the user has port forwarding enabled on their router for the port I wish to use. I have a multiplayer game which has the option to act as a server. Hence, port forwarding is needed and we would like to have a simple feature that tries to verify that the port is, in fact, forwarded. T Series,M Series,MX Series. Benefits of Port Forwarding Before you redirect traffic from one port to another port, or another address, you need to know three things: which port the packets arrive at, what protocol is used, and where you want to redirect them. And the goal was to display (part of ssh -v output) : Local connections to LOCALHOST:5901 forwarded to remote address 127.0.0.1:5900 Local forwarding listening on ::1 port 5901. It seem impossible to display ONLY this 2 lines client side. – slc66 Jan 27 '12 at 13:16