Port fowarding problems

I am looking for help since I am not sure what I should do as I believe that I have port forwarded correctly. However, I am unsure as the router I am using is a Korean one and everything is in Korean. I have had a few friends of mine try and connect but they get an error saying : No Further Information. Here is a photo of the portforwarding page.

Best Answer

Assuming that you're using different internal IP address for every setting...
You can not forward same port as other internal IP(s). If a packet (in this case, connection request to your server) arrives to your external address and TCP port 25565, how would your router know which of the three (as in you've set 25565 thrice) internal IP addresses it should be forwarded to?

To solve your problem, you have to set other port number to connect your server, and then you have to edit your server.properties (server-port, specifically) to match the port you forwarded. If the problem still occurs, let me know.

Pictures about "Port fowarding problems"

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Quick Answer about "Port fowarding problems"

Step 1: Make sure the server is accessible from the internal network. ...
Step 2: Check the port forwarding settings in the router.
Step 3: Check the firewall setting. ...
Step 4: Pay attention to the WAN IP address in the status page.

Can port forwarding cause issues?

Is port forwarding safe? Port forwarding inherently gives people outside of your network more access to your computer. Giving access or accessing unsafe ports can be risky, as threat actors and other people with malicious intents can then easily get full control of your device.

What are the disadvantages of port forwarding?

Disadvantages: a. Port forwarding makes server vulnerable to intruder trying to disrupt the services of server. Especially in case of dynamic port forwarding where user may bypass firewall to access blocked websites.

Is port forwarding a good idea?

Port forwarding is an excellent way to preserve public IP addresses. It can protect servers and clients from unwanted access, \u201chide\u201d the services and servers available on a network and limit access to and from a network. Port forwarding is transparent to the end-user and adds an extra layer of security to networks.

How to fix Common Port-forwarding Problems

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Tom Fisk, Tom Fisk, Vito Giaccari, Eylül