<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
On 9/15/11 9:20 AM, CT Radu wrote:
<blockquote cite="mid:4E71A759.1000907@gmail.com" type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
<font size="-1">Dear sirs and madams,<br>
<br>
I was wondering what is the current support for DNS fallback in
the 3.1.x branch .<br>
Lets assume we have a new dialog started and the name in the To
field needs to be resolved via a NAPTR.<br>
Kamailio sends a NAPTR request, gets 3 SRVs , each with a number
of A or AAAA records.<br>
The best/most suitable SRV is selected, however no response is
returned from any of the addresses in the A records.<br>
Now, we should go the second SRV and try the A records in there
and so on.<br>
<br>
My question is how much from this kind of dns fallback algorithm
is supported ?<br>
(I hope my explanation wasn't too confusing)<br>
</font></blockquote>
If internal dns cache is enabled (on by default) and then
dns_try_naptr parameter is on as well, then all above should work
properly. See more details in the wiki, including the list of dns
related parameters which can be used to tune the behavior:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:3.1.x#dns_parameters">http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:3.1.x#dns_parameters</a><br>
<br>
Cheers,<br>
Daniel<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>
Kamailio Advanced Training, Oct 10-13, Berlin: <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a>
<a class="moz-txt-link-freetext" href="http://linkedin.com/in/miconda">http://linkedin.com/in/miconda</a> -- <a class="moz-txt-link-freetext" href="http://twitter.com/miconda">http://twitter.com/miconda</a></pre>
</body>
</html>