What is NAT? | D-Link DI-774 guide

Frequently Asked Questions (continued)

What is NAT?

NAT stands for Network Address Translator. It is proposed and described in RFC- 1631 and is used for solving the IP Address depletion problem. Basically, each NAT box has a table consisting of pairs of local IP Addresses and globally unique addresses, by which the box can “translate” the local IP Addresses to global address and vice versa. Simply put, it is a method of connecting multiple computers to the Internet (or any other IP network) using one IP Address.

D-Link´s broadband routers support NAT. With proper configuration, multiple users can access the Internet using a single account via the NAT device.

For more information on RFC-1631: The IP Network Address Translator (NAT), visit http://www.faqs.org/rfcs/rfc1631.html

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D-Link DI-774 manual What is NAT?

Contents

Link Air Xpert DI-774 Contents Package Contents Introduction LAN ports WAN port is PowerAdapter Features LEDs Front Panel of Unit Wireless Basics Wireless Basics Setting up a Wireless Infrastructure2 Network Getting Started Using the Configuration Menu Home Wizard Using the Configuration Menu Home Wireless Open or Shared Wireless Settings Key Type Home Wireless Open or Shared Channel AuthenticationWEP Encryption Keys Lifetime Home Wireless WPA AuthenticationRadius Server Home Wireless WPA-PSK Home WAN Dynamic IP Address Host Name MAC Address Clone Primary/Secondary DNS Home WAN Static IP Address Subnet Mask Gateway Address Primary/ Secondary DNS Home WAN PPPoE PasswordService Name PPPoE Auto-reconnect MaximumIdle Time Home LAN Home Dhcp Dynamic Host Control Protocol. Advanced Virtual Server Example #1 Example #2 Name Trigger Port Trigger Type Public Port Advanced ApplicationsPublic Type Port Advanced Filters IP FiltersIP Filters Protocol Types Advanced Filters URL Blocking Filters URL Blocking- Keywords Advanced Filters MAC Filters Filters MAC Filters Name MAC Address Dhcp Client Domain Blocking Advanced Filters Domain BlockingFilters Permitted Domains Action Advanced FirewallFirewall Rules Source Advanced DMZ DMZ Performance WirelessTransmit Power Beacon interval Data Rate TX Rates Select Open system or Shared Key User Login Name Advanced Performance 802.11g CTS ModeTools Admin Administrator Login Name Admin Password Default Tools AdminTools Time Load Settings from Tools System System Settings Save Settings toRestore to Factory Tools Firmware Upgrade Browse Restart Device Tools MiscPing Test Discard Ping Tools Cable Test Status Device Info Log SettingsStatus Log View Log Email Address Status Log Log Settings Smtp Server IP AddressLog Type Status Wireless Connected Client List Status Stats Help Networking Basics Microsoft Windows XP Networking Basics Enter a Computer description and a Computer name optional Workgroup name Networking Basics Networking Basics Networking Basics Network Setup Wizard Naming your Computer Right-click on My Computer Checking the IP Address in Windows XP Computer name Support tab Control Panel Connections Network ConnectionsProperties Assigning a Static IP Address Windows XP/2000 Assigning a Static IP Address with Macintosh OSX Selecting a Dynamic IP Address with Macintosh OSX Checking the Wireless Connection by Pinging in Windows Me Troubleshooting Troubleshooting Select Hardware Tab Manager Adapters Why can’t I get a wireless connection? Why does my wireless connection keep dropping? Resetting the DI-774 to Factory Default Settings Technical Specifications Advanced Firewall Features Technical Specifications Wireless Transmit Power Frequently Asked Questions Why can´t I access the web based configuration? Frequently Asked Questions LAN Settings button How can I find my IP Address in Windows 95, 98, or ME? How can I find my IP Address in Windows 2000/XP? How can I assign a Static IP Address in Windows XP? Places and select Properties Yes Network Neigborhood icon Win ME My Click on the DNS Configuration tab Click Specify an IP Address Dynamic Cable connection Static Cable Connection Frequently Asked Questions To set up your router How do I open ports on my router? How do I configure the DMZ Host? What is DMZ?Demilitarized Zone DI-774 Frequently Asked Questions How do I use PC Anywhere with my router? What are virtual servers? Click Click Continue How can I use eDonkey behind my D-Link router? Firewall How do I set up my router for Socom on my Playstation 2? How can I use Gamespy behind my D-Link router? Private Port Public Port How do I configure my router for KaZaA and Grokster? Configure the Game Port information on each computer How do I configure my router to play Warcraft 3?For the DI-604, DI-614+. DI-624, DI-754, DI-764, or DI-774 How do I set up my router to use iChat? -for Macintosh users How do I use NetMeeting with my D-Link router? Step Then Virtual Server Choose Apple menu System Preferences Choose View Sharing Frequently Asked Questions What is NAT? Technical Support Warranty and Registration USA onlyPage Important Note