Chapter 43 Object
ZyWALL USG Series User’s Guide
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•Add HTTP, HTTPS, SSH, and/or, TELNET in the Object > Service > Service Group >
Default_Allow_WAN_To_ZyWALL service group.
Two-Factor authentication may fail if one of the above is not configured or one of the below occurred.
• The user did not receive the authorization SMS or email. Check if the mobile telephone number or
email address of the user in the Active Directory, RADIUS Server or local Zyxel Device database is
configured correctly.
• ViaNett Authentication failed and no SMS was sent. Check that SMS is enabled and credentials are
correct in System > Notification > SMS.
• Mail server authentication failed. Check if the System > Notification > Mail Server settings are correct.
• The authorization timed out. Extend the Valid Time in Configuration > Object > Auth. Method > Two-
factor Authentication > VPN Access.
Use this screen to select the users and VPN service(s) that requires two-factor authentication.
Go to Configuration > Object > Auth. Method > Two-factor Authentication > VPN Access and configure
the following screen as shown.
Figure 609 Configuration > Object > Auth. Method > Two-factor Authentication > VPN Access
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