5G Router Port Forwarding
anonthemaus
Enthusiast - Level 1

I'm looking to host some Minecraft on a unix system (Debian; MineOS) for some friends. My friends can connect with the direct URL or DNS, but I cannot do the same with the public URL.

I suspect the severely-limited-settings router with the restrictive firewall options is the culprit after days of testing. I would like to be wrong.

iptables is configured to allow connection:

  in /etc/iptables-rules:
  -A INPUT -p tcp -m tcp --dport 25565 -j ACCEPT

  From iptables --list
  "...
  ACCEPT tcp -- anywhere anywhere tcp dpt:25565
  ..."

The port is visible from https://canyouseeme.org/ ("Success: I can see your service on xx.xxx.xxx.xxx on port (25565)
Your ISP is not blocking port 25565")
I am able to connect locally over LAN. But for testing purposes, I want to connect via public IP address.

anonthemaus_0-1638760341253.png

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The IP is static:

anonthemaus_2-1638760519383.png

 

 

The ports are open

anonthemaus_3-1638760729286.png


This is not an issue I have had with Verizon FiOS service & routers in the past. Input on this would be appreciated.

 

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