The solution is to disable auto trunking and move native VLANs to unused VLANs.
VLAN hopping is a PC security misuse, a strategy for assaulting networked assets on a virtual LAN (VLAN). The fundamental idea driving all VLAN hopping assaults is for an assaulting host on a VLAN to access traffic on different VLANs that would ordinarily not be accessible.
