Hello,
I have kamailio in local network behind NAT. Kamailio have one interface eth1 with ip 10.130.0.23
UserAgent - (internet) - (178.0.0.169)router_NAT - (LAN) - (10.130.0.23)kamailio+rtpproxy - pbx
I made two listeners:
listen=udp:[10.130.0.23:5070](http://10.130.0.23:5070/) #to pbx in lan (I don`t want to put via header with 178.0.0.169)
listen=udp:[10.130.0.23:5060](http://10.130.0.23:5060/) advertise [178.0.0.169:5060](http://178.0.0.169:5060/) #to internet (UserAgent need to get via header with 178.0.0.169 )
mhomed = 1 # I think It not useful for my case
UserAgent send Register and Invite to [178.0.0.169:5060](http://178.0.0.169:5060/), Kamailio get it on udp:[10.130.0.23:5060](http://10.130.0.23:5060/)
Kamailio Relay it to udp:[10.130.0.23:5070](http://10.130.0.23:5070/)
My pbx get requests from udp:[10.130.0.23:5070](http://10.130.0.23:5070/) with via header 10.130.0.23
Responses to UserAgent go from udp:[10.130.0.23:5060](http://10.130.0.23:5060/) with via 178.0.0.169
In RELAY block:
if ($Ru == «udp:10.130.0.23:5070») {
#set_send_socket(«udp:10.130.0.23:5060»);
$fs = «udp:10.130.0.23:5060»;
#force_send_socket(«udp:10.130.0.23:5060»);
} else {
#set_send_socket(«udp:10.130.0.23:5070»);
$fs = «udp:10.130.0.23:5070»;
}
#$fs = «udp:10.130.0.23:5070»;
if (!t_relay()) {
sl_reply_error();
}
route[REGISTRAR] {
...
if ($rd == "[mydomain.ru](http://mydomain.ru/)" || $rd == "[mydomain2.ru](http://mydomain2.ru/)") {
set_send_socket("udp:[10.130.0.23:5070](http://10.130.0.23:5070/)");
add_path();
route(DISPATCH);
}
...
}
It works for requests (INVITE and REGISTER) from UserAgent to PBX thought kamailio. But INVITE from my pbx to UserAgent go out only through udp:10.130.0.23:5070, Kamailio realy it to internet from udp:10.130.0.23:5070
I get error in syslog: (pv [pv_branch.c:62]: pv_get_branchx_helper(): error accessing branch [0])
I tried set_send_socket(«udp:10.130.0.23:5070»); and $fs = «udp:10.130.0.23:5070»;
Why I can`t relay outgoing requests to internet through another socket?
Thank you.
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