Design and Implementation of a Kind of Virtual Private Network
Xin Li · Journal of Northeastern University · 2000
VPN technology is one efficient way to solve network security problem. A kind of VPN model based on the analysis of VPN's character and the principle of IPSec specification was presented. The request of group communication and QoS were considered. Some key technology such as Linux kernel reorganization, key refreshment, information filter based on policy and QoS control etc were discussed. That VPN products can be accepted widely or not lies on two factors: ①VPN product can be encrypted in line speed or not; ②Data stream of VPN can be led to different management domain of network or not.