Am 26.11.2015 um 22:01 schrieb Steven Tardy <sjt5atra at gmail.com>: >> 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. spoofing would not work without to be able to get the response i.e. massive compromised infrastructure ... -- LF