Hi folks,<br><br>I've got an issue with ACK messages being looped when they are sent to an endpoint that is co-located with my OpenSIPS proxy. <br><br>I've got OpenSIPS located on server A @ port 5060 and two conference endpoints: C01 on server A @ port 5070 and C02 on a separate server.<br>
<br>When my client calls into C01, the ACK message is continually routed by OpenSIPS back into itself instead of the conference endpoint listening on port 5070. This doesn't happened when I call into C02, OpenSIPS properly routes it to the right destination. <br>
<br>When I compare the two ACKs, they are fairly similar and when I looked at some OpenSIPS logs both messages are being routed in a similar fashion namely loose_route is true. The only difference (which I'm sure if the problem, I'm just not sure why) is that the ACK to C01 has Destination User ($du) of 192.168.117.4 while the ACK to C02 has a $du of NULL. <br>
<br>If anyone has any suggestions, I'd be grateful.<br><br>Thanks,<br>Daniel<br><br>Also here are the two ACKs for comparison:<br><br>ACK sip:C01@192.168.117.4:5070;transport=udp SIP/2.0<br>Via: SIP/2.0/UDP QWE.RTY.XYZ.ABC:2453;rport;branch=z9hG4bKPjca04290517874935af64a839e6bf9701<br>
Max-Forwards: 70<br>From: "deiland" <<a href="mailto:sip%3A1001@192.168.117.4">sip:1001@192.168.117.4</a>>;tag=d02a111d4a064b05a7cf987b006bd001<br>To: <<a href="mailto:sip%3AC01@192.168.117.4">sip:C01@192.168.117.4</a>>;tag=ma94e0688avFj<br>
Call-ID: 5c35c0a5dcb442a9afd324c988bd0a3c<br>CSeq: 24503 ACK<br>Route: <sip:192.168.117.4;lr><br>User-Agent: Blink 0.2.7 (Windows)<br>Content-Length: 0<br><br><br>ACK sip:C02@192.168.155.211:5070;transport=udp SIP/2.0<br>
Via: SIP/2.0/UDP QWE.RTY.XYZ.ABC:2122;rport;branch=z9hG4bKPj5318936898454066944aadf64ad846d0<br>Max-Forwards: 70<br>From: "deiland" <<a href="mailto:sip%3A1001@192.168.117.4">sip:1001@192.168.117.4</a>>;tag=ff6fb0856e264e7f96601529148bb206<br>
To: <<a href="mailto:sip%3AC02@192.168.117.4">sip:C02@192.168.117.4</a>>;tag=54aZ48KZ7a9Xj<br>Call-ID: afddb9bea6714f95bd84dff2159e2b14<br>CSeq: 11988 ACK<br>Route: <sip:192.168.117.4;lr><br>User-Agent: Blink 0.2.7 (Windows)<br>
Content-Length: 0<br><br><br>