[SR-Users] TCP connection select problem
Daniel-Constantin Mierla
miconda at gmail.com
Thu Mar 31 18:08:59 CEST 2016
Finally, after releasing Kamailio 4.4.0, I got some time to look at the
sip trace you sent me. It is only from port 8000 to outside. I need to
see also the traffic towards the internal network. Seeing only what is
sent out doesn't help, because I need to see what kamailio receives from
internal network to be sent out.
You can use ngrep to capture on many ports and devices, like:
ngrep -d any -qt -O /tmp/sip-trace.pcap -W byline "sip" port 5060 or
port 8000
Send me the new trace with traffic on both sides to be able to
investigate properly.
Cheers,
Daniel
On 23/03/16 15:06, 张顺通 wrote:
> have a nice trip, :).
>
> 2016-03-23 19:23 GMT+08:00 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>:
>
> Had to go in a trip -- will look at it when I get the first chance.
>
> Daniel
>
>
> On 23/03/16 11:53, 张顺通 wrote:
>> Have provided Callid, thanks.
>>
>> register callid
>> 2bbadd72-d733-434e-bd06-45d9ddb5289b
>> a7fa5d8f-1e46-4605-9a6e-08751bc75fee
>>
>> call
>> 626fec11-684b-1234-d0b9-ecf4bbde9ef8
>>
>> 2016-03-21 18:34 GMT+08:00 张顺通 <shuntongzhang at gmail.com
>> <mailto:shuntongzhang at gmail.com>>:
>>
>> Have provided Callid, thanks.
>>
>> register callid
>> 2bbadd72-d733-434e-bd06-45d9ddb5289b
>> a7fa5d8f-1e46-4605-9a6e-08751bc75fee
>>
>> call
>> 626fec11-684b-1234-d0b9-ecf4bbde9ef8
>>
>> 2016-03-21 16:45 GMT+08:00 Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>> 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://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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