NAT Example, NAT Types | ZyXEL Communications 2000W specification

Prestige 2000W_V2 User’s Guide

12.11.1 NAT Example

See the following figure. The Prestige (X) sends packets to the Internet. The Prestige’s IP address is 10.0.0.3 (a private IP address). The NAT router maps the private source IP address to a public source IP address (a.b.c.d).

Note: The NAT figures in this chapter use lower-case letters (like a.b.c.d for example) to represent public IP addresses.

Figure 20 NAT: Outgoing

When the NAT router receives packets with destination address IP address a.b.c.d, the NAT router changes a.b.c.d back to the private IP address 10.0.0.3 and sends it to the Prestige.

Figure 21 NAT: Incoming

12.11.2 NAT Types

This section discusses the following NAT types:

•Full Cone

•Restricted Cone

•Port Restricted Cone

•Symmetric

82	Chapter 12 User Web Configurator Screens

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ZyXEL Communications 2000W manual NAT Example, NAT Types

Contents

Prestige 2000WV2 Page Trademarks CopyrightDisclaimer Prestige 2000WV2 User’s Guide Federal Communications Commission FCC Interference Statement Certifications Safety Warnings Safety Warnings ZyXEL Limited Warranty ZyXEL Limited Warranty Customer Support Customer Support United Kingdom Table of Contents Chapter Network Settings Chapter Information Menus Appendix a Product Specifications 107 Appendix B Appendix C Prestige 2000WV2 User’s Guide Table of Contents List of Figures List of Figures Peer-to-Peer Communication in an Ad-hoc Network 119 List of Tables List of Tables Eight Subnets Related Documentation PrefaceAbout Your Prestige Syntax Conventions User Guide Feedback Graphics Icons Key Features Getting To Know Your Prestige Applications Place a Call via SIP Proxy Server SIP Call Server Ad-Hoc Wireless Intercom Direct IP to IP Calling Getting to Know the Prestige Hardware Prestige Hardware Descriptions Prestige 2000WV2 User’s Guide Prestige 2000WV2 User’s Guide Getting To Know Your Prestige Using the LCD Screen Menus Using the LCD Screen MenusLCD Main Screen Text Input Navigating the LCD Screen MenusPrestige 2000WV2 User’s Guide LCD Main Screen Press the OK key when you are done Prestige 2000WV2 User’s Guide Using the LCD Screen Menus Site Survey Wireless LAN Setup MenusWireless LAN Setup Menus Select Site Survey Ssid Network ModeSelect Wireless in the first menu screen use the up or down Arrow to highlight it and then press the Left key Select Network Mode Channel Rate WEP Encryption Authentication Type Select Key Select WEP for encryption, not for authentication Profiles Create Prestige 2000WV2 User’s Guide Wireless LAN Setup Menus Fixed IP Network SettingsNetwork Settings Select IP Address Dhcp Select Subnet Mask PPPoE Select PPPoE Name Select PPPoE Pwd Registrar Server SIP SettingsSIP Settings Select Registrar Select Registrar IP Select Expiry Time Outbound Proxy ServerSelect Outbound Proxy Proxy Server Select Proxy Server User Account Select User Account Select Phone Number Select User Pwd Prestige 2000WV2 User’s Guide SIP Settings Adding a Phonebook Entry PhonebookCalling Methods Phonebook Editing Phonebook Entries Select Add Entry Erasing Phonebook Entries Speed Dial Phonebook Entries Select Speed Dial Missed Calls Call HistoryCall History Received Calls Dialed Calls Erasing Calls Select Erase Calls Setting the Ring Melody Miscellaneous SettingsMiscellaneous Settings Adjusting the Ring Volume Setting the Vibration ModeSelect Ringer Volume Select Edit Time Setting the TimeSetting the Date Select Edit Date Select Settings in the first menu screen Setting the BannerSetting the Key Lock Press the Left key to save your setting Setting the Don’t Disturb Select