> On Nov 26, 2015, at 3:51 PM, Alice Wonder <alice at domblogger.net> wrote: > > How do they deal with guaranteeing there is not IP address and MAC address spoofing? VLANs simply provide the same thing you are doing in the physical world (creating distinct broadcast domains), but does so logically/virtually. IP/MAC spoofing can only occur within a given broadcast domain.