Order a Citrix Netscaler VPX
If you haven't already, order your Citrix Netscaler VPX. For instructions on ordering, see Getting started with Citrix Netscaler VPX Software Appliance, and make sure to select 12.1 in step 5.
If 12.1 does not show, proceed with latest version available and upgrade your VPX by following the instructions in Upgrade your Citrix Netscaler VPX. You can also use the steps in this IBM Cloud® article to upgrade an existing device.
If the 12.1 version is not available in the Cloud repo, contact IBM Cloud Support for extra help.