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VLAN hopping
The ability to make network traffic jump between VLANs through an abuse of IEEE 802. 1Q VLAN tagging known as double encapsulation.
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The IEEE standard that defines VLAN tagging. VLAN tagging is used by switches and bridges to manage traffic within and between VLANs.
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A logical network segmentation implemented on switches and bridges to manage traffic. Multiple VLANs can be hosted on the same switch but are isolated as if they are separate physical networks. Only through a routing function, often provided by a multilayer switch, can cross-VLAN communications occur. VLANs function like physical network segments. Virtual Local Area NetworkVirtual local area network.
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Private VLANs that are configured to use a dedicated or reserved uplink port. The members of a private VLAN or a port isolated VLAN can interact only with each other and over the predetermined exit port or uplink port. A common implementation of port isolation occurs in hotels.
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Family of IEEE standards for wireless LANs first introduced in 1997. The first standard to be implemented, 802. 11b, specifies from 1 to 11 Mbps in the unlicensed band using DSSS (direct sequence spread spectrum) technology. The Wireless Ethernet Compatibility Association (WECA) brands it as Wireless Fidelity (WiFi).
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A way of transmitting information in a wave form that is reasonably fast and is often used for notebooks. Also known as IEEE 802. 11b.
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