I have an LAN environment where outsiders may come in and want to use our network for internet. Since their machine is not in the domain, I want to be able to differentiate between company machines which I want full access, and a foreign machine that I would restrict to port 80 only. Is there any software reccomendations out there or places someone can point me to so I can acquire the knowlege of this project? I thought about a second WIC card or a VLAN, but I want the person to be able to get access from anywhere in my building, which may be an empty office. Thanks in advance.