majority of NATs map multiple private hosts to one publicly exposed IP address. In a typical configuration, a local network uses one of the designated "private" IP address subnets (RFC 1918). A router on that network has a private address in that address space. The router is also connected to the Internet with a "public" address assigned by an Internet service provider.
det her: Det er altså ikke noget man ryger, hashing, det er når man ændrer en værdi til noget andet. 4a3a49bb857efbc7c353beece804e08923fec761ea783a1bbf6d91ef16242759