ZyWALL USG Series User’s Guide
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CHAPTER 20
Web Authentication
20.1 Web Auth Overview
Web authentication can intercept network traffic, according to the authentication policies, until the
user authenticates his or her connection, usually through a specifically designated login web page. This
means all web page requests can initially be redirected to a special web page that requires users to
authenticate their sessions. Once authentication is successful, they can then connect to the rest of the
network or Internet.
As soon as a user attempt to open a web page, the Zyxel Device reroutes his/her browser to a web
portal page that prompts him/her to log in.
Figure 351 Web Authentication Example
The web authentication page only appears once per authentication session. Unless a user session times
out or he/she closes the connection, he or she generally will not see it again during the same session.
20.1.1 What You Can Do in this Chapter
• Use the Configuration > Web Authentication screens (Section 20.2 on page 491) to create and
manage web authentication policies.
• Use the Configuration > Web Authentication > SSO screen (Section 20.3 on page 511) to configure
how the Zyxel Device communicates with a Single Sign-On agent.
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