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Hardening Your Internal Network

Jul 20
1 min read

  • Flat networks are security nightmares.

  • Start segmenting immediately.

  • Create separate VLANs for Data, VoIP, Management, and Guest traffic. Crucially, implement inter-VLAN firewall rules at the core switch/router level that explicitly block traffic from Guest and IoT segments from reaching your Management or Data VLANs.

  • This "zero-trust" internal approach limits potential lateral movement by attackers.


Blue cybersecurity infographic of zero-trust VLAN segmentation: data, VoIP, management, and guest networks with firewall rules.

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