Most home networks are built in two intersecting pieces, neither of which you ever have to worry about: On the internet service provider (ISP) side, that company provides a public-facing internet protocol (IP) address that anyone in the world can reach. This is required to establish outgoing connections, too.On your local network side, the router provided by the ISP or one you purchased creates a private IP network that uses numbers from a reserved range that can’t be reached
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