本帖最后由 我是人 于 2013-4-6 14:42 编辑
楼主进错论坛了。。。
这里是无管理灌水交流论坛。
编辑:
在superuser找到这个
The term Cisco IPsec is just a marketing ploy which basically means plain IPsec using ESP in tunnel mode without any additional encapsulation, and using the Internet Key Exchange protocol (IKE) to establish the tunnel. IKE provides several authentication options, preshared keys (PSK) or X.509 certificates combined with Extended Authentication (XAUTH) user authentication are the most common.
http://superuser.com/questions/378252/cisco-ipsec-versus-l2tp-ipsec |