Static NAT

Marks:- 10+5

Name of student: Subhendu Pal

Faculty Name: Priya Sawant 

Roll No: 1503

Date: 09-02-2018

Session Name: IP Services

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 most common form of network translation involves a large private network using addresses in a private range (10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, or 192.168.0 0 to 192.168.255.255). The private addressing scheme works well for computers that only have to access resources inside the network, like workstations needing access to file servers and printers. Routers inside the private network can route traffic between private addresses with no trouble. However, to access resources outside the network, like the Internet, these computers have to have a public address in order for responses to their requests to return to them. This is where NAT comes into play.

Type of NAT:-

1) Static NAT--With this type of NAT, a NAT router maintains a table that associates each internal IP address with a corresponding external allocated (i.e., registered) Internet IP address. With static NAT, you must register an IP address for every machine that connects to the Internet. This approach isn't used very often because it doesn't save on registering IP addresses. However, static NAT can be useful for making devices accessible from the Internet--the external IP address will always point to the internal address stored on the NAT router.

Questions:-

1) What is NAT
2) Types of NAT

3) On which Cisco routing hardware is Cisco IOS NAT available? How can the hardware be ordered?

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Artificial Intelligence and Automation Make Waves in ShipNAT router maintains a table that associates each internal IP address with a corresponding external allocated (i.e., registered) Internet IP address. With static NAT, you must register an IP address for every machine that connects to the Internet. This approach isn't used very often because it doesn't save on registering IP addresses. However, static NAT can be useful for making devices accessible from the Internet--the external IP address will always point to the internal address stored on the NAT router.