Obtain installation files
If you did not receive an installation DVD for the Secure SD-WAN Engine software or the SMC, download installation files.
 You do not have to download installation files under these circumstances: 
 
	 - Secure SD-WAN Engine appliances and the SMC Appliance are delivered with the necessary software pre-installed on them. You do not need to download installation files for these appliances.
 - You might have received ready-made installation DVDs of the Secure SD-WAN Engine software and the SMC software.