To have multiple IP addresses on a single computer, you must map them through the operating system or provide additional cards. To set up multiple IP addresses through the operating system, use the Network Control Panel (Windows) or the ifconfig utility (UNIX/Linux).
Directions for using ifconfig vary from platform to platform. Consult your operating system documentation for more information.
Typically you create an IP-address-based virtual server by creating a listen socket that listens on a specific IP address. The listen socket’s default virtual server is an IP-address-based virtual server. For more information on ways to deploy virtual servers, see Deploying Virtual Servers.