[OpenSIPS-Users] ACK message loops while behind firewall

[Shehzad]

I am sending calls from SIPP and Asterisk (as Caller gateway).
SIPP calls are creating ACK message to loop locally on Opensips server as
described in previous post.
But when Opensips receive ACK message from Asterisk Caller, It does not
route it back to terminator thus terminator re-transmit 200OK. 
I am attaching SIP trace (which is take on firewall system)
http://n2.nabble.com/file/n2845440/Ast.Noackback.200.retrans.log
Ast.Noackback.200.retrans.log 

Does any body has faced such issue. Let me know what should i try to solve
this and set Opensips to handle Asterisk calls properly behind firewall?
Feel free to comment if any.

Thanks,
msp

Shehzad wrote:
> 
> Hello,
> I have attached a whole trace as below. 
>  http://n2.nabble.com/file/n2818688/MAILING_10.10.2.5_ACK_sipp.log
> MAILING_10.10.2.5_ACK_sipp.log 
> 
> Some IP as referenced in the above trace are as below:
> <Caller_IP> : IP address of Caller Gateway
> <Opensips_local_IP> : IP address of Opensips Server
> <Firewall_Public_IP> : IP address of Firewall 
> <Called_IP> : IP address of provider
> 
> Thanks,
> msp
> 
> 
> Bogdan-Andrei Iancu wrote:
>> 
>> Hi,
>> 
>> You need to post the whole trace (from the begining of the calls) to see 
>> what the problem is.
>> 
>> Regards,
>> Bogdan
>> 
>> msp wrote:
>>> Hi all,
>>>
>>> My Opensips server is behind firewall. All the messages comes at port 
>>> 5060 on firewall are routed to Opensips Server. Then calls are routed 
>>> based on LCR. See below:
>>>
>>> Caller      ===>  |               |
>>>                          | Firewall   |<====> Opensips Server
>>> Callee     <===  |                |
>>>
>>> Currently calls are being routed properly from caller server to 
>>> callee, but when Caller sends ACK in respond to callee 's 200-OK, 
>>> Opensips doesn't route it back to Callee, and ACK message is sent to 
>>> Opensips Server itself which creates loop. At the end Opensips server 
>>> responds to Caller "483-Too many hops" as maximum hops reaches.
>>>
>>> Have any body done anything like this before. Let me know what should 
>>> be missing or possible fault.
>>>
>>> thanks,
>>> msp.
>>>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>   
>> 
>> 
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> 
>> 
> 
> 

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