[OpenSIPS-Users] B2Blogic, 200 OK issues

[Bogdan-Andrei Iancu]

Oh, I see - this is not a bug in b2b, it is more a scripting issue.

Regards,
Bogdan

On 03/28/2012 01:38 PM, Nick wrote:
>      A        B2B        B
> 1. --------->  --------->  INVITE
> 2.<--------<--------- Trying/Ringing
> 3.<--------<--------- 200 OK
> 4. --------->  --------->  ACK
>
> "A" has external ip-address.
> "B" is behind the NAT.
>
> In 200 OK "B" sends its local contact, like "192.168.0.1".
> So, B2B sends ACK from itself to "B" to "192.168.0.1" address instead
> of external address.
>
> It's okay because b2b knows nothing about NAT.
> But with solution below I solved this problem.
>
> --
> Nick
>
>
> 2012/3/28 Bogdan-Andrei Iancu<bogdan at opensips.org>:
>> Nick,
>>
>> Considering the scenario  A ->  b2b ->  B
>>
>> in the so called bogus contact ( in the 200 OK reply from b2b to A) you see
>> the contact of B instead of the contact of b2b ?
>>
>> Regards,
>> Bogdan
>>
>>
>> On 03/28/2012 01:00 PM, Nick wrote:
>>> I don't know exactly, it is bug or it is not bug.
>>>
>>> I solved the problem this way (in global on_reply route):
>>>
>>> onreply_route {
>>>      if ([here i filter only b2b replies]) {
>>>           if (nat_uac_test("1")) fix_nated_contact();
>>>           if ( (!search("^Content-Length:[ ]*0"))&&
>>> (nat_uac_test("8")) ) fix_nated_sdp("10");
>>>      }
>>> }
>>>
>>> So, this commands executes before b2b_logic module and everything works
>>> well.
>>>
>>> No NAT on this host (it processed on another proxies), but nathelper
>>> only in onreply_route used.
>>>
>>> --
>>> Nick
>>>
>>>
>>> 2012/3/28 Bogdan-Andrei Iancu<bogdan at opensips.org>:
>>>
>>>> Hi Nick,
>>>>
>>>> I noticed you closed you bug report in this - was you original report
>>>> invalid or ?
>>>>
>>>> Regards,
>>>> Bogdan
>>>>
>>>>
>>>> On 03/27/2012 07:38 AM, Nick wrote:
>>>>> B2Blogic module changes Contact header in INVITE and other SIP
>>>>> requests, but doesn't change it in 200 OK reply.
>>>>> The result is ACK from UAC goes to host from untouched Contact header,
>>>>> but I think that Contact should be substituted by b2blogic module to
>>>>> opensips contact, then ACK will go to right destination.
>>>>>
>>>>> --
>>>>> Nick
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opensips.org
>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>> --
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS Founder and Developer
>>>> http://www.opensips-solutions.com
>>>>
>>
>> --
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developer
>> http://www.opensips-solutions.com
>>


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