ZyXEL Communications ZyWALL 310 - 56.4.4 Two-Factor Authentication with Google Authenticator

Chapter 56 Authentication Objects
ZyWALL Series CLI Reference Guide
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56.4.4 Two-Factor Authentication with Google Authenticator
This section introduces how Google Authenticator two-factor authentication works.
Figure 38 Google Authenticator Two-Factor Authentication
Admin Access (Web Configurator, SSH, Telnet)
1 An admin user connects to the Zyxel Device through the Web Configurator, SSH, or Telnet.
2 The Zyxel Device requests the admin user’s username and password.
3 The Zyxel Device authenticates the admin user’s username and password using an Active Directory
server, a RADIUS server, or a local Zyxel Device database. If this authentication is successful, the Zyxel
Device requests the admin user’s Google Authenticator code.
4 The admin user enters the code displayed in the Google Authenticator app.
5 If the Google Authenticator code is correct, the admin user can log into the Zyxel Device.