Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » N »

NAT - Network Address Translation

NAT is short for Network Address Translation. NAT is an Internet standard that enables a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. A NAT box located where the LAN meets the Internet makes all necessary IP address translations.

The Purpose of NAT

NAT serves three main purposes:

  • Provides a type of firewallby 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.
  • Also see dynamic NAT and static NAT.







    TECH RESOURCES FROM OUR PARTNERS
    LATEST ARTICLES
    8 Agenda Apps to Help Students Stay Organized

    Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »

    20 Ways to Shorten a URL

    If you need to shorten a long URL try this list of 20 free online redirection services. Read More »

    Top 10 Tech Terms of 2015

    The most popular Webopedia definitions of 2015. Read More »

    STUDY GUIDES
    Computer Architecture Study Guide

    This Webopedia  study guide describes the different parts of a computer system and their relations. Read More »

    Network Fundamentals Study Guide

    Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

    The Five Generations of Computers

    Learn about each of the five generations of computers and major technology developments that have led to the current devices that we use today. Read More »