Explain the NAT (Network Address Translation), PAT (Port Address Translation), Dynamic NAT and Static NAT
NAT as Network Address Translation Network Address Translation (NAT) is the process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP addresses an organization or company must use, for both economy and security purposes. The Purpose of NAT There are three purpose to define NAT: Provides a type of firewall by hiding internal IP addresses Enables a company to use more internal IP addresses. Since they're used internally only, there's no possibility of conflict with IP addresses used by other companies and organizations. Allows a company to combine multiple ISDN connections into a single Internet connection. NAT - Network Address Translation The Requirements of NAT - Network Address Translation Its a kind of shortage of the public IPv4 address space has forced the all of us to think harder about alternative ways of addressing net...