online users and LNS users are not equal and fluctuating

[Alan DeKok]

> On Mar 21, 2017, at 4:50 AM, iQalalwa <iqalalwa at gmail.com> wrote:
> 
> Dear Sir,
> I have FreeRADIUS Version 2.2.0,

  You should upgrade.

> I have 3 Clients (3 LNS Cisco routers) and
> I am facing problem that online users are not stable in radius.
> Details:

  What does that mean?

> LNS01(Cisco), LNS02(Cisco): handle same users found in freeradiusdb.
> BUT in radius, LNS03 is not handling same number of users found in
> LNS03(Cisco).
> they are fluctuating all time. configuration of cisco LNSs are same. and I
> don't know from where the problem comes from.
> note: on LNS03(cisco) the users are stable but the problem in radius online
> users.

  RADIUS accounting packets can be lost.  There is no way to *guarantee* that the information in the "radacct" table is exactly the same as what is in the NAS.

  And if the two disagree, the usual cause is that the NAS is lying to the RADIUS server.

  Alan DeKok.