How to use multiple IP address?

I'm using NeoLoad 4.2.3. I do not have Load Generator running on any other box other. The only Load generator I have is the one running the Controller. The server that runs the Controller has nine IPv4 addresses (as listed by ipconfig command). Is there a way I can run such that all nine IP addresses will be used instead of just one address? If so, how do I do that? I read about IP spoofing but it sounds like I have to have Load generator running on other servers.