This section explains how to install Turbo IPsec as a new appliance. If you already have a system running a previous version of Turbo IPsec (greater or equal to 1.5.0), you can also update your system using the CLI.
The CLI User Guide, System image management section.
Turbo IPsec is provided in several flavors:
img.gzfile, for physical installation using USB stick
isofile, for physical installation using CDROM or virtual CDROM
qcow2file for KVM users
ovafile for VMWare users
updatefile, used for updates