18 Jul
2005
18 Jul
'05
9:55 a.m.
Hi all:
I use ser+rtpproxy+nathelper to run as a outbound proxy.But the UAs can't
receive ACK or BYE from each other before a same NAT. What's wrong with this config
file? Can anybody here help me?
#
# $Id: ser.cfg,v 1.24 2003/11/11 15:32:36 andrei Exp $
#
# simple quick-start config script
#
# ----------- global configuration parameters ------------------------
#debug=3 # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no # (cmd line: -E)
/* Uncomment these lines to enter debugging mode
*/
#log_stderror=yes
#debug=4
debug =3
fork=yes
log_stderror=yes
check_via=no # (cmd. line: -v)
dns=no # (cmd. line: -r)
rev_dns=no # (cmd. line: -R)
port=5070
listen="222.44.33.59"
children=4
fifo="/tmp/ser_fifo"
# ------------------ module loading ----------------------------------
loadmodule "/home/ser-0.9.3/modules/sl/sl.so"
loadmodule "/home/ser-0.9.3/modules/tm/tm.so"
loadmodule "/home/ser-0.9.3/modules/rr/rr.so"
loadmodule "/home/ser-0.9.3/modules/maxfwd/maxfwd.so"
loadmodule "/home/ser-0.9.3/modules/usrloc/usrloc.so"
loadmodule "/home/ser-0.9.3/modules/textops/textops.so"
loadmodule "/home/ser-0.9.3/modules/registrar/registrar.so"
loadmodule "/home/ser-0.9.3/modules/nathelper/nathelper.so"
loadmodule "/home/ser-0.9.3/modules/uri/uri.so"
# ----------------- setting module-specific parameters ---------------
# -- usrloc params --
modparam("registrar", "nat_flag", 6)
modparam("usrloc", "db_mode", 0)
modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
modparam("nathelper", "ping_nated_only", 1) # Ping only clients
behind NAT
modparam("nathelper", "rtpproxy_sock",
"/var/run/rtpproxy.sock")
modparam("rr", "enable_full_lr", 1)
# ------------------------- request routing logic -------------------
route{
# -----------------------------------------------------------------
# Sanity Check Section
# -----------------------------------------------------------------
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483", "Too Many Hops");
break;
};
if (msg:len > max_len) {
sl_send_reply("513", "Message Overflow");
break;
};
#---------------
if (! search("^Record-Route:"))
{
append_hf("Alex-hint: NAThelper\r\n");
fix_nated_contact();
if(method == "REGISTER")
{
fix_nated_register();
save_noreply("location");
};
if (method == "INVITE")
{
append_hf("Alex-hint: SDP rewritten\r\n");
force_rtp_proxy();
};
force_rport();
setflag(6);
};
#---------------
# -----------------------------------------------------------------
# Record Route Section
# -----------------------------------------------------------------
if(method != "REGISTER")
{
record_route();
};
if (method=="BYE" || method=="CANCEL") {
unforce_rtp_proxy();
}
# -----------------------------------------------------------------
# Loose Route Section
# -----------------------------------------------------------------
if (loose_route()) {
if (has_totag() && (method=="INVITE" ||
method=="ACK")) {
if (nat_uac_test("19")) {
setflag(6);
force_rport();
};
force_rtp_proxy("l");
append_hf("Alex-hint: Loose Route\r\n");
};
route(1);
break;
};
# -----------------------------------------------------------------
# Call Type Processing Section
# -----------------------------------------------------------------
if (uri!=myself) {
route(1);
break;
};
if (uri==myself) {
if (method=="CANCEL") {
route(3);
break;
} else if (method=="INVITE") {
route(3);
break;
} else if (method=="REGISTER") {
route(2);
break;
} else if (method=="ACK") {
route(3);
break;
} else if (method=="BYE") {
route(3);
break;
};
lookup("aliases");
if (uri!=myself) {
route(1);
break;
};
if (!lookup("location"))
{
sl_send_reply("404", "User Not Found,aaa");
break;
};
};
route(1);
}
route[1] {
# -----------------------------------------------------------------
# Default Message Handler
# -----------------------------------------------------------------
t_on_reply("1");
if (!t_relay()) {
if (method=="INVITE" && isflagset(6)) {
unforce_rtp_proxy();
};
sl_reply_error();
};
}
route[2] {
# -----------------------------------------------------------------
# REGISTER Message Handler
# ----------------------------------------------------------------
if (!search("^Contact:\ +\*") && nat_uac_test("19"))
{
setflag(6);
fix_nated_register();
force_rport();
};
sl_send_reply("100", "Trying");
if(!save("location"))
{
sl_reply_error();
} else append_hf("Alex-hint: save location\r\n");
}
route[3] {
# -----------------------------------------------------------------
# CANCEL and INVITE Message Handler
# -----------------------------------------------------------------
if (nat_uac_test("19")) {
setflag(6);
};
if (uri!=myself) {
route(1);
break;
};
if (method == "INVITE" && !lookup("location")) {
sl_send_reply("404", "User Not Found haha");
break;
};
if (isflagset(6)) {
force_rport();
fix_nated_contact();
force_rtp_proxy();
};
t_on_reply("1");
if (!t_relay()) {
if(isflagset(6)) {
unforce_rtp_proxy();
}
sl_reply_error();
};
}
onreply_route[1] {
if (isflagset(6) || status=~"(180)|(183)|2[0-9][0-9]") {
fix_nated_contact();
if (!search("^Content-Length:\ +0")) {
force_rtp_proxy();
append_hf("NAT: 1\r\n");
};
};
}