CustomerGauge allows you to "wildcard" the IP address range. For instance: 

You can use "" for bellow IP address:

"" will support "" to "".

The wildcard will allow you to reduce the number of entries in IP security lists and not have to update the list for minor changes in the IP address, e.g. to 

This also works for Digital Signage.

Please note that wild cards cannot be added from the CustomerGauge front end. Please raise a support ticket if you want wild card IP address ranges to be added to your system.