Design and implementation of VPN security gateway based on Linux kernel 2.6

The paper has firstly made thorough research and analysis to the IPsec support mechanism in Linux kernel 2.6 and then has given out a comprehensive building scheme of the IPsec VPN security gateway based on Linux kernel 2.6, combined with self-designed VPN security gateway console, the security gateway's interaction with kernel module, and the IKE module. The paper has designed and implemented an IPsec VPN security gateway prototype.