Research on VPN Network System using IPSec Protocol

VPN and IPsec

Simple-VPN: Simple IPsec Configuration

The IPsec protocol promised easy, ubiquitous encryption. That has never happened. For the most part, IPsec usage is confined to VPNs for road warriors, largely due to needless configuration complexity and incompatible implementations. We have designed a simple VPN configuration language that hides the unwanted complexities. Virtually no options are necessary or possible. The administrator speci...

IPsec/VPN security policy correctness and assurance

With IPSec/VPN policies being widely deployed, how to correctly specify and configure them is critical in enforcing security requirements. Under current practice, IPSec/VPN policies are usually specified manually by system administrators and thus prone to errors. However, dynamic aspects in the network may interfere with the existing policy set up and thus cause unexpected conflict. To deal wit...

Ipsec – a Network Layer Security Protocol

IP Security originated from conception of IPv6, a proposed extension to IPv4, wherein IP addresses would be expanded from 32 to 128 bits and a heightened level of security at the network layer would be achieved. The latter issue was dropped into the hands of the Internet Engineering Task Force in order for this security protocol to become standardized. During this process, it was discovered tha...

Secure VPN Based on Combination of L2TP and IPSec

This report is written to provide a method of building secure VPN by combination of L2TP and IPSec in order to meet the requirements of secure transmission of data and improve the VPN security technology. It remedies the secured short comes of L2TP Tunneling Protocol Tunneling Protocol and IPSec security. Simulation and analysis show that the construction method can improve the security of data...