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IPsec作为网络层的安全协议套件,是实现VPN的重要途径。在Linux系统下通过对网络部分代码的修改,可便捷地实现IPsec协议。该文结合笔者在Linux系统下实现IPsec的实践,描述了IPsec系统的基本结构和实现过程。
IPsec as the network layer security protocol suite, is an important way to achieve VPN. In the Linux system through the network part of the code changes, you can easily implement the IPsec protocol. This paper combines the author’s practice of IPsec in Linux system and describes the basic structure and implementation process of IPsec system.