You can create a complete end-to-end network from the datacenter to the cloud. All cloud servers communicate securely over SSL VPN.
Between the datacenter and the Amazon EC2 cloud is a site-to-site SSL VPN built with Vyatta. On the XenApp server in the cloud runs the Citrix Accelerator which connects back to the Citrix Branch Repeater/WANScaler at the datacenter, to accelerate data connections. The Citrix Accelerator makes cloud computing fast, Vyatta makes it secure.
The reason for using Vyatta site-to-site SSL VPN between the datacenter and Amazon EC2 cloud is there needs to be a secure network between the two for the transfer of data. The Vyatta AMI (Amazon Machine Image) can also function as a complete router and firewall. The Vyatta SSL VPN router provides security with scalability.
As you can see from the network diagram and video, complete routing from the datacenter to the Amazon cloud network is seamless. Data resides at the datacenter and is accessed, over the SSL VPN, by the Application running in XenApp. The remote user connects to XenApp, runs the application, and the application delivers the data to the remote user, quickly and securely.
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