I'm new to Networking stuff but I've been programming VB for awhile.. basically here's what I got.

I am working on a simple client/server program. The Server form stands up and waits for the Client to call it's IP address and it's port... So I start my client program up... it uses localhost as it's IP address or the 127.0.0.1 IP Address and connects to the Server... my question is....

How do I figure out what my IP address is and what the IP Address is for the user connecting to me. Because that 127.0.0.1 is also in the book I'm referring to, meaning that's standing for all localhost connections. But I want to use a different computer to connect to my IP address, only I don't know my IP address... is there property or method that'll give me my IP address so I can install the Client software on another computer, enter in my REAL IP address and then connect the two forms?