UDP input plugin fails with SocketError: bind: name or service not known
<p>This is my logstash config file. I want to use multiple config files by using the type.</p>

<pre><code>input {
  udp { 
    port =&gt; 62555
    type =&gt; 4444 
  } 
}
output {
   if [type] == "4444" {
   }
}
</code></pre>

<p>The error is:</p>

<pre><code>←[33mUDP listener died {:exception=&gt;#&lt;SocketError: bind: name or service not   known&gt;, :backtrace=&gt;["org/jruby/ext/socket/RubyUDPSocket.java:157:in `bind'","F:/elasticsearch-2.3.1/logstash-2.3.4/vendor/bundle/jruby/1.9/gems/logstash-input-udp-2.0.5/lib/logstash/inputs/udp.rb:67:in `udp_listener'", "F:/elasticsearch-2.3.1/logstash-2.3.4/vendor/bundle/jruby/1.9/gems/logstash-input-udp2.0.5/lib/logstash/inputs/udp.rb:50:in `run'", "F:/elasticsearch-2.3.1/logstash-2.3.4/vendor/bundle/jruby/1.9/gems/logstash-core-2.3.4-java/lib/logstash/pipeline.rb:342:in `inputworker'", "F:/elasticsearch2.3.1/logstash-2.3.4/vendor/bundle/jruby/1.9/gems/logstash-core-2.3.4-java/lib/logstash/pipeline.rb:336:in `start_input'"], :level=&gt;:warn}←[0m
</code></pre>