Tag: vlanhopping

VLAN hopping attack – Switch Spoofing and Double tagging

VLAN hopping attack can be possible by two different approaches, Switch Spoofing or Double tagging.

When you are in a situation where you need to configure and set up security of VLAN trunks, also consider the potential for an exploit called VLAN hopping. Attacker can craft and send positioned frames on one access VLAN with spoofed 802.1Q tags so that the packet end up on a totally different VLAN and all this without the use of a router.

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