Networking

Guest Wi-Fi Client Isolation Explained

Network Design diagram · made in Skemio

Network diagram illustrating an AP with client isolation dropping peer-to-peer traffic between two guest laptops while allowing outbound internet access through a firewall.
Network diagram illustrating an AP with client isolation dropping peer-to-peer traffic between two guest laptops while allowing outbound internet access through a firewall.
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What it shows

  • Client isolation drops Layer 2 ARP and unicast traffic between wireless peers.
  • Traffic is restricted strictly upstream toward the gateway router.
  • Protects personal devices from network scanning, ARP spoofing, and lateral worms.

The takeaway

Client isolation forces peer-to-peer Wi-Fi traffic to drop at the AP, keeping guests safe from each other.

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