ListIP is a read-only TStrings property that represents the list of valid IP addresses for the current network settings. IP addresses in the list are in "dotted-decimal" form, like 129.71.2.4. 

ListIP is automatically populated when values are read from the property and the list does not contain any entries, or by the OnNetAddressChange and OnNetMaskChange event handlers. FillIPLIst is used to populate the strings in ListIP. 

ListIP will not contain IP addresses in the IDE, or when the component state is csDesigning, if the length of the list from NumIP will exceed 1024 entries. This is done to prevent a long loop where the IDE would appear to be locked.

OnNetAddressChange OnNetMaskChange NumIP