Don’t Disturb Prestige 2000WV2 User’s Guide Miscellaneous Settings Select MAC Address Information MenusDisplaying Information Information Menus 11Select Firmware Ver Prestige Usage Using the Phonebook to Dial a Telephone NumberUsing Speed Dial to Dial a Telephone Number Dialing a Telephone Number Answering a Call Changing the VolumeRejecting a Call Login Using the Web Configurator ScreensIntroduction to the Web Configurator Using the Web Configurator Screens Navigating the Prestige Web Configurator Login Screen NAT Trvsl Web Configurator User Screens SummarySIP Phone Book Phone Web Configurator Administrator Screens SummaryTOS/DS Device Information User Web Configurator ScreensUser Web Configurator Screens IP Address Assignment IP Address and Subnet Mask MAC Address Network Configuration Static DNS Server Cancel Network Configuration DhcpApply Dhcp Network Configuration PPPoE PPPoE Network Configuration SIP Identities VoIP Introduction12.9.1 SIP PPPoE SIP Call Progression SIP Call ProgressionSIP Client Server Invite SIP Proxy Server SIP Configuration 12.9.1.4 RTP 12.11 NAT SIP Proxy NAT Example NAT Types Full Cone NAT Full Cone Restricted Cone Port Restricted Symmetric Restricted Cone NAT Full Cone NAT Example Port Restricted Cone NAT Symmetric NAT SIP ALG NAT and SIPFake WAN Address on SIP and RTP Stun NAT Traversal ConfigurationOutbound Proxy NAT Traversal Configuration ALG Calling Methods Phone Book ConfigurationPhone Book Stun Phonebook Delete WEP Encryption Wireless IntroductionWireless Settings Prestige 2000WV2 User’s Guide Phonebook Ssid WEP System 12.19 S/W UpdateSubmit W Update Zip files before you can upload them Administrator Web Configurator Screens Administrator Web Configurator Screens SIP Proxy Configuration Type the SIP proxy server settings SIP Configuration SIP URI Voice Coding Prestige 2000WV2 User’s Guide IP Configuration13.3.1 G.711 Phone Setting Pstn Call Setup Signaling13.3.2 G.729 100 Administrator Web Configurator Screens Quality of Service Administrator Web Configurator Screens 101 13.8 ToS 102 Administrator Web Configurator ScreensIntroduction to DiffServ Problems Starting Up the Prestige TroubleshootingProblems Using the Keypad Troubleshooting Accessing the Prestige Problems Accessing the Prestige104 Troubleshooting Error Message Troubleshooting Error Message TroubleshootingRestoring the Factory Default Settings Troubleshooting 105 Prestige 2000WV2 User’s Guide 106 Troubleshooting Appendix a Product Specifications 107 Specification TablesHardware Specifications MIC HTTP, TFTP, TCP, UDP, DNS, ARP, Icmp Prestige 2000WV2 User’s Guide Firmware Features108 Appendix a Product Specifications Essid Classes of IP Addresses IP AddressingIP Classes Appendix B IP Subnetting 109 Allowed IP Address Range By Class Subnet MasksSubnetting Natural Masks Two Subnets Example Example Two SubnetsAlternative Subnet Mask Notation Appendix B IP Subnetting 111 Subnet 112 Appendix B IP Subnetting Example Four Subnets Appendix B IP Subnetting 113 Class C Subnet Planning Example Eight SubnetsEight Subnets 114 Appendix B IP Subnetting Class B Subnet Planning Subnetting With Class a and Class B NetworksAppendix B IP Subnetting 115 Prestige 2000WV2 User’s Guide 116 Appendix B IP Subnetting Traditional Dial-up Scenario PPPoE in ActionBenefits of PPPoE Appendix C PPPoE 117 How PPPoE Works Prestige as a PPPoE Client Ad-hoc Wireless LAN Configuration Wireless LAN TopologiesAppendix D Wireless LANs 119 Basic Service Set 120 Appendix D Wireless LANs Appendix D Wireless LANs 121 Infrastructure Wlan Prestige 2000WV2 User’s Guide 122 Appendix D Wireless LANs Index 123 IndexNumerics Dtmf 124 Index 711 22, 98 729 22, 99 Index 125 126 Index SIP ALG Index 127 Wlan