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ACS 3.3 error (Bad request from NAS)

shawnmchenry
Level 1
Level 1

I've been seeing the following error fill our ACS failed attempts log sourced from one of of VPN concentrators. How do I go about finding the offender?

Bad request from NAS

1 Reply 1

gerardwest
Level 1
Level 1

Do a "debug aaa authorization" on the VPN concentrator to see if you have an attribute selected in your ACS that is not supported in the IOS version on the VPN concentrator.