[OpenSIPS-Users] Routing to Proxy Issue

[Nathaniel L Keeling III]

Thanks for the response. What I am trying to do is to have the first 
proxy route the request to the second proxy server that will actually 
process the request. In this case I have another opensips server that I 
want to just handle register requests. This proxy server would then send 
the replies back to the client and not the first proxy server. Is this 
the idea way of performing this functionality? I was trying to separate 
some functions to separate sip servers ( a sip server for registrations, 
another sip server for pstn gateway, etc) but have a central point of entry.

Thanks

Nathaniel


On 3/14/13 11:55 AM, Bogdan-Andrei Iancu wrote:
> Hi Nathaniel,
>
> According to SIP RFC, replies are following the same path as requests 
> (in revert order, of course) - this back routing is done based on VIA 
> hdr (added in requests, consumed from replies).
>
> if you want to avoid opensips to add the VIA hdr (so, to be skipped by 
> replies), use the send() function for relaying the requests - be 
> careful this is a stateless function, so no failure_route !
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
>
> On 03/14/2013 09:30 AM, Nathaniel L Keeling III wrote:
>> Hello,
>>
>> I would like to know if this routing is possible and if so how. I 
>> have a scenario where I have a opensips proxy that I want to use just 
>> to send requests to other opensips proxy witch would then process the 
>> request. Here is the scenario:  client  --> p1 --> p2 --> client --> 
>> p2. I have been able to route to proxy 2 but the replies are still 
>> being routed back via proxy 1 then to the client. I was hoping to 
>> send the replies directly to the client and not back thru the first 
>> proxy. Is this possible? I am currently using the dispatcher module 
>> to send the requests to the second proxy. I also noticed that the SIP 
>> packets have a VIA header of the first proxies IP address when it 
>> reaches the second proxy. I thought the record_route was causing 
>> this, so I moved it after I send the request to the second proxy. 
>> Here is a small snipet of my code:
>>
>> if (is_method("REGISTER")) {
>>    if (!ds_select_dst("2", "3")) {
>>             sl_send_reply("503", "Rawr!!");
>>    };
>>    t_relay();
>> }
>>
>>
>> Thanks
>>
>> Nathaniel
>>
>>
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>>
>
>