关键词: IPSec, 网络协议, 数据通信安全

Abstract:

IPSec is a suits of security protocol which provide IP layer security,and it get more and more attention with develop of IP network,used in the 4^th generation wireless communication and IPv6.This paper deals with the process of IPSec protocol,security architecture,and finally analyses some flaw including AH and ESP protocol,and then find a reasonable solution for IPSec through NAT.

Key words: IPSec;network protocol;data communication security