PAT (Port Address Translation) uses port numbers to convert private IP addresses to global IP addresses.
Dynamic NAT works with the same logic compared to Static and PAT. In both structures, they convert private IP addresses on the local network to global IP addresses.
Static NAT is a one-to-one assignment between the internal address and the external address. This NAT type allows external devices to initiate connections to internal devices through a statically assigned public address. For example, only a specific internal global address can be assigned so that the user can access an internal webserver from an external network.