Version tile 2.0.9 does not have this information, that netCut were doing it internally without notify user.  before netCut find if it's under a managed switch , it will not function well if it is in deed under a managed environment.   ---------- RootCause of some WIFI user stange experience. as WIFI set at driver level on MAC SPOOFING. and sometime (most time netcut been used to cut off right after start up)

Does that means WIFI or managed environment (managed switch) free from ARP weakness?   Answer: NO.

There are still way to spoof.  Netcut does it internally already.   so just need to wait.  next release 2.1.0 version of netCut will give this hints when it done study the network. (usually 30 seconds)

Ref managed network here http://www.arcai.com/arcais-knwoledgebase/item/68-unmanaged-versus-managed-switches.html