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HAPTER
Captive Portal
14.1 Overview
A captive portal can intercepts network traffic, according to the authentication policies, until the
user authenticates his or her connection, usually through a specifically designated login web page.
As an added security measure, the NXC contains captive portal functionality. This means all web
page requests can initially be redirected to a special web page that requires you to authenticate
your session. Once authentication is successful, you can then connect to the rest of the network or
Internet.
Typically, you often find captive portal pages in public hotspots such as bookstores, coffee shops,
and hotel rooms, to name a few; as soon as you attempt to open a web page, the hotspot's AP
reroutes your browser to a captive portal page that prompts you to log in.
Figure 88 Captive Portal Example
The captive portal page only appears once per authentication session. Unless a user idles out or
closes the connection, he or she generally will not see it again during the same session.
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Troubleshooting
