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How to

How to


Products: AS-B, Edge Server, AS-P, Virtual Project Servers
Functionalities: Security
Product version: 2024, 7.0
12/2/2024

Removing a Device from the Whitelist

You remove devices from the whitelist when you no longer want them to communicate with the field server.

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You can configure the devices that are allowed to communicate with the automation server to prevent connection attempts from unauthorized devices. The IP addresses of the devices that are allowed to communicate with the automation server are added to the whitelist.

The devices IP addresses are specified in the whitelist by their IP addresses or by specifying an address mask that includes the devices address. This makes it possible to add a mask of IP addresses to the whitelist using CIDR notation. The whitelist can be edited at any time.

The default whitelist, 0.0.0.0/0, allows all devices to communicate with the automation server. When you add devices to the whitelist, only the devices on the whitelist can communicate.

The maximum allowed size of a whitelist is 2048 bytes, approximately 100 devices.

Notice

Loss of data

When you start to add devices to the whitelist using a network connection, make sure that you add the computer you are using to the whitelist. If you do not add the computer you are using to the whitelist, you lock yourself out from the automation server.

If you lock yourself out, you can connect to the automation server using the USB and then reset the whitelist. For more information, see Connecting to an Automation Server Using the USB Device Port .

Failure to follow these instructions can result in loss of data.

If you have a number of automation servers that uses the same whitelist configuration, you can configure all automation server at the same time.

In WorkStation, use Mass Editing:

For more information, see Mass Edit .

For more information, see Mass Editing Objects .

In WebStation, use Multi-editing in Search:

For more information, see Search in WebStation .

For more information, see Multi-editing in Search .

To remove a device from the whitelist

  1. In Device Administrator, click Servers and then click the server.

  2. Click Firewall .

  3. Remove the device from the whitelist.

  4. Click OK .

    Tip:

    If you want to clear the whole list, click Reset whitelist and then click OK .

See Also

  • Firewall
  • Firewall Tab
  • Adding a Field Server to the Whitelist