Security VPN Constructed by the Combination of L2TP and IPSec
HU Yong-liang · Journal of Taizhou University · 2004
Virtual Private Network (VPN) is a prevailing method to construct intranet and extranet and realize remote access. Security tunneling is the core technology of VPN. In this study, a detailed analysis of the security flaw of VPN based on L2TP and high security brings to a conclusion that a safer VPN will be achieved by using IPSec protocol to encapsulate payload in L2TP tunneling.