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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...
We have introduced a new VPN system that uses SIP to enable NGN users to easily create IPsec tunnels. In this paper, to expand business opportunities, we propose a new business model for the system. We will discuss that a service model that has evolved over telephone-networks can be applied to the system.
We have developed a new on-demand VPN system that works over a managed SIP network such as the next-generation network (NGN). The system achieves a stable broadband VPN connection between two home networks in an easy-to-use manner by using SIP for session management. The system uses telephone numbers, QoS management, and packet-filtering capabilities that are provided by the NGN. In this paper, we...
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