Click on the Start button - Settings - Control Panel - double-click the Network icon - select the TCP/IP of your NIC - click the properties button.
Click on the Start button - Settings - Network and Dialup Connections - right-click the Local Area Connection for the interface you will connect to the DSL line - Select Properties - Select Internet Protocol (TCP/IP) then click the Properties button.
Click on the Start button - Settings - Control Panel - double-click - the Network icon - click on the Protocol tab - TCP/IP Protocol - Properties.
Click on the Start button - click My Computer - right-click My Network Places - click Properties - right-click the Local Area Connection for the interface you will connect to the DSL line - Select Properties - Select Internet Protocol (TCP/IP) then click the Properties button.