Monday, March 25, 2019

Odd RADIUS behavior? Multiple access-challenges

Happy Monday everyone!

I've been trying to track down odd issues with our RADIUS implementation for some time now. I'm seeing my RADIUS server reply to supplicants with multiple access-challenge packets. Sometimes just three or four, sometimes a dozen. 75% of the time, supplicants end up getting an access-accept, but I'd estimate 25% fail to respond.

I've thrown up a log excerpt onto pastebin here - does anyone have any idea if this is normal? I can't recall seeing behavior like this in the past and can't find much online or in the RADIUS RFC on this.



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