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Question #29: Is there an easy way to test whether router port forwarding is working correctly?
Asked by Jesse (10.0.0.x) on July 30 2022, 8:44 PM

Response: Yes, set up the port so that it forwards to your computer LAN IP address. Run the program "netcat" with arguments "-l [PC port]" so it listens on that port. (Netcat can be downloaded on Windows using Cygwin). Then run another instance of netcat and connect to the Internet IP address: "nc [your WAN IP] [your WAN port]". If port forwarding is working, you can type text into the client and see it on server.


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