Duo 2FA and Travel

Information about using Duo while Traveling.


Duo 2FA offers multiple options to meet your needs when traveling. It is suggested that you enroll any device you plan on using ahead of time.


  • Even without cellular service or WiFi connection, you may use the Duo Mobile app to generate a passcode that you can use to authentication. Simply choose the 'Enter a Passcode' option when you get the Duo authentication prompt. To generate the passcode, open the Duo Mobile app on your phone and tap the button with the Key symbol.
  • If you are unable to have a smartphone during your travel, it is possible to get 10 one-time use bypass codes that you can use for Duo 2FA authentication for the duration of your trip. You can generate these by going to MyNetID - https://mynetid.rice.edu, selecting Two-Factor Authentication on left menu, then scrolling down on the Two-Factor Authentication settings page and clicking Generate Bypass CodesWarning: Each time you click this button new codes will be generated invalidating the previous codes.
  • If you have cellular service or a WiFi connection, then you can simply use whatever authentication technique you normally use. The push, passcode, and phone options all work overseas. You can even add an international phone number as one of your authentication options.


The Duo app and hardware tokens are subject to export control regulations. According to federal export control regulations, the Duo app and hardware tokens may not be transported or sent to embargoed nations identified by the U.S. State Department. 

Sanctions Programs and Country Information

Here is a dated list from August 2019:

  • Cuba
  • Iran
  • North Korea
  • Sudan
  • Syria
  • Venezuela

If you are traveling to any of those countries, delete or uninstall the Duo app from any devices you will take with you and do not take Duo hardware tokens with you.

Keywords:duo travel mfa 2fa duotravel   Doc ID:70793
Owner:Brian W.Group:Rice University
Created:2017-02-17 12:42 CDTUpdated:2021-07-07 13:25 CDT
Sites:Rice University
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