ZyXEL Communications VPN Series Handbook page 777

Security firewalls

Table of Contents

www.zyxel.com

Configure valid time and login service types

Enable two factor authentication for admin access. Configure valid time and

select which services require two-factor authentication for admin user. The valid

time is the deadline that admin needs to submit the two-factor authentication

code to get the access. The access request is rejected if submitting the code

later than valid time. By default, the valid time is 3 minutes.

CONFIGURATION > Object > Auth. Method > Two-factor Authentication > Admin