Re: [lwip-users] about lwip TCP/IP paratmers

[Kieran Mansley]

On Tue, 2009-03-17 at 17:38 +0800, yueyue papa wrote:
> Hi all,
> 
> I meet the problem in lwIP working on the poor GPRS network.
> 
> I could see connection lost in the GPRS network: lwIP send FIN, so the
> connection is losted.

lwIP normally only sends a FIN when the connection is closed by the
application.  If something were timing out in the stack it would instead
be either just dropping the connection or sending a RST to abort the
connection.  This suggests that your application is giving up on the
connection, and so changing the timers in lwIP won't make any
difference.

Kieran