With the appearance of the problem from practical work, the authors put forward a solution and detailed methods to connect the hospital internal LAN to external medical insure net using ACL and NAT.

结合实际工作中出现的问题，在保证内部网络安全和满足医院医疗服务的前提下，作者提出了利用A CL与NAT技术，实现医院内部信息网与外部医保网络对接的解决方案，并给出了具体的实现方法。

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