How do you open your nat on a d-link DSL-G604T?

Open a internet browser. Type 10.1.1.1 in to the search bar then a box will appear saying Username and PassWord. Usually it is admin for the username and passWord. When you log into your router go to advance settings click DMZ and type the IP into the box and enable DMZ. Now save and reboot and your nat type will be open. :)