Hi, Royee!
Can you turn on debugging for this call and send the logs (in private if
privacy is an issue)?
My assumption is that the dialog is created before fix_nated_contact()
is called, perhaps due to a siptrace() call or something, and the wrong
contact ends up in the dialog. Or perhaps fix_nated_contact() is not
called for some reason, although the nat test seems all right. Can you
add some debugging between the fix_nated_contact() block, so we can make
sure it is called?
Best regards,
Răzvan Crainea
OpenSIPS Solutions
www.opensips-solutions.com
On 06/06/2017 12:15 PM, Royee Tichauer via Users wrote:
Razvan,
Thanks for the help!
fix_nated_contact is called before create_dialog as you can also see
from the configuration file I added in the previous email.
When using the MI command I see:
callee_contact:: sip:USERNAME@PRIVATE_IP:PORT;transport=TCP
So it seems like the dialog is created with a private IP. Any suggestions?
Thanks,
Royee
On Tue, Jun 6, 2017 at 11:06 AM Răzvan Crainea <raz...@opensips.org
<mailto:raz...@opensips.org>> wrote:
Hi, Royee!
Can you make sure that fix_nated_contact() is called before
create_dialog()?
Also, if you run through MI the dlg_list_ctx command, what is the
contact header stored in the dialog?
Best regards,
Răzvan
Răzvan Crainea
OpenSIPS Solutions
www.opensips-solutions.com <http://www.opensips-solutions.com>
On 06/06/2017 11:02 AM, Royee Tichauer via Users wrote:
Hi,
I'm having some problems when using topology hiding. In my
scenario an INVITE comes in to the opensips (SBC) instance from
another opensips instance (Proxy). It is routed to a callee which
eventually answers with a 200OK. The 200 OK is routed through the
SBC to the Proxy which answers back with an ACK. This ACK is
absorbed by the SBC which (by looking at the logs) attempts to
send this ACK to the private IP of the callee instead of the the
NAT IP which was originally used for the incoming INVITE.
From the logs I see that right before I attempt to do
'topology_hiding_match()' the 'ruri=public_IP' and after the
method is called the ruri switches to 'ruri=private_IP'.
Attached is a trace. Below is a partial opensips.cfg file I am
using with opensips 2.1:
# ----- NATHELPER -----
loadmodule "nathelper.so"
modparam("nathelper", "received_avp", "$avp(42)")
# ----- DIALOG -----
loadmodule "dialog.so"
modparam("dialog", "db_mode", 0)
modparam("dialog", "dlg_match_mode", 1)
modparam("dialog", "profiles_no_value", "inboundcalls")
# ----- TOPOLOGY_HIDING -----
loadmodule "topology_hiding.so"
modparam("topology_hiding", "force_dialog", 1)
modparam("topology_hiding", "th_callid_passwd", "*********")
modparam("topology_hiding", "th_contact_encode_passwd", "*****")
modparam("topology_hiding", "th_callid_prefix", "****")
route {
route(nat_checks);
route(topology_check);
.
.
.
create_dialog();
record_route();
if (!has_totag() && is_method("INVITE")) {
topology_hiding("U");
}
.
.
.
}
route[topology_check] {
force_rport();
xlog("L_INFO", "[REQUEST $ci] current ruri: $ruri");
if (has_totag()) {
if (topology_hiding_match()) {
xlog("L_INFO", "[REQUEST $ci] $rm topology_check
successful match reinvite TH_callee_callid: $TH_callee_callid
ruri: $ruri");
route(relay);
} else {
xlog("L_INFO", "[REQUEST $ci] $rm topology_check Did not
match this request to a topology hiding dialog.");
if ( is_method("ACK") ) {
if ( t_check_trans() ) {
xlog("L_INFO", "[REQUEST $ci] $rm within a transaction
relaying");
route(relay);
} else {
xlog("L_INFO", "[REQUEST $ci] $rm not within a
transaction exiting");
exit;
}
}
xlog("L_INFO", "[REQUEST $ci] $rm sending 404 Not Found");
send_reply("404","Not Found");
exit;
}
}
}
route[nat_checks] {
if (nat_uac_test("1")) {
xlog("L_INFO", "[REQUEST $ci] $rm fix_nated_contact()");
fix_nated_contact();
}
}
.
.
.
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