After successful enrollment into DUO each time you access a 2FA protected WEB system, you are presented the below authentication options for normal DUO App users:

The easiest mechanism is the push mechanism were you only have to hit the approve button in the DUO app on your smart phone to login. The passcode can be obtained by clicking the created LION entry in the DUO app. It will show a six digit code that you can enter in above window, second option. Once the code is accepted or you pressed the Approve button on the DUO app, you are forwarded to the Web sit.

Users that have enrolled DUO with only a yubikey are presented the yubikey passcode entry only: Click on the 'Enter Passcode' button, insert you Yubikey in your device, then press and hold the Yubikey button until a 42 character string appears in the passcode input field. Once the code is accepted you are forwarded to the Web sit.

Users that