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首先介绍了IPSec协议和NAT的基本原理,然后在分析IPSec和NAT兼容性问题的基础上,给出了利用UDP封装IPSec数据包的解决方案。
Firstly, the basic principles of IPSec and NAT are introduced. Then based on the analysis of IPSec and NAT compatibility, a solution of encapsulating IPSec packets using UDP is given.