Port Forwarding for Minecraft Explained
Port forwarding is what lets friends outside your home join a Minecraft server running on your PC. It tells your router to send traffic on this port to your computer. Here's what that means in plain English — and how to actually do it.
By MC Monitor · 1 min read
Setup & Self-HostingWhat is a port, and why 25565?
Your router has one public IP, but many devices behind it. A “port” is a numbered channel that routes incoming traffic to the right device and program. Minecraft's default port is 25565 — so when someone connects to your-ip:25565, the router knows to hand it to your Minecraft server.
When you actually need it
Only self-hosted servers need port forwarding. If you join a server from our server list, the host already did this for you. You only forward ports when you're the one running the server from home.
The basic steps
- Find your computer's local IP (e.g.
192.168.1.20) and give it a static lease in your router. - Log into your router (usually
192.168.1.1) and open the Port Forwarding section. - Create a rule: external + internal port
25565, protocol TCP/UDP, pointing to your PC's local IP. - Save, restart the router if prompted, and have a friend test the connection.
The dynamic-IP problem
Most home internet gives you an IP that changes periodically — so your friends' saved address stops working. The fix is Dynamic DNS: a service that keeps a fixed hostname pointed at your current IP. Read our Dynamic DNS guide for the simple setup.