What is the significance of using Virtual LANs (VLANs) with SonicWall?

Using Virtual LANs (VLANs) with SonicWall is significant because VLANs are instrumental in segmenting traffic into isolated networks. This segmentation enhances network management and security by allowing administrators to create separate broadcast domains within a single physical network. Each VLAN can have its own set of policies, access controls, and configurations, which helps in controlling the flow of traffic based on organizational needs and security requirements.

This isolation means that if one VLAN experiences security issues or heavy traffic, it does not impact the performance or security of other VLANs. Additionally, by organizing devices into VLANs, network management becomes more streamlined, allowing for easier monitoring, troubleshooting, and policy enforcement.

In contrast to the other options, VLANs do not eliminate the need for firewalls; rather, they work alongside them to enhance security. VLANs do not require all devices to be on the same subnet, as they function to define separate subnets logically. Lastly, VLANs are not limited to specific SonicWall models; they can be implemented across various models and configurations within the SonicWall product line. Hence, the idea of VLANs segmenting traffic into isolated networks is crucial for effective network design and operation.