Dynamic IP-VPN architecture with secure IPsec tunnels

An IP virtual private network using IPsec (IPsecVPN) has begun to be used as a forwarding base for cloud services. Cloud computing architecture is evolving into an inter-cloud structure that enables many cloud services to connect to each other freely. IPsecVPN applied to cloud services will increase in complexity along with the evolving cloud architecture. In this paper, we discuss the requirements for applying IPsecVPN to cloud services and propose dynamic IP-VPN architecture with secure IPsec tunnels that meets these requirements.