idle timeout??

[Oguzhan Kayhan]

Hello,
Is there a default idle timeout for coova?
I didnt set any idletimeout on radius nor in coova configuration.
I just have an acct-interim interval by 60 secs.
One of my client is complaining about after reading some documents on the
net without any activity he needs to log on again. And according to the
logs it seems he also got new ip addresses everytime he logges in.

That problem seems like a client issue to me but i wanted to ask again.
As i know client asks for dhcp every 10 mins.(is there any parameter i can
set this too??) So how coova decides if user is idle or if user lost
connection???

So if it is not a client problem,
How can i check if a user is still online even if he is idle for a long
time..