Port Address Translation of NAT allows several hundred workstations to access the internet with asingle public internet address.
What do you mean by NAT?
Network address translation (NAT) is a method of mapping one IP address space to another by altering network address information in packet IP headers while they are being routed through a trafficrouting device. When a network was moved or when the upstream Internet serviceprovider was switched but could not route the network's address space, the technique was originally employed to avoid the requirement to assign a new address to every site.
Port Address Translation (PAT) is a Network Address Translation (NAT) extension that allows numerousLAN devices to be mapped to a single public IP address in order to save IP addresses.