[OpenSIPS-Users] Opensips : Diaglog Topology hidding and ACK Loop

[Bogdan-Andrei Iancu]

Hi,

the fix was done, thanks to Vlad, and included in the 1.8.2 release - 
please update your 1.8 checkout and test again.

Best regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com


On 11/01/2012 03:28 PM, Bogdan-Andrei Iancu wrote:
> Hi Pierre-Yves,
>
> Thanks for the detailed report - indeed, it seems to be a problem with 
> the dialog matching (for sequential request) when having topology 
> hiding in combination with spiraling (as your call goes twice through 
> opensips with topo hiding).
> We will work on a patch as fast as possible (the fix was identified).
>
> Regards,
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 10/31/2012 04:59 PM, Pierre-Yves Marche wrote:
>> Hello,
>>
>> I'm facing an issue of ACK Looping using opensips.
>>
>> the configuration is the following :
>> - Opensips v1.8.1 (same problem with 1.7.2).
>>   - using dialog "topology hidding" feature.
>>   - using 2 @IPs (one to reach customers, one to reach SIP Platform) 
>> (mhomed=yes)
>>
>>
>> Customer1/2 <--->Opensips (topology hidding) <----> SIP Platform
>>
>> The call flow is the following: Customer1 call Customer2, both are 
>> connected on the same Opensips
>> (when Customer1 and Customer2 are located on different opensips, no 
>> problems)
>> Customer1 <-->opensips <--->SIP Platform <-->opensips <-->Customer2
>>
>>
>> INVITE/180/200 sequence is working well.
>>
>> But the ACK of the 200 OK is looping between Customer2 -->Opensips 
>> -->SIP Plateform -->*Opensips -->SIP Platform--->Opensips*... instead 
>> of doing directly
>> Customer2--->Opensips --->SIP Plateform -->Opensips -->Customer1
>>
>>
>> Attached, a network capture taken on opensips server.
>>
>>
>> I had a look at "dlg_list", 2 dialogs are created for this call. 
>> Might be a problem with did matching ? I tested with
>> modparam("dialog", "dlg_match_mode", 0) and
>> modparam("dialog", "dlg_match_mode", 2)
>>
>>
>> Could someone help me fixing the issue ? Do you have some hints of 
>> the root cause of issue ?
>>
>>
>> Regards,
>> Pierre-Yves
>>
>>
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>
>
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