This is the IP address and port the server listens to for incoming gateway data. All gateways you install are populated with this IP address and port by default.
Note: If the Network adaptor drop-down list is blank, do not proceed. Without an IP address specified here, the web interface and gateways will not be able to locate the server. Cancel the install and reinstall Network Monitor on a different machine that displays a value in this drop-down list.