Study on the Application of IPSec-based VPN Technology in Campus Network;

Research of VPN Based on IPsec;

Comparison and Analysis of IPSec Based and MPLS Based VPN;

The basic components of IP security and a suite of IKE protocol were introduced.

The article has introduced IP security architecture and parts that this system structure may be realized in IPv6, Having described the service of network security that IPsec offers and realize the principle in detail, it is discussed that realizes the security through AH and ESP s head in IPv6.

IPSec( IP Security) is one of the security specification which provides various security services for traffic at the IP layer.

Concerning IPSec VPN Solutions of Anxia Property Management Co.,in Qujing;

Implementation Processing of IPSec VPN in Yunnan Datong Company;

IPSec VPN based on Secure SMS system;

Use EAP-TLS and IPSEC-VPN Construct Secure WLAN;

Based on PEP-IPSec to achieve satellite IP network security;