<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Oct 13, 2016 at 12:35 PM, Brandon B. <span dir="ltr"><<a href="mailto:bbinab@gmail.com" target="_blank">bbinab@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">What part of Asterisk 14.0.2 opens the random, high numbered (33094 currently) UDP port? This port is opened even without any channel drivers loaded.<br>
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$ sudo netstat -ltunp | grep asterisk<br>
udp 0 0 <a href="http://0.0.0.0:51488" rel="noreferrer" target="_blank">0.0.0.0:51488</a> 0.0.0.0:* 13830/asterisk<br>
udp 0 0 <a href="http://0.0.0.0:5060" rel="noreferrer" target="_blank">0.0.0.0:5060</a> 0.0.0.0:* 13830/asterisk<br>
udp 0 0 :::42516 :::* 13830/asterisk<br>
<br>
<br></blockquote><div><br></div><div>Those ports are used by the underlying pjproject DNS resolver. The resolver is always listening on those ports for DNS query responses. 1 for IPV4 and 1 for IPV6. Your firewall should only be allowing responses to flow through to those ports that match outgoing requests.</div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><span style="font-size:12.8px">George Joseph</span><br style="font-size:12.8px"><span style="font-size:12.8px">Digium, Inc. | Software Developer</span><span style="font-size:12.8px"><br>445 Jan Davis Drive NW - Huntsville, AL 35806 - US<br></span><span style="font-size:12.8px">Check us out at: </span><a href="http://www.digium.com/" rel="noreferrer" style="color:rgb(17,85,204);font-size:12.8px" target="_blank">www.digium.com</a><span style="font-size:12.8px"> & </span><a href="http://www.asterisk.org/" rel="noreferrer" style="color:rgb(17,85,204);font-size:12.8px" target="_blank">www.asterisk.org</a><br><div><br></div></div></div>
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