[SR-Users] Kamailio sending response to source IP and port from Via ?

[Chaigneau, Nicolas]

Thanks again !



So if I want the reply to be sent to the source IP address and port, I have to configure :

reply_to_via=0
force_rport=1

And if I want the reply to be sent to the Via IP address and port, I need :

reply_to_via=1
force_rport=0

If I configure nothing, the default is a mix of the two : reply sent to Via IP address but source port.

It's working... but it's a bit confusing. ^^


Regards,
Nicolas.

-----Message d'origine-----
De : sr-users <sr-users-bounces at lists.kamailio.org> De la part de Alex Balashov
Envoyé : jeudi 27 octobre 2022 19:17
À : Kamailio (SER) - Users Mailing List
Objet : Re: [SR-Users] Kamailio sending response to source IP and port from Via ?

***This mail has been sent by an external source***

That’s controlled by this function. :-)

https://www.kamailio.org/wiki/cookbooks/5.4.x/core#force_rport1

And its cousin, the global parameter (on the same docs page):

https://www.kamailio.org/wiki/cookbooks/5.4.x/core#force_rport

— Alex

> On Oct 27, 2022, at 12:54 PM, Chaigneau, Nicolas <nicolas.chaigneau at capgemini.com> wrote:
> 
> Thanks Alex.
> I didn't have this parameter "reply_to_via" set.
> 
> The documentation says that this parameter controls the IP address to which the reply is sent.
> 
> But what of the port ? it seems the port from the "Via" is always used to send the reply.
> 
> 
> -----Message d'origine-----
> De : sr-users <sr-users-bounces at lists.kamailio.org> De la part de Alex 
> Balashov Envoyé : jeudi 27 octobre 2022 18:35 À : Kamailio (SER) - 
> Users Mailing List Objet : Re: [SR-Users] Kamailio sending response to 
> source IP and port from Via ?
> 
> ***This mail has been sent by an external source***
> 
> Ni Nicolas,
> 
> This behaviour is regulated by:
> 
> https://www.kamailio.org/wikidocs/cookbooks/5.6.x/core/#reply_to_via
> 
> — Alex
> 
>> On Oct 27, 2022, at 12:33 PM, Chaigneau, Nicolas <nicolas.chaigneau at capgemini.com> wrote:
>> 
>> Hello,
>> 
>> 
>> I’m using Kamailio in stateless mode to send redirect responses.
>> I’ve noticed that the responses are sent to the packet source IP address, and to the port found in the Via header.
>> 
>> I’m a bit confused. I was expecting the response to be sent to the address and port found in the Via header.
>> 
>> Is it the expected behaviour ?
>> 
>> 
>> I’m using Kamailio 5.5.2.
>> 
>> 
>> Thanks for your help !
>> 
>> Regards,
>> Nicolas.
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