NXC Series User’s Guide
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CHAPTER 15
Captive Portal
15.1 Overview
A captive portal can intercept network traffic, according to the authentication policies, until the user
authenticates his or her connection, usually through a different 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 112 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.
15.1.1 Captive Portal Type
The NXC allows you to use either an internal captive web portal (built into the NXC) or external captive
web portal (on an external web server). You can even customize the portal page(s). See Section 15.3.3
on page 213 for portal pages details.
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