How to port forward external IP to websocket server hosted locally?

user_10464643 0
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I have created a local websocket server using the ktor framework, which is available locally in the below IP.

[main] INFO  Application - Responding at http://192.168.1.10:8080

And I'm able to access it locally from postman by hitting

ws://192.168.1.10:8080/chat

I would like to connect to this socket from the internet, But when I setup port forwarding (using NAT virtual server configuration), this doesn't seem to work. I get timed out error.

I tried this because, it is working fine for the http server (express app) I created in another port. From the below NAT virtual server configuration, I was able to do port forwarding and access the webservice from the internet.

enter image description here

I'm quite new to socket programming and networking. Kindly advice.

ws ktor networking websocket
1 Answers

You can't have a single External Port mapped to two different Server ports. Each Server needs a distinct External Port mapped to it. Right now, you have External Port 80 mapped to both 192.168.1.10:3000 and 192.168.1.10:8080.

Once you fix that issue to use a separate External Port for each Server, then http://<externalIP>:<externalPort1> and ws://<externalIP>:<externalPort2> should work properly to reach the HTTP and WebSocket servers, respectively, from the outside world.

user_658630
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