Network Address Translation (NAT)
Explore different types of NAT and its role in conserving IPv4 addresses and providing network security.
What is Network Address Translation?
Welcome to the lesson on Network Address Translation (NAT)! NAT is a crucial technique used in computer networking, especially with IPv4.
Think of NAT as a clever translator for network addresses. It allows devices on a private network to communicate with the internet using a single public IP address.
Why NAT is Essential for IPv4
The main reason NAT became so important is the limited supply of IPv4 addresses. There simply aren't enough unique public IPv4 addresses for every device in the world.
- IPv4 Conservation: NAT helps conserve public IPv4 addresses by allowing many private devices to share one.
- Network Isolation: It also adds a layer of security by hiding the internal network structure from the outside world.
All lessons in this course
- IPv6 Addressing & Concepts
- Advanced Routing Protocols (RIP/OSPF)
- Network Address Translation (NAT)
- Subnetting and CIDR in Depth