This article applies to ScreenOS 4.0 and higher.
To configure your NetScreen device in Route mode, perform the following steps:

Before performing the following steps, you will need to configure the manage IP to manage your NetScreen-25/50/204/208. For more information on how to configure a manage IP address, go to
Configuring a Manage IP Address on Juniper Networks NetScreen Device.

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

From the NetScreen options menu, click
Network, and then click
Interfaces.


From the
Trust interface, click
Edit.

From the Interface page, enter the IP Address and Netmask desired for the Trust zone.

For this example, we have entered
192.168.1.1 and
24.


From
Interface Mode, click to select
Route.

Click
OK.


From the
Untrust interface, click
Edit.


From the Interface page, click to choose
Obtain IP using PPPoE,
Obtain IP using DHCP, or
Static IP.


For this example, we have selected
Static IP, and we have entered an
IP Address/Netmask of
1.1.1.1/28.

Click
OK.
