<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">W dniu 2013-09-06 22:34, Guus Sliepen
pisze:<br>
</div>
<blockquote cite="mid:20130906203426.GA4013@sliepen.org" type="cite">
<pre wrap="">On Fri, Sep 06, 2013 at 01:03:56PM +0200, Dariusz Bajszczak wrote:
</pre>
<blockquote type="cite">
<pre wrap=""> I have problem with lost packets in tinc connection. I have tinc VPN with about 60 nodes (central node with tinc 1.0.20 and 59 nodes with tinc 1.0.9 connecting with central). Everything works fine except 2 nodes. In this nodes I observed about 90 % packet loss in connection to central. In the logs (debug level 5) I don't see any errors. I tested connection with iperf (server in central node). When I use iperf over tinc, 90% packet is lost (10 kbits/s speed), without tinc (with the same protocols and ports, udp and tcp port 654) everything is ok (4 Mbit/s). All nodes have the same version of tinc, identical configuration (except ip address) and firewall. I need help.
</pre>
</blockquote>
<pre wrap="">
Did you check the logs of the central node AND of the two problematic nodes? Is
there anything different about those two nodes than the 57 other 1.0.9 nodes?
If those things don't give you any answers, could you send me the tinc.conf of
the central node and the two problem nodes, their host config files, and the
contents of tinc-up on those three nodes? That would give us a better idea of
your configuration.
</pre>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
tinc mailing list
<a class="moz-txt-link-abbreviated" href="mailto:tinc@tinc-vpn.org">tinc@tinc-vpn.org</a>
<a class="moz-txt-link-freetext" href="http://www.tinc-vpn.org/cgi-bin/mailman/listinfo/tinc">http://www.tinc-vpn.org/cgi-bin/mailman/listinfo/tinc</a>
</pre>
</blockquote>
Hello,<br>
<br>
<span id="result_box" class="" lang="en"><span class="hps">I
found a solution</span> <span class="hps atn">(</span><span>or
workaround</span><span>) my</span> <span class="hps">problem.</span>
<span class="hps">When I switch tinc</span> <span class="hps">to
TCP</span> (TCPOnly=yes) <span class="hps">everything is
working properly</span><span>.</span> <span class="hps">I do
not know</span> <span class="hps">why</span> <span class="hps">UDP</span>
<span class="hps">is a problem.</span> <span class="hps">ISP</span>
<span class="hps">may</span> <span class="hps">block</span> <span
class="hps">packets</span><span>, but only</span> <span
class="hps">on port</span> <span class="hps">655</span><span>,
because</span> <span class="hps">654</span> <span class="hps">is</span>
<span class="hps">working correctly. In</span><span class="hps">
one location</span> <span class="hps">I tried</span> <span
class="hps">the</span> <span class="hps">two</span> <span
class="hps">connections</span><span class="">, from other ISP</span><span
class="hps"></span> <span class="hps">and</span> <span
class="hps">in both</span> <span class="hps">there was a
problem</span><span>.</span> When I count<span class="hps"></span>
<span class="hps">the number of packets</span> <span class="hps">on
the</span> <span class="hps">external</span> <span class="hps">interface</span>'s,
in node count<span class="hps"></span> <span class="hps">about</span>
<span class="hps">680</span><span class="">, in central </span><span
class="hps">only</span> <span class="hps">about</span> <span
class="hps">18.<br>
<br>
Best regards,<br>
Darek<br>
</span></span>
</body>
</html>