Desktop Central has different agents for different locations, for example a local office agent will not be the same as the remote office agent. Similarly every remote office has different agents as well. When you are managing computers one or more remote locations, you can have a defined set of IP ranges for different offices. This enables the Desktop Central Server to identify the agents with respect to the IP range.
So whenever a computer is moved from a local office to a remote location, IP scope is used to automatically detect and deploy the respective WAN agent. Desktop Central will check for the change in the IP address periodically and will deploy the appropriate agents whenever a change is detected.