Hello,

are you sure that the Route is like that? The lr parameter and received should be between angle brakets <> along with the sip uri.

Maybe you should paste here the full REGISTER sent to sip server after adding the path as well as the INVITE received later. You can replace the IP addresses that are sensitive for you, but keel everything else as it is in order to see if there is something wrong in the headers.

Btw, the To header has nothing to do with routing, the R-URI will be also relevant in this case.

Is kamailio listening directly on a public ip?

Cheers,
Daniel


On 20.07.17 17:18, Iskren Hadzhinedev wrote:

Hello,

I have a kamailio proxy in front of FreeSWITCH.

Whenever FreeSWITCH initiates the dialog (e.g. sends an INVITE), kamailio doesn't use the 'received' parameter and it forwards to the RFC1918 IP address. The initial INVITE from FreeSWITCH has the following headers:

To: <sip:1001@192.168.1.200:5063>
Route: <sip:1.2.3.4>;lr;received=sip:5.6.7.8:5063

Where 1.2.3.4 is the kamailio public IP and 5.6.7.8 is the public IP of the UAC behind NAT.
I have modparam("path", "use_received", 1) in my config file and to my understanding that should be sufficient to route to the proper IP, but kamailio keeps sending INVITEs to 192.168.1.200.

Can anyone tell me what am I missing?
Thanks!

Kind regards,
Iskren


_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users


-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com