[SR-Users] Help with 200k responses to the contact header not the record-route

[anfecora]

Hi all, can anyone help me to find out what is wrong with my setup, i have
an asterisk behind a kamailio, kamailio is proxying all packages  to the
outside.

when the call is bridge it gets disconnected after a few seconds, it seems
that our voip carrier is sending a bye because we didn't answer to their
200 ok properly, but as the trace shows we did only that kamailio is
answering to the contact header ip not the ip that is sending the ok.

I am sorry i sent a too long message before i will try skim it a bit.

any help is appreciated .

thanks.

my setup

request_route {

        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                exit;
        }


        if(is_method("OPTIONS")) {
            # send reply for each options request
            sl_send_reply("200", "ok");
            exit();
         }

   if(method=="BYE") {
   #Account BYE transactions

};


if (method=="CANCEL") {
if (t_check_trans()) t_relay();

exit;
};



 if (loose_route()) {


t_relay();
                exit;
       }


 if (is_method("INVITE")) {


                record_route();

        }
f (!t_relay_to_udp("3.1.1.1", "5060")) {
sl_reply_error();
exit;
};
exit
};

here is a trace to a call made to a hotel.
i had changed the real ips for obvious reasons.
thanks.


asterisk ip 1.1.1.1
kamailio internal 1.1.1.2
kamailio external 2.0.0.1
Voip Carrier 3.1.1.1
voip contact ip 3.1.1.2

U 2013/10/23 17:26:20.354248 1.1.1.2:5060 -> 3.1.1.2:5060
ACK sip:76890723276341079 at 3.1.1.2:5060 SIP/2.0.
Via: SIP/2.0/UDP 2.0.0.1:5060;branch=z9hG4bKcydzigwkX.
Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK280c4e9c;rport=5060.
Route:
<sip:2.0.0.1;lr=on;ftag=as4bc322e9>,<sip:3.1.1.1;lr;ftag=as4bc322e9;did=8b8.d7ef5a05>.
Max-Forwards: 16.
From: "+19812457865" <sip:+19812457865 at 1.1.1.1>;tag=as4bc322e9.
To: <sip:76890723276341079 at 3.1.1.2>;tag=3591552407-393967.
Contact: <sip:+19812457865 at 1.1.1.1:5060>.
Call-ID: 7d0ca48c1d48c14d104fac1f59194ae0 at 1.1.1.1:5060.
CSeq: 102 ACK.
User-Agent: Asterisk PBX 1.8.15-cert2.
Content-Length: 0.
.


U 2013/10/23 17:26:36.355580 3.1.1.1:5060 -> 1.1.1.2:5060
BYE sip:+19812457865 at 1.1.1.1:5060 SIP/2.0.
Max-Forwards: 69.
Route: <sip:2.0.0.1;lr=on;ftag=as4bc322e9>.
To: "+19812457865" <sip:+19812457865 at 1.1.1.1>;tag=as4bc322e9.
From: <sip:76890723276341079 at 3.1.1.1>;tag=3591552407-393967.
Call-ID: 7d0ca48c1d48c14d104fac1f59194ae0 at 1.1.1.1:5060.
CSeq: 2 BYE.
Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER,
SUBSCRIBE, PRACK, UPDATE.
Via: SIP/2.0/UDP 3.1.1.1:5060;branch=z9hG4bKce8a.db93afa3.0.
Via: SIP/2.0/UDP 3.1.1.2:5060
;branch=z9hG4bK96003ecbb11f5deaf6014235140e6952.
Contact: <sip:76890723276341079 at 3.1.1.2:5060>.
Content-Length: 0.

U 2013/10/23 17:26:20.354248 1.1.1.2:5060 -> 3.1.1.2:5060
ACK sip:76890723276341079 at 3.1.1.2:5060 SIP/2.0.
Via: SIP/2.0/UDP 2.0.0.1:5060;branch=z9hG4bKcydzigwkX.
Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK280c4e9c;rport=5060.
Route:
<sip:2.0.0.1;lr=on;ftag=as4bc322e9>,<sip:3.1.1.1;lr;ftag=as4bc322e9;did=8b8.d7ef5a05>.
Max-Forwards: 16.
From: "+19812457865" <sip:+19812457865 at 1.1.1.1>;tag=as4bc322e9.
To: <sip:76890723276341079 at 3.1.1.2>;tag=3591552407-393967.
Contact: <sip:+19812457865 at 1.1.1.1:5060>.
Call-ID: 7d0ca48c1d48c14d104fac1f59194ae0 at 1.1.1.1:5060.
CSeq: 102 ACK.
User-Agent: Asterisk PBX 1.8.15-cert2.
Content-Length: 0.
.


U 2013/10/23 17:26:36.355580 3.1.1.1:5060 -> 1.1.1.2:5060
BYE sip:+19812457865 at 1.1.1.1:5060 SIP/2.0.
Max-Forwards: 69.
Route: <sip:2.0.0.1;lr=on;ftag=as4bc322e9>.
To: "+19812457865" <sip:+19812457865 at 1.1.1.1>;tag=as4bc322e9.
From: <sip:76890723276341079 at 3.1.1.1>;tag=3591552407-393967.
Call-ID: 7d0ca48c1d48c14d104fac1f59194ae0 at 1.1.1.1:5060.
CSeq: 2 BYE.
Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER,
SUBSCRIBE, PRACK, UPDATE.
Via: SIP/2.0/UDP 3.1.1.1:5060;branch=z9hG4bKce8a.db93afa3.0.
Via: SIP/2.0/UDP 3.1.1.2:5060
;branch=z9hG4bK96003ecbb11f5deaf6014235140e6952.
Contact: <sip:76890723276341079 at 3.1.1.2:5060>.
Content-Length: 0.
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