Reference no: EM132195922

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VLAN Architecture

Virtual Local Area Networks (VLANs) are very popular and important networks. This is because, VLANs segment a network, create multiple broadcast domains, and they effectively allow traffic from broadcast domains to segmented networks (Partsenidis, 2018). Segmentation is a key in network security.

As cybercrime becomes a worldwide threat, the importance networks security is growing so fast. In order to establish a modern network security, VLAN architecture plays an important role.

The reason why we need serious consideration during design is, even though VLANs are very important networks, there is a number of attacks on VLAN infrastructure like switch spoofing and Double tagging attack. Attackers take advantage of security gap during design and implementation of VLANs.

For example, in switch spoofing attack, the attacker takes advantage of the default configuration of the switch port which is dynamic auto. The network attacker then configures the system to imitate itself as a switch. By doing so, the hackers get access to all VLANs ("Cisco Networking Academy", 2014).

Cisco Networking Academy. (2014, June 25). Cisco Networking Academy Switched Networks Companion Guide: VLANs.

Partsenidis, C. (2018). VLAN Security - Making the most of VLANs.