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Hello,<br>
<br>
<div class="moz-cite-prefix">On 11/28/13 5:58 PM, Adnan wrote:<br>
</div>
<blockquote
cite="mid:CANOUmJLLJYBZcLyFipGJCLQFFyX-GAo5WmRce9eshXTgD073sQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Hi,</div>
<div><br>
</div>
<div><br>
</div>
<div>1. After adding t_newtran() as shown below, some how this
got fixed i.e. ACK got routed.<br>
</div>
<div><br>
</div>
<div>However, we are disputed in considering t_newtran() to have
caused the fix.</div>
<div><br>
</div>
<div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">if
(is_method("ACK")) {</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
if (t_check_trans()) {</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
t_relay();</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
exit;</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
} else {
</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px"><span
style="font-family:arial;font-size:small">
<b> t_newtran();
#<<<<NEW ADD>>>></b></span><br>
</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
exit;</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
}</div>
</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br>
</div>
</div>
</blockquote>
I find that strange, end to end ACK does create any transaction
anyhow. Still the sip trace is what can reveal where is the issue.<br>
<br>
<blockquote
cite="mid:CANOUmJLLJYBZcLyFipGJCLQFFyX-GAo5WmRce9eshXTgD073sQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">2.
Is there a frequently used tool remove the private info. from
the snoop traces before sending in as debug info.</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br>
</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">One
way to remove the info, is to convert snoop to text and then
replace all IPs and passwords using sed but I need something
less time consuming.</div>
</div>
</blockquote>
<br>
Converting to text and find/replace is the way typically just works,
sed should do it quickly, another tool perhaps will end up in being
another sed.<br>
<br>
Daniel<br>
<blockquote
cite="mid:CANOUmJLLJYBZcLyFipGJCLQFFyX-GAo5WmRce9eshXTgD073sQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br>
</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">Br</div>
<div
style="font-family:arial,sans-serif;font-size:12.800000190734863px">
Adnan</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Nov 27, 2013 at 11:30 PM,
Daniel-Constantin Mierla <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:miconda@gmail.com"
target="_blank">miconda@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> For further
clarification, the Contact header is not relevant at all
(so not used) for routing current request (no matter is
ACK or something else). No Contact never results in
misrouting. As Alex pointed, only a full sip trace can
reveal the problem.<br>
<br>
Cheers,<br>
Daniel
<div>
<div class="h5"><br>
<br>
<div>On 11/27/13 8:31 PM, Alex Balashov wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div class="h5">The only way to diagnose this is to
get a full packet capture. In all likelihood, there
is a problem with the ACK. 4.0 does not, in
principle, mishandle ACKs, no, but loose-routing and
NAT problems related to their handling are not
uncommon. <br>
<br>
<br>
<div class="gmail_quote">Adnan <a
moz-do-not-send="true"
href="mailto:112linuxstockholm@gmail.com"
target="_blank"><112linuxstockholm@gmail.com></a>
wrote:
<blockquote class="gmail_quote" style="margin:0pt
0pt 0pt 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Hi,
<div><br>
</div>
<div>We are migrating from our openser 1.4 to
kamailio 4.0.3 and have run into a couple of
issues. One of them is described below and
we need to know if it is a known bug or not.<br>
<div><br>
</div>
<div>Kamailio receives an INVITE from a
gateway and finally responds with 200 OK.
Then an ACK is generated by the gateway
towards the Kamailio that some how does
not get relayed to the next hop.</div>
<div><br>
</div>
<div>The only special aspect here is that
the ACK does not contain a Contact header.
Is that something that could confuse
kamailio and make it unable to relay?</div>
<div><br>
</div>
<div>According to SIP RFC, a contact header
in ACK is not a must have. Our case is the
one where ACK is sent by the UAC after
receiving a 200 OK final response.
Everything else about the ACK looks OK
e.g. ACK has a branch different from the
the branch value in the UAC INVITE.</div>
<div><br>
</div>
<div>Is it a a known bug in 4.0.3?</div>
<div><br>
</div>
<div>In the configuration, we handle ACK as
below:</div>
<div><br>
</div>
<div>
<div>if (is_method("ACK")) {</div>
<div> if
(t_check_trans()) {</div>
<div>
t_relay();</div>
<div>
exit;</div>
<div> }
else { </div>
<div>
exit;</div>
<div> }</div>
<div> </div>
</div>
<div>Br<br>
</div>
<div>Adnan</div>
</div>
</div>
<pre><hr>
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</pre>
</blockquote>
</div>
<br>
--<br>
Sent from my mobile, and thus lacking in the
refinement one might expect from a fully fledged
keyboard. <br>
<br>
Alex Balashov - Principal <br>
Evariste Systems LLC<br>
235 E Ponce de Leon Ave<br>
Suite 106<br>
Decatur, GA 30030<br>
United States<br>
Tel: <a moz-do-not-send="true"
href="tel:%2B1-678-954-0671" value="+16789540671"
target="_blank">+1-678-954-0671</a><br>
Web: <a moz-do-not-send="true"
href="http://www.evaristesys.com" target="_blank">http://www.evaristesys.com</a>/,
<a moz-do-not-send="true"
href="http://www.alexbalashov.com" target="_blank">http://www.alexbalashov.com</a>
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<pre>_______________________________________________
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</font></span></pre>
<span class="HOEnZb"><font color="#888888"> </font></span></blockquote>
<span class="HOEnZb"><font color="#888888"> <br>
<pre cols="72">--
Daniel-Constantin Mierla - <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
<a moz-do-not-send="true" href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a></pre>
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<br>
</blockquote>
</div>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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