摘要
GRE over IPSec是将GRE封装后的报文又封装到IPSec报文中的一种VPN应用技术,该技术克服了GRE VPN明文传输无加密功能而IPSEC VPN具有加密功能但只能封装在单播报文的缺陷,发挥了GRE和IPSec各自的独特功能,实现了对私网数据单播和组播加密传输,是企业构建Intranet/Extranet VPN网络实用技术。
GRE over IPSec is a kind of VPN application technology to encapsulate the packages that GRE is encapsulated to IPSec packages .It overcomes the defect that GRE VPN plaintext is trans-mitted without encryption and IPSEC VPN with encryption function can only be encapsulated in uni-cast packets .It plays the unique function of GRE and IPSec respectively .It achieves unicast and mul-ticast encryption transmission for the private network data .And it is a practical technology to con-struct the Intranet/Extranet VPN Network in enterprises .
出处
《青岛职业技术学院学报》
2014年第4期42-45,共4页
Journal of Qingdao Technical College
