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Port forwarding automatic9/1/2023 ![]() The router then reads the request and masks ( maps) your device’s IP address and port with the router’s public-facing IP address and a relevant port. Your device is the host or source for the connection. When you’d like to connect to the internet - say, to check your email, visit social media, or access cloud file storage - a connection request gets sent from your device to the router, detailing your device’s IP address and an associated port for the request. ![]() That IP address is unique to your device on the network, which is important for the router in identifying the device. is assigned an IP address on that network through a process called DHCP (Dynamic Host Configuration Protocol). Once connected, your device - laptop, cell phone, tablet, etc. It typically (but not always) requires a password or some form of authentication to connect. A “private LAN” could be your home Wi-Fi, your office Wi-Fi, or even the free Wi-Fi at a coffee shop.
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