i need to force a ip address to point to a different one on my windows box.

more specifically, i need x.x.x.x:z to connect to 127.0.0.1:z
127.0.0.1:z is port forwarded to x.x.x.x:z though ssh

im doing this becuase i am inside a VERY restricted firewall, the university i go to has almost all ports blocked. i have a ssh sever set up at my parents house and i dont need help with seting up ssh portwarding. i just can not figure out how to make all traffic headed towards a certain ip go through my tunnel