The solution possesses the technology of NAT which contents user’s urgent need of connecting Internet, and includes the function of packet filter firewall and virtual private network which can resolve some security problems.
该方案具有NAT技术，能满足人们接入Internet的迫切要求，同时具有包过滤防火墙及虚拟专用网功能，能解决一定的安全问题。
参考来源 - 基于嵌入式Linux安全网关的研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
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