[Serusers] Keep Alives? SO_KEEP_ALIVE? TCP Null packet?

[Jan Janak]

I would recommend to change the firewall rules.

  Jan.

On 07-08 02:57, Jamie Yukes wrote:
> Suggesting a shorter re-REGISTER interval would solve a problem that
> exists between the UA and the proxy....
> 
> Our problem is between a proxy and another proxy.  We control one
> proxy and the other proxy is with the ITSP.  The TCP connection exists
> during a live call.  The other proxy sends TCP "null packet" keep
> alives every 15 seconds... however, our firewall does not apply them
> to the session activity timer on our outbound connection.  We would
> need to send TCP "null packet" keep alives to keep our firewall
> session activity timer from lapsing, and losing session control.
> 
> Should I implement this via an external FIFO interface, that
> enumerates active call sessions every 15 seconds, and write a
> component that will send "null packet" on each connection?  Should I
> extend something like the tm module?
> 
> Appreciatively,
> Jamie Yukes
> 
> On Fri, 6 Aug 2004 22:53:30 -0500, Michael Shuler <mike at bwsys.net> wrote:
> > Make the client reregister on a short interval i.e. 60 seconds.  This works
> > quite well for us.
> > 
> > ----------------------------------------
> > 
> > Michael Shuler, C.E.O.
> > BitWise Systems, Inc.
> > 682 High Point Lane
> > East Peoria, IL 61611
> > Office: (217) 585-0357
> > Cell: (309) 657-6365
> > Fax: (309) 213-3500
> > E-Mail: mike at bwsys.net
> > Customer Service: (877) 976-0711
> > 
> > 
> > 
> > > -----Original Message-----
> > > From: serusers-bounces at lists.iptel.org
> > > [mailto:serusers-bounces at lists.iptel.org] On Behalf Of Jamie Yukes
> > > Sent: Friday, August 06, 2004 10:42 PM
> > > To: serusers at lists.iptel.org
> > > Subject: [Serusers] Keep Alives? SO_KEEP_ALIVE? TCP Null packet?
> > >
> > >
> > > I use TCP for my SIP connections.  I have noticed other proxy servers
> > > send TCP "null packet" keep-alives during a connection.  What is the
> > > feasibility of doing something like this in SER?  Where would you
> > > steer someone who would consider implementing?
> > >
> > > In particular this would solve a firewall issue related to "inactivity
> > > timeout".  (UAC and UAS don't support Session Timers)
> > >
> > > Jamie Yukes
> > > 
> > > _______________________________________________
> > > Serusers mailing list
> > > serusers at lists.iptel.org
> > > http://lists.iptel.org/mailman/listinfo/serusers
> > >
> > 
> > 
> 
> Jamie Yukes
> Global Connect http://www.gc1.com/
> 
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