I thought this would be easy, but I can't find what I'm looking for. I have an iMac and an MBA - both running 10.8. I use the iMac to connect to the VPN of my company using Cisco Anyconnect. They have very tight security settings, so everything that's not on 192.168.0-2.x has to go through the VPN - and therefore through my company's network. So, when I'm connected to work, any email, web, etc Internet traffic has to go from the iMac, to my company, and then to the Internet. Besides security and privacy issues, this makes things slow as hell.
Without VPN, I can get about 20-30Mbps down. When it's on, it drops to 3Mbps! So, I thought I would use my MBA, or an old WinXP laptop I have sitting around and have it run as a proxy server.
If you ever use your Mac on a large network such as at work, at a university or at a library, you will probably need to set up a proxy. Networks use proxies to control and limit access from unauthorized users to unauthorized content. The app can only connect using a network proxy that does not require extra authentication. If you configure or modify proxy server settings for Windows (Internet Options > LAN Settings), restart the AEM Desktop App for the changes to take effect.
Since they're on my local 192.168.x network, I could set my iMac to use this for some apps and bypass the VPN. Anyway, every program and info website I've found is for setting up a Mac to connect to a proxy server on the Internet to secure and/or hide my access.
That's great, but it's not what I'm looking for right now. How can I make my MBA or WinXP box be a proxy server for the iMac?