What is NAT? How does it work? What are its benefits?

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Suresh Chand · Accepted Answer

NAT stands for network address translation. It’s a way to map multiple local private addresses to a public one before transferring the information. Organizations that want multiple devices to employ a single IP address use NAT, as do most home routers. Working of NAT: Let’s say that there is a laptop connected to a home router. Someone uses the laptop to search for directions to their favorite restaurant. The laptop sends this request in a packet to the router, which passes it along to the web. But first, the router changes the outgoing IP address from a private local address to a public address. If the packet keeps a private address, the receiving server won’t know where to send the information back to — this is akin to sending physical mail and requesting return service but providing a return address of anonymous. By using NAT, the information will make it back to the laptop using the router’s public address, not the laptop’s private one. Benefits of NAT: It allows you to rescue the private IP address. It has got good security features that enhance the security of private networks by separating the internal network from the external network. It helps to conserve the IP address space. You can connect a large number of hosts using a small IP address to the global internet.

What is NAT? How does it work? What are its benefits?

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What is NAT? How does it work? What are its benefits?

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