Can I create a second node behind the same public IP address with a new Auth Token?

Hey guys. Im running a node now since 2 years. I have 4Tb running. Its running nice and smooth. At the moment im making between 10 and 13 Dollars a Month. Its ok for me becaus i see the storj token strong in the future!

Now i wanna do a upgrade. I have optical fiber with 250/250mbit and a fixed ip.

I have bought a used qnap NAS for cheap and i will put in there 16tb iron wolf.

can i just start a node on the same ip adress? or what should i do?