You can do in AppMeasurement or DTM, as long as you have the IP available for example as part of the data layer. Then you can write a if/else statement the change the RSID depending of the IP.
If you just collect the IP to an eVar or prop, you can setup a Virtual ReportSuite (for free) filtering internal traffic out (or only showing internal traffic). However, it won't work if you exclude the IP's already on the Report Suite...
/Løjmann