VPN facilitates connectivity from your secure network to IBM IaaS platform’s private network. A VPN connection from your location to the private network allows for out-of-band management and server rescue through an encrypted VPN tunnel. Communicating using the private network is inherently more secure and gives users the flexibility to limit public access while still being able to access their servers. Any user on your account can be given VPN access, which is available as both SSL and PPTP. In addition IBM Bluemix also allows to establish a connection using IPSec.