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With the growth of Internet in the recent decades, business environment have transformed to take advantage of the new opportunities offered by this global phenomenon. Fundamental changes have occurred to data and communications networks and one such change has been the use of Virtual Private Network (VPN) to establish organizational networks that may span many geographic locations. VPN solution is...
In recent years, distributed systems are connected by VPN (Virtual Private Network) through the Internet, and construct complicated information systems. These information systems bring benefit and security risks to many users. Representative security risks, vulnerabilities are closely related to application software installed in information systems. If a malicious adversary identifies the application...
IPSec is a protocol that allows to make secure connections between branch offices and allows secure VPN accesses. However, the efforts to improve IPSec are still under way; one aspect of this improvement is to take quality of service (QoS) requirements into account. QoS is the ability of the network to provide a service at an assured service level while optimizing the global usage of network resources...
This paper first discusses the classic methods of covert communication to traverse the firewall devices which control the network communication. And based on the analysis of IPSec protocol architecture, that the worse of network compatibility of IPSec is got. So the new IPSec over HTTP protocol based on IPSec tunnel and HTTP tunnel is exposed including its structure and procedure. The soft structure...
IPSec VPN is commonly used to implement secure communications between different branch intranets over public networks. Multi-link aggregate IPSec VPN can make better use of multiple physical links of corporation. On the basis of analysis on the insufficiency of packet-based scheduling, a session-based tunnel scheduling model for multi-link aggregate IPSec VPN is proposed. The new model can distribute...
Internet has become the universal information communications infrastructure. VPN is commonly used to implement communications over different branch intranets. IPSec is a suit of protocols that adds security to communications at the IP layer, and it is a popular technology to implement VPN. On the basis of analysis on the insufficiency of traditional IPSec systems, a multi-link aggregate IPSec model...
The original goal of Internet protocol security (IPSec) is to enable the protection of all types of Internet protocol (IP) communications by protecting multiple peers at the network layer, in both the IPv4 and IPv6 environments. IPSec is a standard for securing internet communication and a widely deployed mechanism for implementing virtual private networks (VPNs). Most organisations deploy IPSec VPNs...
As a security mechanism at the network-layer, the IP security protocol (IPsec) has been available for years, but its usage is limited to virtual private networks (VPNs). The end-to-end security services provided by IPsec have not been widely used. To bring the IPsec services into wide usage, a standard IPsec API is a potential solution. However, the realization of a user-friendly IPsec API involves...
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