If you do not have the ability to use one of the above highly recommended solutions for secondary factor authentication, SonicWall’s SMA 100 series does offers a One Time Password (OTP) option that can be used as a secondary factor (2FA). This token can be sent to the requesting individual via email or SMS text.
To get started with the OTP setup, you should be prepared to choose the method that suites your organizations need the best. A User can be given the option to choose any of the three if the admin desires to allow this.