[OpenSIPS-Users] loose_route: loop on ACK requests

[Vasil Kolev]

В 14:57 -0300 на 11.03.2009 (ср), Noel R. Morais написа:
> 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.
> 

Hm. After a month of reading you'll start to love them, trust me on
that :)


Anyway, from the log it seems you're relaying the ACK to you. What does
route(1) do, e.g. you probably need to show that block too...

Also, there was something that made the transaction to just eat up the
ACK, but I can't remember it right now, probably that's what you're
looking for in this case (or if not, you'll have to draw a picture on
what you're trying to accomplish :) )


> 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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-- 
Regards,
Vasil Kolev
Attractel NV
dCAP #1324, LPIC2