class shorewall::rules::munin(
  $munin_port = '4949',
  $munin_collector = ['127.0.0.1'],
  $collector_source = 'net'
){
    shorewall::params { 'MUNINPORT': value => $munin_port }
    shorewall::params { 'MUNINCOLLECTOR': value => join(any2array($munin_collector),',') }
    shorewall::rule{'net-me-munin-tcp':
        source          => "${collector_source}:\$MUNINCOLLECTOR",
        destination     => '$FW',
        proto           => 'tcp',
        destinationport => '$MUNINPORT',
        order           => 240,
        action          => 'ACCEPT';
    }
}