Today im going to show you how to make a minecraft server without hamachi
First, go to Bukkit Forums and download it.
Then, read this: https://wiki.bukkit.org/Setting_up_a_server
Now comes the real thing
Go to CMD (go to Run and type Cmd)
Then type in CMD: Ipconfig /all
You will see all kind of things, but the thing you must have is your ipv4-Address.
Go to your minecraft server folder, then go to server, and change your server ip with your ip4-address.
Then run Run.bat and your off