Take a look at your router manual, it will have a configuration page that will allow you to open ports (are you trying to set it up for some gaming purpose?).
And a default gateway of 0.0.0.0 indicates a problem, as it is not a valid gateway on a home router. To connect to your router you will need to determine its actual gateway address, which again will be in the manual with default values along with default user and password unless you have changed them.