The network address translation (NAT) table is what allows devices on a private network to access a public network, such as the internet. There is often only one entry point between the public network and the private network, and that entry point is usually a router. The router itself has a public-facing IP address, but the devices on the private network (“hidden” behind the router) only have private IP addresses. When data packets move from the private network to the public network, those private IP addresses need to be “translated” into a public IP address that’s compatible with the public...
Read the full article: Is Your Router Slow? It Might Be Your NAT Table
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