stale session

[Alan DeKok]

On May 25, 2015, at 8:22 PM, Sergio Diaz <sdiazf at logitel.com.mx> wrote:
> I am simulating the problem on what if the AP goes down (due to  various reasons). I observed that user is not properly disconnected  and result is stale session. When the AP is up and when the previous  user tries to log in he/she gets login failed message because  "Simultaneous-Use" is in effect while previous session is still  ticking.
> 
> How can prevent and fix  this?

  Get the AP to send accounting packets with Acct-Status-Type = Accounting-On.  That tells the server that the AP has rebooted, and the server will clear the old sessions from the DB.

  Otherwise, FreeRADIUS has no idea that the AP rebooted, and can only assume that the sessions are still active.

  Alan DeKok.