Using VLANs and IP subnets in a network infrastructure helps segregate surveillance video traffic from other network traffic. This separation improves network security by limiting access to authorized devices only and reducing the risk of video interception by malicious users. It does not inherently provide encryption or establish encrypted communication links, but it enhances security by isolating sensitive video streams.
Detailed explanations can be found in Axis Communications network design guides and security best practices documents.
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