[SR-Users] TCP connection select problem
Daniel-Constantin Mierla
miconda at gmail.com
Mon Mar 21 09:45:24 CET 2016
Quickly looked at the file and I see several calls there. All of them
are exposing the issue? Or can you give the call-id of the call that
didn't work fine? I don't want to lose time looking at all the calls,
knowing one that is wrong is enough...
Cheers,
Daniel
On 21/03/16 03:50, 张顺通 wrote:
> I Send you pcap Separatly.
>
> Sorry, can't send pcap to mail list.
>
> Thanks
>
> 2016-03-15 16:08 GMT+08:00 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>:
>
> Can you attach a pcap with such situation, which includes the
> REGISTER, replies and the call showing the issue?
>
> Cheers,
> Daniel
>
>
> On 15/03/16 03:36, 张顺通 wrote:
>> sorry，I have not expressed clearly.
>>
>> kamailio will recive two REGISTER at a time.In first 200 OK to
>> REGISTER, Server will tell Linphone the Linphone Nat Ip and Port.
>> like this:
>> Via:SIP/2.0/TCP
>> 30.9.2.1:50691;received=42.1.7.1;alias;branch=z9hG4bK.kmhC2L9Rf;rport=33746
>> and Linphone will know it's outside nat Ip and port, Linphone
>> while use this Ip and Port in second REGISTER.
>> like this:
>> REGSITER
>> Contact:<sip: 42.1.7.1:33746;transport=tcp>
>>
>> So kamailio server know Linphone's nated ip and port and save in
>> DB(contact field).
>>
>>
>> my question is KA_EDGE receive sip from KA_REGISTER already have
>> right nat ip and port like
>> INVITE 123456 at 42.1.7.1:33746;transport=tcp SIP/2.0
>> but KA_EDGE do not send this sip msg to 42.1.7.1:33746
>> <http://42.1.7.1:33746>, it send to another nat ip and port(other
>> Linphone's ip and port behind same NAT layer)
>>
>>
>> 2016-03-14 21:42 GMT+08:00 Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>> Indeed, the ports are different, that's why adding received
>> is important in this situation.
>>
>> While local ip and local port are in most of the cases also
>> unique for devices behind a nat router, it is not 100% true,
>> because there can be many layers of NATs, which can result in
>> seeing same local ip/port for devices.
>>
>> Cheers,
>> Daniel
>>
>>
>> On 14/03/16 13:06, 张顺通 wrote:
>>> source IP is same, But port is different。
>>> like INVITE sip:Linphone_nat_Ip:Linphone_nat_port;tcp;
>>>
>>>
>>> 2016-03-14 18:26 GMT+08:00 Daniel-Constantin Mierla
>>> <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>>
>>> Adding received information to Path helps to identify
>>> properly the connection to be used. Because both devices
>>> are behind the same NAT, practically they show the same
>>> source IP when they send traffic to server.
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 14/03/16 04:05, 张顺通 wrote:
>>>> KA_EDGE have two IP，external public IP and internal IP.
>>>> I add modparam("path", "use_received", 1) and replace
>>>> add_path() to add_path_received() in edge server.
>>>> add modparam("registrar", "path_use_received", 1)
>>>> in KA_REGISTER server.
>>>>
>>>> DB path info <sip:aD15fXXXXXXXXXXXXeEpfqRY=@10.10.10.11
>>>> <http://10.10.10.11>;lr;ob>
>>>> --> <sip:10.10.10.11;lr;received=sip:42.129.1.1:43640%3Btransport%3Dtcp>
>>>>
>>>> This kind of situation very little，It is not easy to
>>>> reappear.
>>>> Can you tell me why this situation happen? and Why this
>>>> change can solve the problem?
>>>>
>>>> Thanks for Your Time.
>>>>
>>>>
>>>>
>>>> 2016-03-09 22:37 GMT+08:00 Daniel Tryba
>>>> <d.tryba at pocos.nl <mailto:d.tryba at pocos.nl>>:
>>>>
>>>> On Wed, Mar 09, 2016 at 10:05:11PM +0800, 张顺通 wrote:
>>>> > Yes，Use Path in DB. like
>>>> <sip:XXxXXXXXXXXXX/ogxZg=@10.10.232.29
>>>> <http://10.10.232.29>;lr;ob>
>>>> > KA_REGISTER wile the path info in DB.
>>>>
>>>> Should not be a problem if you use the use_received
>>>> options in
>>>> http://kamailio.org/docs/modules/stable/modules/path.html#idp135216
>>>> and
>>>> http://kamailio.org/docs/modules/stable/modules/registrar.html#registrar.p.path_use_received
>>>>
>>>> (and actually add the source as received on the
>>>> kamailio edge server).
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) -
>>>> sr-users mailing list
>>>> sr-users at lists.sip-router.org
>>>> <mailto:sr-users at lists.sip-router.org>
>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> sr-users at lists.sip-router.org
>>>> <mailto:sr-users at lists.sip-router.org>
>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>> --
>>> Daniel-Constantin Mierla
>>> http://www.asipto.com
>>> http://twitter.com/#!/miconda
>>> <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
>>> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) -
>>> sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> <mailto:sr-users at lists.sip-router.org>
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>
>> --
>> Daniel-Constantin Mierla
>> http://www.asipto.com
>> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
>> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
>>
>>
>
> --
> Daniel-Constantin Mierla
> http://www.asipto.com
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
>
>
--
Daniel-Constantin Mierla
http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
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