public GangliaListener(final IGangliaMessageHandler handler) throws UnknownHostException {
  this(InetAddress.getByName(DEFAULT_GROUP),DEFAULT_PORT,new GangliaMessageDecoder31(),handler);
}

public GangliaListener ( final IGangliaMessageHandler handler ) throws UnknownHostException { this ( InetAddress . getByName ( DEFAULT_GROUP ) , DEFAULT_PORT , new GangliaMessageDecoder31 ( ) , handler ) ; }
listen at the default multicast group address and port .
