Seems like a loose routing issue. Are you loose routing in your config file?<br><br><div class="gmail_quote">On Wed, May 9, 2012 at 4:34 PM, Stoyan Mihaylov <span dir="ltr"><<a href="mailto:stoyan.v.mihaylov@gmail.com" target="_blank">stoyan.v.mihaylov@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">You can use something like wireshark on Kamailio server to see if ACK packets go in right direction.<div>I had problem with ACK and BYE, and I saw that in some cases ACK and BYE packets looped back in kamailio.</div>
<div>May be I used wrong client.<div><div class="h5"><br>
<br><div class="gmail_quote">On Wed, May 9, 2012 at 5:15 PM, Efelin Novak <span dir="ltr"><<a href="mailto:efelin.novak@gmail.com" target="_blank">efelin.novak@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi folks,<br>
<br>
I have a strange problem when Kamailio ignores ACKs in a specific<br>
scenario. The call flow is as follows:<br>
<br>
A -> INVITE -> kamailio -> INVITE -> B<br>
[omitting 100 and 180]<br>
A <- 200 OK <- kamailio <- 200 OK <- B<br>
A -> ACK -> kamailio<br>
<br>
There are INVITE Xlogs, Reply ROUTE xlogs and media-proxy logs in the<br>
syslog. However there is no information about these ACKs. No XLOGs are<br>
printed even if there is one on the top of the main route.<br>
<br>
"tcpdump -A -s0 -i any -n port 5060" receives this message correctly:<br>
<br>
14:47:01.246153 IP 111.111.11.11.5060 > 80.80.80.80.60442: SIP, length: 915<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/UDP<br>
111.111.11.11:5060;rport=60442;x-route-tag="tgrp:A";branch=z9hG4bK1634E6A88<br>
Record-Route: <sip:111.111.11.11;lr;ftag=599248D4-260;vsf=AAAAAAAAAAAAAAAAAAAAW0FVT0ZWHF1aNy4xGzA-;nat=yes;did=3bb.327c47e6><br>
Contact: <sip:80.80.80.80:65002;transport=udp><br>
To: "test_account"<<a href="mailto:sip%3Abob@server.com" target="_blank">sip:bob@server.com</a>>;tag=cb7dd641<br>
From: <<a href="mailto:sip%3Aalice@111.111.11.50" target="_blank">sip:alice@111.111.11.50</a>>;tag=599248D4-260<br>
Call-ID: 9AFCFC51.11.50<br>
CSeq: 101 INVITE<br>
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, INFO, SUBSCRIBE, UPDATE<br>
Content-Type: application/sdp<br>
Content-Length:263<br>
<br>
v=0<br>
o=- 492575093 492575093 IN IP4 111.111.11.60<br>
s=test_device<br>
i=(o=IN IP4 192.168.1.10)<br>
c=IN IP4 111.111.11.71<br>
t=0 0<br>
m=audio 16416 RTP/AVP 18 101<br>
a=rtpmap:18 G729/8000<br>
a=fmtp:18 annexb=no<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=ptime:20<br>
<br>
14:47:01.254511 IP 111.111.11.50.60442 > 111.111.11.11.5060: SIP, length: 521<br>
ACK sip:80.80.80.80:65002;transport=udp SIP/2.0<br>
Via: SIP/2.0/UDP<br>
111.111.11.50:5060;x-route-tag="tgrp:A";branch=z9hG4bK1634E7DE8<br>
From: <<a href="mailto:sip%3Aalice@111.111.11.50" target="_blank">sip:alice@111.111.11.50</a>>;tag=599248D4-260<br>
To: "test_account"<<a href="mailto:sip%3Abob@server.com" target="_blank">sip:bob@server.com</a>>;tag=cb7dd641<br>
Call-ID: 9AFCFC51.11.50<br>
Route: <sip:111.111.11.11;lr;ftag=599248D4-260;vsf=AAAAAAAAAAAAAAAAAAAAW0FVT0ZWHF1aNy4xGzA-;nat=yes;did=3bb.327c47e6><br>
Max-Forwards: 70<br>
CSeq: 101 ACK<br>
Content-Length: 0<br>
<br>
My Kamailio version is kamailio 3.1.0 (i386/linux) 1e204f.<br>
Does anybody knows where can be a problem?<br>
How can I check whether Kamailio receives something?<br>
<br>
...<br>
<br>
Jan<br>
<br>
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</blockquote></div><br></div></div></div>
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