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. This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
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@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. This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.__________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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@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@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.
This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
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@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@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@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.
This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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@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@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@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@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.
This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
-
Alex Balashov -
Chaigneau, Nicolas