[OpenSIPS-Users] Double via in MI generated NOTIFY

Thu Jun 4 02:45:39 CEST 2015

Yes, it resolves to itself. The domain is the one from OpenSIPS domains
table.
And this is actually what I want. I want OpenSIPS to find the contact from
its locations table using function lookup("locations");

And it works, OpenSIPS finds contact IP and sends NOTIFY to the phone.
The only thing is that the packet has 2 Via headers with the same IP and
port of OpenSIPS server.

As I said, it works, but looks weird.

On Wed, Jun 3, 2015 at 7:00 PM, Newlin, Ben <Ben.Newlin at inin.com> wrote:

>   It sounds like you may be sending the NOTIFY to yourself when you use
> the domain name instead of the IP. Have you verified the address that the
> domain resolves to? Is it the same as the OpenSIPS instance?
>
>  Ben Newlin
>
>   From: Stas Kobzar
> Reply-To: OpenSIPS users mailling list
> Date: Wednesday, June 3, 2015 at 6:00 PM
> To: Bogdan-Andrei Iancu
> Cc: OpenSIPS users mailling list
> Subject: Re: [OpenSIPS-Users] Double via in MI generated NOTIFY
>
>   Hi Bogdan,
>
>  No, I do not use local_route at all.
>
>  My code for these kind of notifies is in the beginning of the initial
> part  or main route after t_check_trans and looks like this:
>
>
> ----------------------------------------------------------------------------------------
> t_check_trans();
>
> # RFC3265: NOTIFY can not be outside SIP dialog.
> # So we should drop the packet
> if(is_method("NOTIFY")) {
>   # There is an exception: if this is a check-sync packet
>   # for phone configuration reload request
>   if($hdr(Event) =~ "check-sync"){
>     lookup("locations", "m");
>     xlog("L_INFO", "$ci|$rm| Send reboot request notify packet to
> destination $ru");
>     t_relay();
>     exit();
>   }
>   send_reply("481","Dialog does not exists");
>   exit;
> }
>
> ----------------------------------------------------------------------------------------
>
> I have tried different scenarios:
> - Put this code before t_check_trans
> - do not use lookup function
> - replaced t_relay with forward
>
> Nothing helped.
>
> However, when I run fifo command using IP address in sip URI, like this:
> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at 10.130.8.225 . . '"From: <
> sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: <
> sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'
>
> then, the packet seems to send directly from local_route. Because, in this
> case, I do not even see it in the logs.
>
> Thank you!
> Stas
>
>
>
>
> On Wed, Jun 3, 2015 at 11:05 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>
> wrote:
>
>> Hi Stas,
>>
>> Do you do any local_route stuff ? If yes, do you modify the RURI/DURI or
>> other parts of the requests?
>>
>> Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>
>>  On 01.06.2015 17:42, Stas Kobzar wrote:
>>
>>  Hello,
>>
>>  I am sending NOTIFY packet with event "check-sync" to reload phone
>> configuration.
>>
>>  I am doing it with opensips FIFO mi.
>>
>>  My command looks like this:
>> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at 10.130.8.225 . . '"From: <
>> sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: <
>> sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'
>>
>>  When I use IP address in RURI (sip:7037 at 10.130.8.225) it works as
>> expected.
>>
>>  However, when I use domain name in RURI (like this:
>> sip:7037 at campus.voip.etsmtl.ca) and my command looks like this:
>> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at campus.voip.etsmtl.ca . .
>> '"From: <sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo:
>> <sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'
>>
>>  I have two Via headers in my resulting NOTIFY packet with different
>> branche tags:
>>
>>  NOTIFY sip:7037 at 10.130.8.225 SIP/2.0.
>> Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.598957f2.0.
>> Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.498957f2.0.
>> To: sip:7037 at campus.voip.etsmtl.ca.
>> From: <sip:7037 at campus.voip.etsmtl.ca
>> >;tag=734c62bd59eb9f33d3e6313898450dd1.
>> CSeq: 10 NOTIFY.
>> Call-ID: 693206c572f70ff6-19332 at 10.130.8.20.
>> Max-Forwards: 69.
>> Content-Length: 0.
>> Server: ETS voip router01.
>> Event: check-sync
>> .
>>
>>
>>  In first case, I do not even see the packet in main route but I see it
>> in local_route.
>>
>>  In my second case I see it in main route but the packet is sent with
>> double Via header.
>>
>>  I am sure it is not my routing script, because I have just put a
>> forward to some IP whenever NOTIFY is received and I still have this
>> problem.
>>
>>  Is it a known issue?
>>
>>  Everything still works fine, but having a double Via in logs a bit
>> confusing.
>>
>>  Thank you,
>> --
>>
>> Stas Kobzar
>>
>> Developeur VoIP / VoIP Developer
>>
>> ___________________
>>
>> Modulis.ca Inc.
>>
>> # Bureau / Office: 514-284-2020 x 246
>>
>> Email: s <http://firstname.lastname>tas.kobzar at modulis.ca
>>
>> https://www.modulis.com
>>
>>   <https://www.modulis.com/es-url-001>
>>
>>
>>  _______________________________________________
>> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>>
>>
>
>
>  --
>
> Stas Kobzar
>
> Developeur VoIP / VoIP Developer
>
> ___________________
>
> Modulis.ca Inc.
>
> # Bureau / Office: 514-284-2020 x 246
>
> Email: s <http://firstname.lastname>tas.kobzar at modulis.ca
>
> https://www.modulis.com
>
>   <https://www.modulis.com/es-url-001>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>

-- 

Stas Kobzar

Developeur VoIP / VoIP Developer

___________________

Modulis.ca Inc.

# Bureau / Office: 514-284-2020 x 246

Email: s <http://firstname.lastname>tas.kobzar at modulis.ca

https://www.modulis.com

<https://www.modulis.com/es-url-001>
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