How to configure TOTP for specific user on SMA 100 series.
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Log in to the management interface of the SMA appliance and navigate to Users|Local Users.
Choose the user and click the Edit icon.
Click the Login Policies tab and enable One-Time Password.
Enable Use Mobile App.
In the Allow Bind Network box, specify the IP address of the network that the user should be connected to so that the user can see the QR code to bind the mobile application during login. You can specify multiple networks in the Allow Bind Network box using ‘;’ as a separator between network IP addresses. If you specify multiple networks, the user should be connected to any one of the specified networks to complete mobile app binding. NOTE: If you leave the Allow Bind Network box blank, the mobile app can be bound when login to Virtual Office is attempted from any network.