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Konzept

Konzept


Produkte: AS-B, AS-P, Project Configuration Tool
Funktionen: Sicherheit
Produktversion: 3.3, 2022
14.12.2022

Firewall

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.

Hinweis

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. Für weitere Informationen siehe Connecting to an Automation Server Using the USB Device Port .

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

Siehe auch

  • Security Overview
  • Adding an Automation Server to the Whitelist
  • Removing a Device from the Whitelist
  • Connecting to an Automation Server Using the USB Device Port