An IP address within three ranges of numbers that are set aside for the computers in local networks. Assigned to the devices in the network by the DHCP service in the router, these private addresses are not visible on the Internet.
The network address translation (NAT) function in the router converts the private addresses to the public address on the Internet side of the router, and that address is exposed to the world. See 192.168.1.1
and IP address
PRIVATE IP ADDRESS RANGES
From To CIDR
10.0.0.0 10.255.255.255 10/8
172.16.0.0 172.31.255.255 172.16/12
192.168.0.0 192.168.255.255 192.168/16
See DHCP autoconfiguration addressing.