Okay, the situation is this. At the moment, my network looks like: internet --ethernet--> iMac --AirPort--> iBook So the iMac is acting as a wireless router using internet sharing. Now, I want traffic from my iBook to the internet to be running through a proxy (specifically Tor), but not from the iMac. Installing Tor on the iBook isn't an option because Tor doesn't support the G3 architecture. Is there any way to run only sharing traffic through the proxy? Hopefully local traffic wouldn't be affected, because there are a bunch of tasks between the two systems that need to stay intact. Thanks in advance for any help!