Zen Lunatic wrote: > I recently got cable.... > ...We have a wireless router... > I wanted to build my own router/firewall but the modem is in someone > elses room and they don't want to have a machine sitting in there. > > What I want to do is somehow build a box that is a router/firewall but > connects to the internet using the wireless signal, so I can set up my > own router....
Most of the consumer NAT routers (Linksys, DLink, etc.) offer a feature to fully expose one static ip address. They usually term this "DMZ" since that is common jargon for a partially or completely exposed subnet. See the router's manual. You could turn your laptop into a router, and use PF, if 1) you wanted to use your laptop as a router, and if 2) it has a wire NIC as well. Any bsd platform can act as a router in this instance, as long as there are at least 2 NICs. Dru Levigne's "BSD Hacks" book has an example of using obsd as a wireless router to a wired network; yours would be similar. And in addition, Michael Lucas's "Absolute OpenBSD" discusses setting up DMZs with two firewalls, which is also similar to what you need.
