Allow download/upload for only one connection

[sd]

Hi!

I'm sorry if it's a repeated question. But I can't find the answer.

Does anybody know how to allow download/upload for only one connection?

For example, I have two main connections on my laptop:

1) a WiFi connection to the ADSL

2) a Bluetooth connection to the GPRS

I want to make uTorrent works only with my WiFi connection and never works with my Bluetooth connection (because it's very costly).

I've tried to setup net.bind_ip and net.outgoing_ip to the IP from my WiFi connection but this doesn't work. The download/upload still going over Bluetooth (with different IP).

I use version 1.6 build 474.