The Internet configuration window is the place where details of the Internet account used to connect to the Internet are entered.
If the Server is fitted with two Ethernet cards, it is automatically
placed in a Twin Ethernet configuration, with the WAN (Internet) connection
assigned to the second Ethernet adaptor. This mode is intended for
use with broadband connections such as ADSL,Cable modems, Fixed Wireless
Access and X.21. The appearance of the Internet configuration window changes
appropriately when this mode is active.