routers as a security measure
As mentioned in my other posts, I run a stand-alone FC-5 box. It's located in the DMZ area on a spur of a large network.
I'm thinking of obtaining a small router/firewall of some kind and adding it as a security measure. I would assign it my static IP, and have it forward requests bound for ports 80, 22, and 25 to the server. (Those are the only 3 that I want open to the outside world.)
Question. Do you see any advantages or disadvantages to a scheme like that? One advantage I see is that by adding a hardware firewall, it would make absolutely sure only those ports were open. Any drawbacks?