From the course: AWS Certified Solutions Architect - Associate (SAA-C03) Cert Prep (February 2025)

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Network address translation (NAT)

Network address translation (NAT) - Amazon Web Services (AWS) Tutorial

From the course: AWS Certified Solutions Architect - Associate (SAA-C03) Cert Prep (February 2025)

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Network address translation (NAT)

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In this episode, we're going to talk about network address translation or as it's otherwise known, simply NAT. NAT translates a single external address to multiple internal addresses. Now, in most cases, the external address is a true external Internet address. In other words, you use the NAT device between your private network and the Internet. And rather than all of the devices on your network needing an actual IP address that works on the Internet, they simply use the NAT server to get to the Internet. And what the NAT server does is it keeps track of the internal address that requested communication from some remote Internet based IP address. And when it gets a response back, it forwards it back to that internal system. Now in addition, external addresses may be another internal network address in less common implementations. So for example, you could use NAT between two internal private networks. That's not as…

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