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[Archive] Example of Trust-Untrust Mode Configuration in ScreenOS 5.0



Article ID: KB4255 KB Last Updated: 16 Jun 2010Version: 6.0

Example of Trust-Untrust Mode Configuration in ScreenOS 5.0




Note: This article applies to ScreenOS 5.0.

Image of example

In this NetScreen sample configuration, these are the interface settings:

  • Untrust Zone Interface is
  • External Router is, this IP address is the Untrust Zone's default gateway
  • Trust Zone Interface is, this IP address is the Trust Zone's default gateway
  • Devices in the Trust Zone will have IP addresses in the 192.168.1.x subnet, a subnet mask of, and a default gateway of

note: To configure the NetScreen device in Trust-Untrust mode, go to: Configuring the NetScreen-5XT in Trust-Untrust Mode in ScreenOS 5.0.

To view a NetScreen Trust-Untrust mode configuration file, perform the following step:

Open the WebUI. For more information on accessing the WebUI, go to Accessing Your NetScreen-5XT Using the WebUI.

From the NetScreen options menu, click Configuration, select Update, and then click Config File.

Image of step two

In the Current System Configuration text box, scroll to view the configuration file.

Image of step three


In the text box, scroll to view an example configuration.

note: You can copy and paste the text into a text editor to view the configuration file as well.


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