APM Configuration to Support Duo MFA using iRule

Overview BIG-IP APM has supported Duo as an MFA provider for a long time with RADIUS-based integration. Recently, Duo has added support for Universal Prompt that uses Open ID Connect (OIDC) protoco...
0151T0000040JicQAE.png
Updated Mar 01, 2025
Version 8.0
BIG-IP
BIG-IP Access Policy Manager (APM)
big-ip apm
duo
iRules
mfa
OAuth Client
security
Hardeep_Kaur's avatar
Ret. Employee
I document user guides, online help, and release notes for F5's BIG-IP APM, F5 Access Apps, and Edge Client products. I also work on Access Guided Configuration online help and compatibility matrices.
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delv3chio's avatar
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Joined May 20, 2019
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Jerrod_Kimbler's avatar
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Vintage F5 Employee, Est. 2006
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Kyrim's avatar
Kyrim
Icon for Nimbostratus rankNimbostratus
Jun 20, 2022

Hi All,

After completing Primary Authentication, I got this error

{"error": "invalid_request", "error_description": "request: ['Length must be between 1 and 4096.'], "}

Please tell me why and how to resolve it! 

Thanks!

Luis_Melendrez's avatar
Luis_Melendrez
Icon for Altostratus rankAltostratus
Feb 01, 2024

Hello Kyrim,

Were you able to find a solution?

Thanks