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Category Archives: NAT

NAT Implement


今天要來實作透過Cisco ISR達成NAT(Network Address Translation)的效果,提到NAT,不得不想到它是依據RFC 1918所定義的Private IP來與一般Internet上所使用的Public IP之間的轉換機制,為的是節省IP的使用量(使IPv6較晚來報到),但在效能與一些安全驗證的機制上表現較差,而NAT可以分為三種,分別是Static(一對一)Dynamic(多對少[內->外])Overload(多對一[內->外]),所以廢話不多說,直接上實作應該就會有感覺了,如下: Read more »

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