I worked on the IP masquerade thing from 8:00 a.m. until 2:30 p.m. (skipping lunch), but I made it work! And it’s wonderful. So now I have my Dell Latitude LS connected to the web through my Linux box, lithe.uark.edu. I’m still tweaking things, but, so far, it’s completely functional. And I’m glad to have both up and running again. Now should write up a little guide to setting it up to help other people out there (and to help me in six months when I’ve forgotten it).