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?
--
WBR,
Eugene Prokopiev
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