Network address translation (NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. [1]

Network address translation traversal is a computer networking technique of establishing and maintaining Internet Protocol connections across gateways that implement network address translation (NAT). NAT traversal techniques are required for many network applications, such as peer-to-peer file sharing and voice over IP. [1]

Dec 11, 2024 · Learn the six types of NAT and how each one is used to improve network security, performance, and connectivity.

Jan 9, 2024 · NAT is a method used in networking to modify network address information in IP packet headers while they are in transit across a traffic routing device. The primary purpose of NAT is to limit the number of public IP addresses an organization or network must use, for both economy and security purposes.

Feb 4, 2025 · Network Address Translation (NAT) is a process in which one or more local IP addresses are translated into one or more Global IP addresses and vice versa to provide Internet access to the local hosts. It also does the translation of port numbers, i.e., masks the port number of the host with another port number in the packet that will be routed ...

May 6, 2023 · NAT stands for Network Address Translation. It is a protocol that is used to map a private IPv4 address to a public IPv4 address. The translation process is performed by a traffic-routing device like a router.

Jan 15, 2025 · NAT rules are the instructions that tell a router or firewall how to translate the IP addresses and ports in the packet headers. These rules are defined to specify how incoming and outgoing traffic should be handled. A NAT rule typically includes: Source IP address/Port: The internal address or port that is attempting to initiate communication.

NAT maps multiple private IP addresses within a home or organization to a single public IP address and vice versa - effectively hiding a network of devices behind a single IP address. Consider an office with multiple computers - each of which needs a unique IP address.

This document defines Network Address Translation (NAT), introduces types of NAT and how NAT works. This chapter provides the application scenarios and implementation principles of source NAT, destination NAT (including static NAT and dynamic NAT), and bidirectional NAT on the NAT firewall device.

Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in IP header of packets while they are in transit across a traffic routing device. Or to put it in plain terms, NAT allows devices with private IP addresses to communicate with hosts via the internet using IP ...