in 3.0.2/1.7 the tables are: UDT_portToEndpointCurrent and UDT_portToEndpointHistory
UDT_IPAddressHistory and UDT_IPAddressCurrent <--- maps IP address to an endpointID
UDT_Endpoint <-- has a MAC address in it
Thank you Richard.
The report is pretty cool if I do say so myself, it's an Interface Traffic Utilization report (Last 7 days) and for each interface it shows the (UDT) MAC address, IP address, First & Last seen, sorted by high to low traffic to help identify bandwidth hogs.
I had to create a couple of views, I'm sure it could be simplified, but it works!.