Unfortunately, PRTG has no implemented sensors to monitor this kind of traffic, we are also not sure if information about this traffic are even offered by the device somehow. Therefore please contact the device and check if these information can be retrieved via SNMP or anything similar.
Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.