NAS online/offline?

Ezequiel O. Block ezequielb at
Tue Feb 7 18:19:13 CET 2006

nikwan (sent by wrote:
> Hypothetically situation:
> You have users logged into a NAS. the NAS goes down without warning 
> (power failure...) Users who where logged in now have sessions which are 
> not complete (acctstoptime is set to NULL). In my case Simultaneous 
> logins is disabled and need to be so. Therefore once the NAS is brought 
> back up. the users cant log back in, as radius will not authorize the 
> users as they are apparently logged in.
> My question is... How do i set the accstoptime to the time when the NAS 
> goes down. Is there a way to see when a NAS dies....
> Any input will be greatly appreciated
> ------------------------------------------------------------------------
> View this message in context: NAS online/offline? 
> <>
> Sent from the FreeRadius - User 
> <> forum at
> ------------------------------------------------------------------------
> - 
> List info/subscribe/unsubscribe? See

I Had the same issue, search the list for "how to deal with this" as 
subject and you will get the full thread, in a nutshell an option that 
may help you is that your NAS should use Acounting On/Off packets in 
order to let FR know that all those sessions went down. I think this 
should be ok in case you have a single NAS.


Ezequiel O. Block
Cooperativa La Lonja, Servicios de Internet.
T 02322-474537
F 02322-470406
E ezequielb at

More information about the Freeradius-Users mailing list