
GregH.00578 (Customer) asked a question.
we have configured our VPN to use Okta Radius agent. Okta Verify works well with this, but we have a group of users that don't have compatible phones. We thought Titan Keys would work, but I read: The U2F security key is not compatible with RADIUS-enabled implementations.
WE don't allow email, voice or SMS messaging for factors.
Are Yubikeys a viable option? If so, it's only the seeded & managed ones, correct?

Hello @GregH.00578 (Customer),
Please check the following thread with related information: https://support.okta.com/help/s/question/0D50Z00008G7VLqSAN/can-i-use-yubikey-with-okta-and-openvpn-access-server?language=en_US
Regards,
Natalia
Okta Inc.