[OpenSIPS-Users] Problem with simultaneous CANCEL + 200 OK

[Bogdan-Andrei Iancu]

Hi Daniel,

Without a pcap showing the signaling is hard to understand (not to 
mention helping) your scenario. Please provide a link to the pcap or ngrep.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   http://www.opensips-solutions.com
OpenSIPS Summit 2018
   http://www.opensips.org/events/Summit-2018Amsterdam

On 02/20/2018 06:43 PM, Daniel Zanutti wrote:
> Hey
>
> I had a problem when receiving simultaneous CANCEL from customer and 
> 200 OK from gateway.
>
> Seems that the first CANCEL was rejected, but the second CANCEL was 
> accepted. This second CANCEL did NOT go to the gateway, just Opensips 
> received and replied with 200 OK.
>
> This is the log of the first CANCEL:
> Feb 15 18:39:22 /sbin/opensips[28845]: SCRIPT:TRAFFIC:WARNING: method 
> CANCEL (7Qbq3O3CReMfPflAtl8NY3ddTqPVBHO2785126 at 2.2.2.2/ 
> <http://7Qbq3O3CReMfPflAtl8NY3ddTqPVBHO2785126@2.2.2.2/>XAeG2xj278512T2 
> / 1839212581509953 ) not validated and not fixed ( code=-1 )
>
> code -1 is the return of validate_dialog()
>
> Second CANCEL didn't generated a log.
>
> Shouldn't all CANCELs be rejected? On this case, just the first one 
> was rejected.
>
> I'm using version 1.9.11.
>
>
>
>
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