This article provides an overview of the RADIUS protocols supported by Okta.

• RADIUS Authentication
• Multi-Factor Authentication (MFA)

Okta currently supports the following protocols:

• EAP Generic Token Card (EAP-GTC).
  Currently only supported by NetMotion mobility.

• EAP Tunneled Transport Layer Security (EAP-TTLS) with PAP as the inner authentication protocol within the secure TLS tunnel.
  Currently, the Cisco Meraki and Cisco ASA RADIUS apps support configuration for EAP-TTLS.

• UDP, defaulting to port 1812, using multiple ports simultaneously.

Further protocols could be supported using middleware to translate between protocols.

NOTE: Okta does not support CHAP for RADIUS at this time.
 

Related References

• About the Okta RADIUS Agent and Applications