docs: def load(self, config):
          """Load the ports list from the configuration file."""
          ports_list = []
  
          if config is None:
              logger.debug("No configuration file available. Cannot load ports list.")
          elif not config.has_section(self._section):
              logger.debug("No [%s] section in the configuration file. Cannot load ports list." % self._section)
          else:
              logger.debug("Start reading the [%s] section in the configuration file" % self._section)
  
              refresh = int(config.get_value(self._section, 'refresh', default=self._default_refresh))
              timeout = int(config.get_value(self._section, 'timeout', default=self._default_timeout))
  
              # Add default gateway on top of the ports_list lits
              default_gateway = config.get_value(self._section, 'port_default_gateway', default='False')
              if default_gateway.lower().startswith('true') and netifaces_tag:
                  new_port = {}
                  try:
                      new_port['host'] = netifaces.gateways()['default'][netifaces.AF_INET][0]
                  except KeyError:
                      new_port['host'] = None
                  # ICMP
                  new_port['port'] = 0
                  new_port['description'] = 'DefaultGateway'
                  new_port['refresh'] = refresh
                  new_port['timeout'] = timeout
                  new_port['status'] = None
                  new_port['rtt_warning'] = None
                  new_port['indice'] = str('port_0')
                  logger.debug("Add default gateway %s to the static list" % (new_port['host']))
                  ports_list.append(new_port)
  
              # Read the scan list
              for i in range(1, 256):
                  new_port = {}
                  postfix = 'port_%s_' % str(i)
  
                  # Read mandatories configuration key: host
                  new_port['host'] = config.get_value(self._section, '%s%s' % (postfix, 'host'))
  
                  if new_port['host'] is None:
                      continue
  
                  # Read optionals configuration keys
                  # Port is set to 0 by default. 0 mean ICMP check instead of TCP check
                  new_port['port'] = config.get_value(self._section,
                                                      '%s%s' % (postfix, 'port'),
                                                      0)
                  new_port['description'] = config.get_value(self._section,
                                                             '%sdescription' % postfix,
                                                             default="%s:%s" % (new_port['host'], new_port['port']))
  
                  # Default status
                  new_port['status'] = None
  
                  # Refresh rate in second
                  new_port['refresh'] = refresh
  
                  # Timeout in second
                  new_port['timeout'] = int(config.get_value(self._section,
                                                             '%stimeout' % postfix,
                                                             default=timeout))
  
                  # RTT warning
                  new_port['rtt_warning'] = config.get_value(self._section,
                                                             '%srtt_warning' % postfix,
                                                             default=None)
                  if new_port['rtt_warning'] is not None:
                      # Convert to second
                      new_port['rtt_warning'] = int(new_port['rtt_warning']) / 1000.0
  
                  # Indice
                  new_port['indice'] = 'port_' + str(i)
  
                  # Add the server to the list
                  logger.debug("Add port %s:%s to the static list" % (new_port['host'], new_port['port']))
                  ports_list.append(new_port)
  
              # Ports list loaded
              logger.debug("Ports list loaded: %s" % ports_list)
  
          return ports_list