Hi John,
By any chance, does your OpenSIPS spew out errors such as the following?
"ERROR:SCRIPT BUG - second attempt to change URI Contact"
If yes, then this is expected. You should address your NAT traversal
issue with fix_nated_register(), which is compatible with
mid_registrar_save().
Best regards,
Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com
On 19.03.2018 21:16, John Kiniston wrote:
I'm working on setting up mid_registrar and it's mostly working but I
have a problem with RTP being sent to the wrong address.
I'm trying to fix this by using fix_contact in my script but it
doesn't appear to be rewriting the contact when the registrar is sent
on to my Asterisk box.
I see the request from my phone to my proxy:
U 2018/03/19 12:04:54.650203 X.X.X.X:5060 -> 192.168.69.159:5060
<http://192.168.69.159:5060>
REGISTER sip:pi.lzrd.net:5060 <http://pi.lzrd.net:5060> SIP/2.0.
Via: SIP/2.0/UDP 172.16.52.76:5060;branch=z9hG4bK2864496306;rport.
From: "John Kiniston" <sip:[email protected]:5060
<http://sip:[email protected]:5060>>;tag=2815321839.
To: "John Kiniston" <sip:[email protected]:5060
<http://sip:[email protected]:5060>>.
Call-ID: [email protected] <mailto:[email protected]>.
CSeq: 1 REGISTER.
Contact: <sip:[email protected]:5060
<http://sip:[email protected]:5060>>.
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY,
REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE.
Max-Forwards: 70.
User-Agent: Yealink SIP-T42S 66.81.0.110.
Expires: 0.
Allow-Events: talk,hold,conference,refer,check-sync.
Mac: 00:15:65:b4:d3:d3.
Line: 1.
Content-Length: 0.
.
And here is the request from my proxy to my PBX:
U 2018/03/19 12:04:54.808558 192.168.69.159:5060
<http://192.168.69.159:5060> -> 64.119.36.19:5060
<http://64.119.36.19:5060>
REGISTER sip:pi.lzrd.net <http://pi.lzrd.net> SIP/2.0.
Via: SIP/2.0/UDP 64.119.34.211:5060;branch=z9hG4bK0e8e.34dfaf97.0.
Via: SIP/2.0/UDP
172.16.52.76:5060;received=x.x.x.x;branch=z9hG4bK2864496306;rport=5060.
From: "John Kiniston" <sip:[email protected]:5060
<http://sip:[email protected]:5060>>;tag=2815321839.
To: "John Kiniston" <sip:[email protected]:5060
<http://sip:[email protected]:5060>>.
Call-ID: [email protected] <mailto:[email protected]>.
CSeq: 1 REGISTER.
Contact: <sip:[email protected]:5060
<http://sip:[email protected]:5060>>.
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY,
REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE.
Max-Forwards: 69.
User-Agent: Yealink SIP-T42S 66.81.0.110.
Expires: 0.
Allow-Events: talk,hold,conference,refer,check-sync.
Mac: 00:15:65:b4:d3:d3.
Line: 1.
Content-Length: 0.
Path: <sip:64.119.34.211:5060;lr>.
Shouldn't the Contact be rewritten with the source IP of the request
from the phone to X.X.X.X?
OpenSIPS$:ul show
Domain:: location table=512 records=1
AOR:: 7002kiniston
Contact:: sip:[email protected]:5060 Q=
ContactID:: 2933602576022647686
Expires:: 3330
Callid:: [email protected]
<mailto:[email protected]>
Cseq:: 2
User-agent:: Yealink SIP-T42S 66.81.0.110
State:: CS_NEW
Flags:: 0
Cflags::
Socket:: udp:X.X.X.X:5060
Methods:: 16383
In my main script I have:
if ($si == "X.X.X.X"){
route(FromEndPoint);
}
route[FromEndPoint]{
route("nat_test_and_correct");
if (is_method("INVITE")){
if (is_registered("location","$fu")) {
route(outbound);
} else {
t_reply("503","Authentication failed");
}
}
if (is_method("SUBSCRIBE|NOTIFY|MESSAGE")){
route(outbound);
};
if (is_method("REGISTER")) {
route(register);
}
}
route[register]{
if (is_method("REGISTER")) {
xlog("L_INFO","Saving location to mid_registrar");
mid_registrar_save("location");
switch ($retcode) {
case 1:
xlog("forwarding REGISTER to main
registrar($$ci=$ci) $ru\n");
$ru = "sip:" + $td:$rp;
t_relay();
break;
case 2:
xlog("absorbing REGISTER! ($$ci=$ci)\n");
break;
default:
xlog("failed to save registration!
($$ci=$ci)\n");
}
exit;
}
}
route[outbound]{
t_relay();
exit;
}
route[nat_test_and_correct] {
if ((method=="REGISTER|SUBSCRIBE|INVITE") && !has_totag() &&
client_nat_test("3")) {
nat_keepalive();
}
if (client_nat_test("3")) {
force_rport();
fix_contact();
}
}
--
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
---Heinlein
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