Alive sessions in radacct table

Alan DeKok aland at
Mon Sep 28 13:38:38 CEST 2015

On Sep 28, 2015, at 5:52 AM, Anisa Allahdadi <anisa.alla at> wrote:
> First of all, I didn't change any setting in the Access Point configuration
> (it seems it was somehow there), but I added one line to the 'attrs' file,
> in the DEFAULT section:
> Acct-Interim-Interval <= 300
> And since then, one station is sending Interim-Update requests, but not the
> other stations! Why is that so? This station that sends Interim-Update has
> the wireless connection on the Radius Server itself. Does anybody have any
> idea why is that so?

  Because it's the fault of the NAS.  Ask the NAS vendors why they don't implement Acct-Interim-Interval.

  As a general rule, when a NAS ignores an attribute... YOU MUST FIX THE NAS.  No amount of poking the RADIUS server will cause the NAS to behave differently. 

  Alan DeKok.

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