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本文针对IPSec协议和NAT协议的冲突问题,对IETF的基于UDP封装的IPSec—NAT穿越方案,提出一种UDP封装的改进方案。该方案通过对IPSec协议的扩展,有效地支持了IPSec数据流传输路径中的NAT。
In this paper, aiming at the conflict between IPSec protocol and NAT protocol, an improved UDP encapsulation scheme is proposed for IETF IPSec-NAT traversal scheme based on UDP encapsulation. The solution effectively supports NAT in the IPSec data stream transmission path by extending the IPSec protocol.