[SR-Users] Kamailio Via: header issue

Fri May 27 12:22:30 CEST 2016

Hi Daniel,

thanks for support, of course we'll plan to go over 4.4.x release and
after that we'll test very well topos module.
We'll give back to the specific list all datas of topos.

Cheers,
Laura

Il 27/05/16 11:31, Daniel-Constantin Mierla ha scritto:
>
> Hello,
>
> see topos module, but that is only in 4.4 release and, again, you
> should do some tests as it is a module in its early phase of development.
>
> Cheers,
> Daniel
>
>
> On 24/05/16 15:40, Laura wrote:
>> Hi Carsten,
>>
>> you right about that.. without topoh module the branch is ok.
>>
>> I did some test and all seem to work correctly.
>>
>> I forgot to say that we used topoh for "mask" the real ip of the A-LEG
>> customer over platform, and without the topoh modules
>>
>> i can see all the real ip in the Via: records.
>>
>> Any solution for that ?
>>
>> Thanks
>>
>> Laura
>>
>>
>> Il 24/05/16 14:58, Carsten Bock ha scritto:
>>> Hi Laura,
>>>
>>> if it's just about advertising the IP, then you can simply do the following:
>>>
>>> listen=udp:10.10.10.10:5060 advertise  11.11.11.11:5060
>>> (http://www.kamailio.org/wiki/cookbooks/devel/core#listen)
>>>
>>> which will put 11.11.11.11 instead of the own, local IP.
>>>
>>> Thanks,
>>> Carsten
>>>
>>> 2016-05-24 14:40 GMT+02:00 Laura <red_dra at plugit.net>:
>>>> Hello,
>>>>
>>>>
>>>> honestly we only use the topoh modules for this
>>>>
>>>> # topoh paramiters
>>>> modparam("topoh", "mask_ip", "1.1.1.1")
>>>>
>>>> Pratically we created a cluster and we use VRRP for HA of the service.. so
>>>> we use topoh for menage the virtual IP on kamailio..
>>>>
>>>> Is there any other way we could use for stop using topoh ?
>>>>
>>>> Regards
>>>>
>>>>
>>>> Il 24/05/16 13:11, Daniel-Constantin Mierla ha scritto:
>>>>
>>>> Hello,
>>>>
>>>> the long Via branch is because of using topoh module. Do you need that?
>>>>
>>>> The alternatives would be:
>>>>
>>>>  - disable topoh module
>>>>
>>>>  - or configure the kernel to do udp defragmentation (should be default in
>>>> modern linux)
>>>>
>>>>  - or switch to tcp/tls
>>>>
>>>>  - or try to use the new topos module in 4.4 -- not that it is not well
>>>> tested and you should not go with it in production directly. Any issue
>>>> encountered with topos should be reported on kamailio project on github and
>>>> I will take care fixing them.
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>>
>>>> On 24/05/16 09:57, Laura wrote:
>>>>
>>>> Good morning list,
>>>>
>>>> I need to ask you a question about a problem we are fighting on our VoIP
>>>> platform based on Kamailio 4.3.5.
>>>> Our platform is made by more nodes over Europe countries, and we are
>>>> encountering a problem with the size of the SIP package which, exceeds
>>>> the physiological limit of about 1350 bytes.
>>>> The real problem is caused from Via: Header (inside the SIP packet)
>>>> which is added to each element of the system for transit on the call.
>>>> >From what we have analyzed, the problem is not so much due to the number
>>>> of entered Via: records but, by the fact that they contain a branch
>>>> parameter extremely long.
>>>>
>>>> Here the call flow example from CARRIER A —> Kamailio1 —> Kamailio2 —>
>>>> CARRIER B
>>>>
>>>> Extract from SIP message sent from CARRIER A to K1
>>>>
>>>> INVITE sip:999912341234 at 192.168.158.42 SIP/2.0.
>>>> Via: SIP/2.0/UDP 192.168.220.141:5060;branch=z9hG4bK49e4301c;rport.
>>>>
>>>> Extract from SIP message sent from K1 to K2
>>>>
>>>> INVITE sip:999912341234 at 192.168.127.244 SIP/2.0.
>>>> Record-Route: <sip:192.168.158.42;lr;did=194.a0f1;nat=yes>.
>>>> Via: SIP/2.0/UDP
>>>> 192.168.158.42;branch=z9hG4bK0635.7c1e97c2d5c01ea98e8d0e7fa23a3822.0.
>>>> Via: SIP/2.0/UDP
>>>> 192.168.158.42;branch=z9hG4bKsr-j4IPOlV7MGQKatycM.cuOBV4OBVLMGZfWxF-W.y6Mx1LgRWIC9gIgx4fzxj7MBP7MBVAOBF4M.1jmxuqC93X3heroEWvH9vsCFN43qd4zRj4Mlyf3l1LNSQLpx4uMx3A.
>>>>
>>>> Extract from SIP message sent from K2 to CARRIER B
>>>>
>>>> INVITE sip:999912341234 at 192.168.65.248 SIP/2.0.
>>>> Record-Route: <sip:192.168.127.244;lr;did=194.5122;nat=yes>.
>>>> Via: SIP/2.0/UDP
>>>> 192.168.127.244;branch=z9hG4bK0635.f843472880b380acde3a33732975fde9.0.
>>>> Via: SIP/2.0/UDP
>>>> 192.168.127.244;branch=z9hG4bKsr-j4IPOlV7MGQKatycW.F7MBj4OBFuzGZ4MB1LNSQLpx4uMx3AzuaVHRaYpB1JNEt736cQkBIvalaJmly6Mlj7W6Mfg.qw3leqWRMAMRKrz.rIzSPAg.pE3.Vl3.MZMBV7My**.
>>>> Via: SIP/2.0/UDP
>>>> 192.168.127.244;branch=z9hG4bKsr-j4IPOlV7MGQKatycW.F7MBj4OBFuzGZ4MB1JNEt736cQkBIvalaJmwWLORv4mK0Hot3w.jpam6t4kRWWOEWu.4eRWFQGKqfWauYEKwrSOKN7k.gWkxtMgue9mjMsg4IhkxaEkhrbW4uGjxpWPIg0.4eSWF47MRY1kUKfPlqlRxWvg9e5aKp6mxI6N4WS.BPlNRP4kIebWFudkR3loxtM.IWa.U0ZWUKWkxW0.
>>>>
>>>>
>>>> Is there anyone here with the idea how to solve this problem ?
>>>>
>>>> Best regards
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> 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://www.kamailio.org
>>>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> 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
>>>> 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
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
> -- 
> Daniel-Constantin Mierla
> http://www.asipto.com - http://www.kamailio.org
> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

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