Hi Zemerick,
Hi did a lot of profilings with conflict detection a time ago.The issue i was strungling with was that after a second authentication dhcp fingerprinting was not take place and dont update the endpoint respository.
What i did:
1. Put an HP printer in my network, dhcp fingerprint, profiled and came online correctly.
2. i spoof the mac-adres of the printer to my laptop
3. put out the printer interface and put my laptop in, 1 minute after the first connection (step 1).
4. because the interval between the printer and the laptop was to short, fingerprinting dont happen, and conflict detection dont take place.
What i figure-out was that ClearPass DHCP fingerprinting was hold off for a couple of minutes to prevent to much CPU resource from receiving DHCP probe requests.
Iam not sure if this is still happen in 6.8.x, because there are some profiling updates in de 6.8 release i didnt test.