[SR-Users] Multi-homed Kamailio Modifies ACK

[SamyGo]

Update, manually modifying the To-Domain in ACK has fixed this, I saved the
key value pair Call-ID/To-Domain of 200OK from CISCO and for corresponding
ACK with same Call-ID modified the $td

same problem appeared in BYE for the call, again same fix by modifying the
To-Domain for the same Call-iD in subsequent BYE.

QUESTION: Was this supposed to happen with mhomed Kamailio ? I have not
observed this scenario with any provider/gateway other than this CISCO gw!

BR,
Sammy.




On Tue, May 12, 2015 at 12:24 PM, SamyGo <govoiper at gmail.com> wrote:

> Yeah sure, attached here is the trace from the CISCO logs. Not in pcap
> format.
> Also this is the flow of the call.
>
>  +-----------+      +--------------+   +------------------+
> |Provider |+--------> +Kamailio +------>+CISCO IAD  |
> +-----------+      +--------------+   +-----------------+
>                 | ^
>                   v |
>               +-----------+
>                 |Asterisk |
>                 +-----------+
>
> Thanks and best Regards,
> --
>
> On Tue, May 12, 2015 at 11:50 AM, Alex Balashov <abalashov at evaristesys.com
> > wrote:
>
>> Is the UAC in this case a 2543 endpoint by chance? Can you send a
>> complete SIP trace of the entire setup?
>>
>>  --
>> Alex Balashov | Principal | Evariste Systems LLC
>> 303 Perimeter Center North, Suite 300
>> Atlanta, GA 30346
>> United States
>>
>> Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>
>> Sent from my BlackBerry.
>>   *From: *SamyGo
>> *Sent: *Tuesday, May 12, 2015 11:46
>> *To: *SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) -
>> Users Mailing List
>> *Reply To: *Kamailio (SER) - Users Mailing List
>> *Subject: *[SR-Users] Multi-homed Kamailio Modifies ACK
>>
>> Hi all,
>>
>> I'm having a scenario where I'm sending call to CISCO IAD2431. The call
>> establishes with 200OK from CISCO and Kamailio sends back modified ACK.
>> Cisco at this points gives out an error and sends 200OK again, Kamailio
>> replies with ACK, and this cycle goes on until the call drops.
>>
>> Here is the error from CISCO:
>>
>> Failed FROM/TO Request check
>>   old_from: "Test Phone" <sip:+14432232221 at 192.168.1.106>;tag=as370915fc
>>   old_to:   <sip:+14444812211 at sip.iamip.com:5041>;tag=9FEC572E-100F
>>   new_from: "Test Phone" <sip:+14432232221 at 192.168.1.106>;tag=as370915fc
>>   new_to:   <sip:+14444812211 at 192.168.1.244:5041>;tag=9FE
>>
>> I've
>> #auto_aliases=no
>>
>> and,
>> listen=udp:44.33.22.11:5041
>> listen=udp:192.168.1.244:5041
>>
>> Kamailio sends INVITE through the Public IP to the CISCO gw, but decides
>> to change the ACK header.
>>
>> Any advise please.
>>
>> Best Regards,
>> Sammy.
>>
>>
>>
>> _______________________________________________
>> 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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