[OpenSIPS-Users] loose_route: loop on ACK requests

[Bogdan-Andrei Iancu]

Hi Noel,

it looks like OpenSIPS is doing strict routing on the received ACK.

This happens if it finds out in RURI an IP/address which is considered 
local - in the case the RURI will be consumed and use the Route as new 
RURI...


So are you sure there is no misconfiguration in the alias params ?

Regards,
Bogdan

Noel R. Morais wrote:
> Hi guys,
>
> I'm having problems about loose_route(). Opensips is routing ACK
> requests to itself.
>
> I know that posting code and traces are ugly, but I think I do not
> have choices. Sorry.
>
> Follow bellow the code regarding loose_route:
> if (has_totag()) {
>                 if (loose_route()) {
>                         if(method=="INVITE") {
>                                 route(5); #Check authentication of re-invites
>                         }
>                         route(1);
>                 } else {
>                         if ( is_method("ACK") ) {
>                                 if ( t_check_trans() ) {
>                                         route(1);
>                                 }
>                 }
>         }
> }
>
>
> Follow bellow the trace, 192.168.191.188 is the opensips ip address:
> U 2009/03/11 14:46:53.950565 192.168.191.188:5060 -> 192.168.192.233:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 192.168.192.233;branch=z9hG4bKac74079177.
> Contact: <sip:XXXXXXXXX at 192.168.193.20:5060>.
> Record-Route: <sip:192.168.191.188;lr=on;ftag=1c74077990;did=f9e.d32b00d2>.
> Call-ID: 74077637112200051548 at 192.168.192.233.
> From: "Jeff002" <sip:YYYYYYYYYY at 192.168.193.20>;tag=1c74077990.
> To: <sip:XXXXXXXXX at 192.168.191.188;user=phone>;tag=a94c095b773be1dd6e8d668a785a9c8469ec.
> CSeq: 1 INVITE.
> Server: Cantata-SIP/10.3.2.51932 IMG 0.
> Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, INFO.
> Supported: path.
> Accept: application/sdp.
> Content-Type: application/sdp.
> Content-Length: 236.
> .
> v=0.
> o=Cantata_SDP 0 1 IN IP4 192.168.193.20.
> s=Cantata-SIP.
> c=IN IP4 192.168.193.21.
> t=0 0.
> m=audio 8944 RTP/AVP 18 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=silenceSupp:off - - - -.
> a=ptime:20.
>
>
> U 2009/03/11 14:46:53.997019 192.168.192.233:5060 -> 192.168.191.188:5060
> ACK sip:XXXXXXXXX at 192.168.193.20:5060 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.192.233;branch=z9hG4bKac82192814.
> Max-Forwards: 70.
> From: "Jeff002" <sip:YYYYYYYYYY at 192.168.193.20>;tag=1c74077990.
> To: <sip:XXXXXXXXX at 192.168.191.188;user=phone>;tag=a94c095b773be1dd6e8d668a785a9c8469ec.
> Call-ID: 74077637112200051548 at 192.168.192.233.
> CSeq: 1 ACK.
> Contact: <sip:YYYYYYYYYY at 192.168.192.233>.
> Route: <sip:192.168.191.188;lr=on;ftag=1c74077990;did=f9e.d32b00d2>.
> Supported: em,timer,replaces,path.
> Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE.
> User-Agent: Audiocodes-Sip-Gateway-MP-102 FXS/v.4.60A.035.001.
> Content-Length: 0.
> .
>
>
> U 2009/03/11 14:46:53.998178 192.168.191.188:5060 -> 192.168.191.188:5060
> ACK sip:192.168.191.188;lr=on;ftag=1c74077990;did=f9e.d32b00d2 SIP/2.0.
> Record-Route: <sip:192.168.191.188;lr=on;ftag=1c74077990>.
> Via: SIP/2.0/UDP 192.168.191.188;branch=z9hG4bKef17.5d8b81f4.2.
> Via: SIP/2.0/UDP 192.168.192.233;branch=z9hG4bKac82192814.
> Max-Forwards: 69.
> From: "Jeff002" <sip:YYYYYYYYYY at 192.168.193.20>;tag=1c74077990.
> To: <sip:XXXXXXXXX at 192.168.191.188;user=phone>;tag=a94c095b773be1dd6e8d668a785a9c8469ec.
> Call-ID: 74077637112200051548 at 192.168.192.233.
> CSeq: 1 ACK.
> Supported: em,timer,replaces,path.
> Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE.
> User-Agent: Audiocodes-Sip-Gateway-MP-102 FXS/v.4.60A.035.001.
> Content-Length: 0.
>
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