You're connecting irectly to a DSL modem? Does it have a router built in? If not and you insist on doing it that way you will need to run PPPoE software on your system. My susgestion is do yourself a big favor and use a simple inexpensive home DSL/cable router. These are very cheap now (Memorial day weekend saw several different brands including Linksys selling for under $10 after rebate). They will take care of PPPoE for you, do DHCP, and give you a safe and secure local network where multiple computers can use your DSL connection at the same time.