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

[Rudy]

Oops, incomplete message.

Bogdan,

 Glad you are looking into this, I've run into similar loops.

Pierre,

 You mentioned you are using 2 IP addresses. Did you enable double rr?

Thanks in advance,
--Rudy
Dynamic Packet
Toll-Free: 888.929.VOIP ( 8647 )


On Thu, Nov 1, 2012 at 9:57 AM, Rudy <rudy at dynamicpacket.com> wrote:

> Bogdan,
> I have seen this happen before also, glad
> Thanks in advance,
> --Rudy
> Dynamic Packet
> Toll-Free: 888.929.VOIP ( 8647 )
>
>
>
> On Thu, Nov 1, 2012 at 9:28 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>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 Developerhttp://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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>
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