Episode 158: Advanced Wireless Security — MAC Filters, Client Isolation, and Captive Portals

Wireless networks require layered security controls to keep unauthorized users out and ensure a clean client experience. In this episode, we cover advanced wireless protections including MAC filtering, client isolation, and captive portals. MAC filtering adds a basic layer of access control by allowing or denying clients based on their hardware addresses, though it must be combined with other controls for true security.We also discuss client isolation, which prevents wireless clients on the same SSID from communicating with each other—a useful feature in public or guest networks. Finally, we explain captive portals and how they enforce policy acceptance, credential entry, or billing before granting full internet access. These tools are common in enterprise, hospitality, and campus deployments, and understanding them helps secure wireless deployments with more than just a password.

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