Prior to configuring Cisco ASA for two-factor authentication, you must have the DualShield Authentication Server and DualShield Radius Server installed and operating. For the installation, configuration and administration of DualShield Authentication and Radius servers please refer to the following documents:
You also need to have a RADIUS application created in the DualShield authentication server. The application will be used for the two-factor authentication in Cisco ASA. The document below provides general instructions for RADIUS authentication with the DualShield Radius Server:
VPN & RADIUS - Administration Guide
Following outlines the key steps:
In DualShield
In Cisco ASA