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[ScreenOS] How do I add a VSYS license key?



Article ID: KB5518 KB Last Updated: 17 Apr 2020Version: 6.0

This article explains how to add a virtual system (VSYS) license key.


The VSYS button is not showing up in the Web UI.


The VSYS button does not appear in the Web UI under the following conditions:

  • When the ScreenOS device is in transparent mode (5.4 and below).
  • When VSYS keys are not installed.

Transparent Mode

Support for VSYS in transparent mode was added in ScreenOS 6.0.

VSYS keys

Load the VSYS keys. From the Command Line Interface (CLI), perform the steps below:

  1. Execute the exec license-key <license-key> command.
  2. Enter reset.
  3. At the prompt, enter y.


ns5200-> exec license-key <license-key>
You have to reset the device to activate the license key.

ns5200-> reset
System reset, are you sure? y/[n] y
In reset ...


If you did not receive a license key for your VSYS, contact Customer Care.

Modification History:
2020-04-15: Article reviewed for accuracy.  No changes made. Article is correct and complete.
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