librenms-librenms/includes/definitions/discovery/zywall.yaml

mib: ZYXEL-ZYWALL-ZLD-COMMON-MIB
modules:
    processors:
          data:
              -
                  oid: sysCPUUsage
                  num_oid: '.1.3.6.1.4.1.890.1.6.22.1.1.{{ $index }}'
    sensors:
        pre-cache:
            data:
                - oid:
                    - vpnConnectionName
        state:
            data:
                -
                    oid: vpnConnectStatus
                    value: vpnConnectStatus
                    num_oid: '.1.3.6.1.4.1.890.1.6.22.2.4.1.6.{{ $index }}'
                    descr: 'vpn : {{ $vpnConnectionName }}'
                    index: 'vpnIndex.{{ $index }}'
                    state_name: vpnConnectStatus
                    states:
                        - { descr: Disconnected, graph: 0, value: 0, generic: 2 }
                        - { descr: Connected, graph: 0, value: 1, generic: 0 }