Turn on the "DMZ" setting and assign it to the internal IP that NBA Live gives you in the "IP Direct Connect". (ie. 192.168.0.125)
You do this by going into your router settings. Type in "ipconfig" in command prompt then type in the gateway it shows you (most likely 192.168.0.1) in your browser and press enter. You'll need to enter the user name/password for your router. If you haven't changed anything look in your router manual for the correct user/password.
After you've turned on DMZ for your computer you can now create games on EASO.
If you want to play IP Direct Connect give the other person you "real" IP address. To find out your real IP address you can go here:
http://www.whatismyip.com