[OpenSIPS-Users] Presence over TCP with NAT, possible bug

Thu Feb 26 16:37:17 CET 2015

Hi

Yes I did that, and also with EXTRA_DEBUG too - I should be able to grab
the logs from the time it happened.

Is there any particular item you want me to look for?

On 23 February 2015 at 09:45, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:

>  Hi Pete,
>
> Do you have any chance to run in debug mode to get some extra info ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 23.02.2015 10:49, Pete Kelly wrote:
>
> Hi Bogdan
>
>  As I said in my original post, I tried that already with no success.
>
> On 12 February 2015 at 19:11, Bogdan-Andrei Iancu <bogdan at opensips.org>
> wrote:
>
>>  Hi Pete,
>>
>> Try setting the tcp_accept_aliases global param to 1:
>>     tcp_accept_aliases = 1
>>
>> Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>
>>   On 12.02.2015 11:24, Pete Kelly wrote:
>>
>> Bogdan
>>
>>  In fact the TCP connection stays open (I checked with netstat on port
>> 28733 being open on the remote host).
>>
>>  I think the problem is opensips is opening (or is supposed to open)
>> 5060 on the remote and this is failing? I think it may be looking for an
>> already existing connection to 5060?
>>
>>  Pete
>>
>> On 11 February 2015 at 20:11, Bogdan-Andrei Iancu <bogdan at opensips.org>
>> wrote:
>>
>>>  Hi Pete,
>>>
>>> If the TCP connection (the one used to received the SUBSCRIBE from end
>>> user) went down, when sending an in-dialog NOTIFY, OpenSIPS will refuse to
>>> open a new TCP connection (the policy is to accept connection, not to open
>>> connections towards end-users).
>>>
>>> Can you check if this is your case ?
>>>
>>> Regards,
>>>
>>> Bogdan-Andrei Iancu
>>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>>
>>>  On 11.02.2015 12:50, Pete Kelly wrote:
>>>
>>>   I have been experimenting recently with Presence over TCP and noticed
>>> sometimes OpenSIPS fails to send a NOTIFY for a recent SUBSCRIBE, with a
>>> tcp_send error in the logs.
>>>
>>>  I did some research and found an old issue which seems to be similar
>>> to this as the inbound SUBSCRIBE TCP connection is on a high port, yet the
>>> NOTIFY is to go to port 5060.
>>>
>>>  http://lists.opensips.org/pipermail/users/2013-May/025922.html
>>>
>>>  The fix here is to set tcp_accept_aliases =1
>>>
>>>  I tried this fix and it did not resolve the issue. Looking in the
>>> source code it seems OpenSIPS may be trying to reuse an old/existing TCP
>>> connection and is failing to find one - it does seem to be slightly
>>> intermittent too. Sometimes (very rarely) it will work, and it seems to be
>>> related to how many other TCP connections are open at the moment but I have
>>> found it very very difficult to pin down. In the end I got round it by
>>> looping the TCP SUBSCRIBE back to UDP and the OpenSIPS then produces a
>>> NOTIFY/UDP no problem. This solution is a bodge and I would be interested
>>> to know if the failure to tcp_send is a bug or something I can detect and
>>> handle in the config somehow?
>>>
>>>  Using OpenSIPS 1.11 latest, in EXTRA_DEBUG mode this is the error that
>>> is produced:
>>>
>>>  [19361]: ERROR:tm:msg_send: tcp_send failed
>>> [19361]: ERROR:tm:t_uac: attempt to send to 'sip:111.111.8.146:5060;transport=tcp;lr'
>>> failed
>>>
>>>  This is the inbound SUBSCRIBE and 200OK... I am simply dealing with
>>> this by calling handle_subscribe('1');
>>>
>>>  T 2015/02/10 12:52:09.324134 111.111.8.146:28733 -> 192.168.0.113:5060
>>> [AP]
>>> SUBSCRIBE sip:user203 at test-domain.com SIP/2.0.
>>> Via: SIP/2.0/TCP 111.111.8.146:5060
>>> ;egress-zone=DNS;branch=z9hG4bK5c628151ab895c5f2f45ed8bdafeda0d24504147.1569b0b8efc74f7daf3767cc97d0b38e;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a;rport.
>>> Via: SIP/2.0/TLS 10.15.20.113:54999
>>> ;branch=z9hG4bKfd5e7b1424014fc8de23205f0de3873e.1;received=188.39.51.2;rport=54999;ingress-zone=DefaultSubZone.
>>> Call-ID: a1922a193e1b6057 at 10.15.20.113.
>>> CSeq: 303 SUBSCRIBE.
>>> Contact: <sip:pkelly at test-domain-2.com
>>> ;gr=urn:uuid:683f87a0-e026-5f0a-b86b-58139361c7a4>.
>>> From: <sip:pkelly at test-domain-2.com>;tag=359dbb1cb104d434.
>>> To: <sip:user203 at test-domain.com>.
>>> Max-Forwards: 15.
>>> Record-Route: <sip:111.111.8.146:5060;transport=tcp;lr>.
>>> Record-Route: <sip:111.111.8.146:5061;transport=tls;lr>.
>>> Record-Route: <sip:188.39.51.2:54999
>>> ;transport=tls;apparent=remove;ds;lr;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a>.
>>> User-Agent: Test.
>>> Expires: 3600.
>>> Event: presence.
>>> Accept: application/pidf+xml.
>>> P-Asserted-Identity: <sip:pkelly at test-domain-2.com>.
>>> X-TAATag: 6ed63f01-3191-4a1f-b2a2-4121fb834f07.
>>> Content-Length: 0.
>>> .
>>>
>>>
>>>  T 2015/02/10 12:52:09.326218 192.168.0.113:5060 -> 111.111.8.146:28733
>>> [AP]
>>> SIP/2.0 200 OK.
>>> Via: SIP/2.0/TCP 111.111.8.146:5060
>>> ;received=111.111.8.146;egress-zone=DNS;branch=z9hG4bK5c628151ab895c5f2f45ed8bdafeda0d24504147.1569b0b8efc74f7daf3767cc97d0b38e;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a;rport=28733.
>>> Via: SIP/2.0/TLS 10.15.20.113:54999
>>> ;branch=z9hG4bKfd5e7b1424014fc8de23205f0de3873e.1;received=188.39.51.2;rport=54999;ingress-zone=DefaultSubZone.
>>> Call-ID: a1922a193e1b6057 at 10.15.20.113.
>>> CSeq: 303 SUBSCRIBE.
>>> From: <sip:pkelly at test-domain-2.com>;tag=359dbb1cb104d434.
>>> To: <sip:user203 at test-domain.com
>>> >;tag=e3eb1f19b04f8e78afd28f643f416b5f-9be8.
>>> Record-Route: <sip:111.111.8.146:5060;transport=tcp;lr>.
>>> Record-Route: <sip:111.111.8.146:5061;transport=tls;lr>.
>>> Record-Route: <sip:188.39.51.2:54999
>>> ;transport=tls;apparent=remove;ds;lr;proxy-call-id=345dee99-7aca-44b4-bf5f-fb1f2e57774a>.
>>> Expires: 3600.
>>> Contact: <sip:sa at 222.222.200.79:5060;transport=tcp>
>>> <sip:sa at 222.222.200.79:5060;transport=tcp>.
>>> Server: Test.
>>> Content-Length: 0.
>>>
>>>
>>>  _______________________________________________
>>> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>
>>>
>>>
>>
>>
>
>
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