IP Pool FreeRadius

[Alan DeKok]

On Apr 27, 2016, at 5:47 AM, Juanjo Abenza <juanjo at excom.es> wrote:
> We migrated the Pool to freeradius and its works like a charm following
> your recommendations.

  Good.

> Our NAS is Mikrotik also we use it for PPPOE clients.
> 
> Can you please, explain me the fourth possible problem?
> "4) the NAS lets the user stay online even after the IP has expired
>  - this happens a LOT."
> (I guess this happend if accounting packets

  That happens if the NAS ignores Session-Timeout, or it doesn't send accounting packets which say the user is still online.

  The only way for FreeRADIUS to know if the user is still online is if the NAS tells it.  So.. if there are disagreements between the FreeRADIUS database and what the user is doing, blame the NAS.

> We can see the expiry_time in the database is one hour after the the IP
> lease, our users are still connected with the same IP address after this
> expiry time, i guess this expiry_time is renewed each accounting update
> gived from NAS.

  Yes.

> Am i corrent hoping this behaviour from free radius? 

  Yes.

  Alan DeKok.