[OpenSIPS-Users] Double via in MI generated NOTIFY

[Bogdan-Andrei Iancu]

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 Developer
http://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 
> <mailto:sip%3A7037 at 10.130.8.225> . . '"From: <sip:7037 at voip.etsmtl.ca 
> <mailto:sip%3A7037 at voip.etsmtl.ca>>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: 
> <sip:7037 at voip.etsmtl.ca <mailto:sip%3A7037 at voip.etsmtl.ca>>\r\nEvent: 
> check-sync\r\n"'
>
> When I use IP address in RURI (sip:7037 at 10.130.8.225 
> <mailto:sip%3A7037 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 
> <mailto:sip%3A7037 at campus.voip.etsmtl.ca>) and my command looks like this:
> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at campus.voip.etsmtl.ca 
> <mailto:sip%3A7037 at campus.voip.etsmtl.ca> . . '"From: 
> <sip:7037 at voip.etsmtl.ca 
> <mailto:sip%3A7037 at voip.etsmtl.ca>>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: 
> <sip:7037 at voip.etsmtl.ca <mailto:sip%3A7037 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 <mailto:sip%3A7037 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 
> <mailto:sip%3A7037 at campus.voip.etsmtl.ca>.
> From: <sip:7037 at campus.voip.etsmtl.ca 
> <mailto:sip%3A7037 at campus.voip.etsmtl.ca>>;tag=734c62bd59eb9f33d3e6313898450dd1.
> CSeq: 10 NOTIFY.
> Call-ID: 693206c572f70ff6-19332 at 10.130.8.20 
> <mailto: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
>
> ___________________
>
>
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>
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>
> Email: s <http://firstname.lastname>tas.kobzar at modulis.ca
>
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>
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>
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