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Wireless & Mobility · Foundational

Captive Portal

A web page that intercepts a user's HTTP traffic and requires acceptance or login before granting access.

Definition

Captive portals are common for guest networks and can provide acceptable use acceptance, sponsor approval, or credential login. Clients detect portals via probe URLs. A portal alone does not encrypt wireless traffic.

Exam tip

Captive portal on an open SSID provides no encryption; combine with OWE if possible.

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