Not with the router there isn't. You have to configure your router on it's configuration page. In IE or Netscape, type
http://192.168.1.1 as the address, and press enter. By default, the Username is blank, and the password is "admin" without the quotes:
[code:9641f]USERNAME:
PASSWORD: admin[/code:9641f]
Now you want to get to the Fowarding tab. This is usually under Advanced. THis is where you put these port numbers in.