Typically received parameter to Via is added when the IP address in that header is different than the source IP of the request.
Cheers, Daniel 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 <[email protected] > <mailto:[email protected]>> 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, > > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- 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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