Nat: What It Is And How It Is So Important Now

Network Address Translation (NAT), the process of transforming an Internet protocol address to another Internet-Protocol Address. Simply, the process of assigning an IP address to another. Why do we need IP NAT and a map in another? The answer is a little much. Currently, IPv4, to clarify the IP addresses of all computers connected to the Internet. But we know that the current rise in popularity of the Internet makes it difficult single IP address for all computers connected to the Internet. The growth of large firms shows, thousands of computers in a company is nothing, and in many networks of thousands of miles computers are available. Is it possible, a single address for all computers of this type of large companies? No, if the idea of invented NAT.

With the concept of Network Address Translation (NAT), we can easily assign Internet Protocol address for all computers in large enterprises, some addresses to date. Before we say, they must know the concept of the private IP address and public IP address. Message IP address is a series of addresses that are not for connecting to the Internet. The private internet protocol addresses are below.

10.0.0.0 at 10255255255

172.16.0.0 to 172.31.255.255

192.168.0.0 to 192168255255

The computers of the company and a local network by using private addresses. But with private IP addresses can access the Internet. Thus, the company must be purchased a number of public IP addresses with NAT and it is the private IP address of the existing public Internet Protocol address. Thus, we can avoid the headaches when allocating IP address for all computers in the company. The implementation of losing, we are deprived of Internet Protocol addresses, but we can of the same set of private IP addresses of computers in a network. Thus, the NTA and the concept of access to the Internet Protocol addresses to help us better use of the Internet Protocol address.

Types of NAT

NAT is in the following categories.

1. Static NAT

2. Dynamic NAT

3. Port Address Translation (PAT)

Static, not a NAT (private) IP address is a mark (public) Internet Protocol address. This type of association is a meadow.

Dynamic NAT in a pool of public IP address is a subnet of private IP. This association is not predefined but is dynamic.In Port Address Translation (PAT) is no more Internet Protocol addresses map to a single IP address recorded by several TCP / UDP port numbers