[SR-Users] Received parameter on Via

Daniel-Constantin Mierla miconda at gmail.com
Tue Sep 29 12:28:19 CEST 2020

Typically received parameter to Via is added when the IP address in that
header is different than the source IP of the request.


On 29.09.20 12:06, Duarte Rocha wrote:
> Thank you for your answers.
> I have a old SBC with opensips and it always adds received to Via.
> However, in my Kamailio it only adds in NAT scenarios. I would like to
> understand why that happens. 
> A segunda, 28/09/2020, 17:35, Duarte Rocha <duarterocha91 at gmail.com
> <mailto:duarterocha91 at gmail.com>> escreveu:
>     Greetings, 
>     When NAT is detected in my Kamailio, the proxy add the parameter
>     "received" to the Via header which includes the source IP.
>     What is the mechanic or function responsible for this behaviour?
>     Does it come from the NATHELPER module?
>     Best Regards,
> _______________________________________________
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Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla

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