Connection methods

Hello,
I have a db2 server on a Win7 machine and a db2 client on a Win7 machine.
As i understand i can connect from my client to the server either by TCP/IP or by SNA.
Are there any other ways of connecting to the server(using the DRDA protocol)?
And also, how does the SNA method connection works? how do i connect to the server via this method.
Big Thanks for all the helpers.

Shai