RE: [Serusers] "200 - Cancelling" Message Problem - sr-users

12 Nov 2004

Dear Andrei.
	Thanks for your response.  That solved my problem.
	Thanks you very much

Ricardo.-

-----Mensaje original-----
De: Andrei Pelinescu-Onciul
[mailto:pelinescu-onciul@fokus.fraunhofer.de]
Enviado el: Viernes, 12 de Noviembre de 2004 11:07
Para: Ricardo Martinez
CC: &#39;serusers(a)lists.iptel.org&#39;
Asunto: Re: [Serusers] "200 - Cancelling" Message Problem

On Nov 12, 2004 at 10:20, Ricardo Martinez &lt;rmartinez(a)redvoiss.net&gt; wrote:
...
  Hello Andrei.
 	Thanks for your reply.  I'm using Mediaproxy with the mediaproxy
 module from SER.  I'm use client_nat_test to modify the rport.
 	if (client_nat_test("1")) {
                 log(1, "NAT: Requerimiento de IP privada --> fixed contact
 (en rutina principal)\n");
                 setflag(5);
                 force_rport();
                 fix_contact();
                 append_hf("P-hint: fixed NAT contact for request\r\n");
         };

 Here, i'm attaching the complete debug from a call with a CANCEL request.
 (cancel_problem.txt)

 Can this problem be solved? or is more related with the endpoint? 
Ok, so the problem is a little different from what I thought. It's not
about CANCEL reaching its destination, it's about the reply to CANCEL
not going back. This happens because you don't force_rport() all the
requests that come from natted UAs.
In the config snippet above, you only "fix" requests wiht private ip in
contacts, but CANCEL doesn't have any Contact: => it will never enter
this block.

Try to change client_nat_test("1") into client_nat_test("3").

Andrei