I have created a minecraft server before using port forwarding. I could never connect locally, but that wasn't a huge issue. I just got a new router AND computer, but I can't seem to successfully open a fully working server. I can open the server fine, and I can connect as localhost if I so choose, but locally it is impossible for people to join. Externally people can't seem to join either. I have opened a port and everything, but it doesn't seem to work. I have looked up the ability to add "? Override=true" to the end of the other computer's ip addresses, but that doesn't seem to work. It only seems to work on the online, website, browser type servers. Any suggestions?
How to port forward a minecraft server locally and externally?
Guest
1) Set a static IP or DHCP reservation for the server's NIC.
2) Create (a) port forward rule(s) in the router to the server's static IP.
3) Create a firewall exception on the server for the port(s).
4) WAN connections will be able to connect via your WAN IP or a FQDN(that resolves to your WAN IP).
5) LAN clients connect using the server's LAN IP (recommended);
or, if you really want, WAN IP or FQDN(that resolves to your WAN IP) if your router supports NAT loopback.
If you want your LAN clients to connect using a hostname or FQDN(that resolves to the server's LAN IP) you will need to add an entry in each client's hosts file or setup a internal DNS server.
Amith