Which is the process that a wireless router uses to translate a private ip address on internal traffic to a routable address for the internet?

The process that a wireless router uses to translate a private ip address on internal traffic to a routable address for the internet is Network address translation (NAT).  It is a method of relabeling one IP address space into another by altering network address information in IP header of packets while they are in transit across a traffic routing device. 

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