[SR-Users] Minimal configuration without database support

[Daniel-Constantin Mierla]

Each hop in the path of a SIP request has to add a Via header with its 
own address.

If you want a different ip address in VIA than the local socket of 
kamailio, then look at set_advertise_address() from core cookbook.

Cheers,
Daniel

On 26/08/14 12:31, Eugene Prokopiev wrote:
> Now I need to hide local topology: rewrite public ip addresses in
> sip/sdp headers with internal kamailio address (10.10.10.7) for
> incoming requests, rewrite internal softswitch address with public
> kamailio ip address (10.7.7.7) and forward rtp packets. So, I have
> rtpproxy running:
>
> $ ps aux | grep rtpproxy
> rtpproxy 12568 97.8  0.0  98588   988 ?        Ssl  13:57  14:02
> /usr/bin/rtpproxy -p /var/run/rtpproxy.pid -u rtpproxy -F -s
> udp:127.0.0.1 22222 -l 10.7.7.7 10.10.10.7 -d DBUG LOG_LOCAL0 -u
> rtpproxy
>
> My kamailio configuration looks like:
>
> loadmodule "mi_fifo.so"
> loadmodule "kex.so"
> loadmodule "tm.so"
> loadmodule "sl.so"
> loadmodule "pv.so"
> loadmodule "nathelper.so"
> loadmodule "rtpproxy.so"
>
> modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
>
> modparam("nathelper", "received_avp", "$avp(RECEIVED)")
>
> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:22222")
>
> route {
>    force_rport();
>    if (nat_uac_test("19")) {
>      if (method=="REGISTER") {
>        fix_nated_register();
>      } else {
>        fix_nated_contact();
>      }
>    }
>    rtpproxy_manage("cwei");
>    $du = "sip:10.10.10.50:5060;transport=udp";
>    forward();
> }
>
> onreply_route {
>    rtpproxy_manage("cwie");
>    fix_nated_contact();
>    return(1);
> }
>
> I see additional Via header with internal kamailio address in
> forwarded REGISTER, but all other headers contains public ip
> addresses.
>
> What is wrong in my configuration and how to fix it?
>

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA