how do you bridge internet connections at 2 different houses?

[bostonianinmo]

Why would you possibly want to do that?? What exactly are you trying to do?

If you're trying to aggregate your bandwidth, don't waste your time. The cost of the hardware to do that will far exceed the cost of getting a faster connection from both of your ISPs. That's enterprise-class stuff and the hardware will run into thou$and$.

If you're just trying to access each other's networks across the internet, set up a VPN between your homes. You'll either need a VPN firewall such as a Cisco PIX 501 at each end or look into some open source solutions such as IPCop http://www.ipcop.org

If you go the IPCop route (it's what I use) you'll need a spare PC on each end to install IPCop on to.

Either way, your internal IP scheme must be different on each end, and you must have a static public IP from your ISPs -- or at least a dynamic IP that rarely changes.