I’m trying to port forward my Xbox and PS3 to get open NAT. Can i use the same static IP for both consoles and still get Open NAT? Both consoles share one Ethernet cable and are never on at the same time.
No reason you can’t use the same IP on two physical devices as long as they are never on at the same time.
You could do that as stated above. But why not just open the ports needed by the systems to function on your router? That way you could have both systems on at the same time. If you give them both the same IP and do an open NAT you could run into some headaches.