Strange behaviour of freeradius...?

James Wakefield jamesw at
Tue Jan 16 22:46:22 CET 2007

Polyxronopoulos Adreas wrote:

>  Do you think my AP doesn't say nothing to
> freeradius after the mac-address drop? There is nothing in the AP 
> web-configuration which could set it on and solve the problem. If the 
> problem is the nas there is not a solution ?
> Thanks a lot for your time....

I suspect the AP isn't sending Accounting-Stop in this situation, but 
you can confirm that by running freeradius in debug mode (-X) and 
watching the screen, or running a packet sniffer such as wireshark or 

If the AP isn't sending Accounting-Stop, and there's no way you can get 
a better AP that does, I guess you could periodically run a script from 
cron to log into the AP's web interface and grab the list of MAC 
addresses and compare against what your accounting database thinks are 
open sessions...

James Wakefield,
Unix Administrator, Information Technology Services Division
Deakin University, Geelong, Victoria 3217 Australia.

Phone: 03 5227 8690 International: +61 3 5227 8690
Fax:   03 5227 8866 International: +61 3 5227 8866
E-mail:   james.wakefield at

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