Selecting Web listener networks (IP addresses)

The Web listener network, or networks, that you select depend on the networks from which clients will connect to the published Web server. For example, if the Web site you are publishing allows client requests from the Internet (External network), you should select the External network for the Web listener. By selecting the External network, you are selecting the IP addresses on the ISA Server computer that are associated with the External network adapter. If you do not limit the IP addresses, all the IP addresses associated with the selected network adapter will be included in the listener configuration.