A DVD image for burning the standard installation medium is available on the download page Techzone download page for Airlock Gateway. Preparing a DVD can be achieved using any standard burning programs.
Alternatively, Airlock Gateway supports the installation from USB flash drives as further described in this article.
Advanced installation i.e. using iLO Virtual Media option to mount the Airlock Gateway DVD image remotely might be an option on devices without USB or DVD drive access. For more information, refer to your HP Integrated Lights-Out User Guide.