Greetings,
I have a Kamailio that is hosted on multiple IP's. Each client connects to an IP and there is another IP that communicates with the PSTN.
The problem is that I don't want any client "seeing" any IP besides his. If the client (connected to kamailio's IP 1.1.1.1) receives an request coming from the PSTN (connected to Kamailio's IP 2.2.2.2) , it will have 2.2.2.2 on the R-URI, To Header,etc.
Is there a method to ensure kamailio will manipulate the packet and use the correct IP ? Currently i'm directly changing the R-URI and To Header, but I don't if it's the correct approach to this.
I would also like to know the best way to do those changes right before the packet leaves Kamailio. I know that OnSend route doesn't allow changes in the buffer. I tried Branch routes but not every request goes through that.
Thanks for the help.
Cheers.