What Does Virtual Local Area Network Hopping (VLAN Hopping) Mean?
Virtual local area network hopping (VLAN hopping) is a computer security exploit method for attacking computer resources that are connected on a virtual LAN (VLAN). The concept of VLAN hopping is to gain access to other VLANs that are present on the same network to which the hacker already has access. The attacker must have access to at least a single VLAN on the network to use as a base of operations from which to attack other VLANs.
Techopedia Explains Virtual Local Area Network Hopping (VLAN Hopping)
Gaining access to VLANs is one of the most significant ways to compromise network security, which gives the attacker almost total control. VLANs use a process called trunking, where a VLAN’s switches are set so that they look for specific channels to send and receive data. Attackers use this process as a back door to infiltrate other VLANs in the network.