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Question regarding NAT

Must every router support NAT, since it has two netowrk segments to connect? The way I understand NAT is: it translates local IP addresses to WAN IP address, and remembers which local IP sends information to what IP, so it can pass back the information to the proper LAN port.

If this is correct, then any router needs to support NAT, otherwise LAN addresses couldnt communicate through WAN port.

Is there also a switch, or access point, that supports NAT? If yes, can you point me to some product model, and tell me their purpose?

RoutersWireless HardwareSwitches / Hubs

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8/22/2022 - Mon