Yeah, I occasionally connect a linux laptop on both networks (ipforwarding OFF) with an http port open that exposes my fileserver mounted on the laptop via NFS.

Yeah, I occasionally connect a linux laptop on both networks (ipforwarding OFF) with an http port open that exposes my fileserver mounted on the laptop via NFS. If that's too hard, I just pull the hard drives out and connect to my workstation with USB, also good for imaging the machines since they crash so dang often.