NAT Example, NAT Types | ZyXEL Communications P2000W guide

P-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 that may be implemented on a router in front of the Prestige.

•Full Cone

•Restricted Cone

•Port Restricted Cone

•Symmetric

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ZyXEL Communications P2000W manual NAT Example, NAT Types

Contents

2000WV2 Page Copyright DisclaimerTrademarks 2000WV2 User’s Guide Certifications Sales@voipon.co.uk Tel +44 01245 Fax +44 01245 2000WV2 User’s Guide Safety Warnings Safety Warnings ZyXEL Limited Warranty Customer Support Customer Support United Kingdom Page Table of Contents Chapter Network Settings 10.1 Appendix a Appendix C Page List of Figures List of Figures Prestige as a PPPoE Client List of Tables List of Tables Preface About Your PrestigeRelated Documentation Syntax Conventions Graphics Icons Key Preface Features QoS Quality of ServiceGetting To Know Your Prestige Dynamic Jitter Buffer 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 2000WV2 User’s Guide Prestige Hardware Descriptions Page Using the LCD Screen Menus LCD Main Screen Using the LCD Screen Menus Navigating the LCD Screen MenusText Input 2000WV2 User’s Guide LCD Main Screen Press the OK key when you are done Page Wireless LAN Setup Menus Wireless LAN Setup Menus Tel +44 01245 808195 Fax +44 01245Site Survey Select Site Survey Network Mode Select Wireless in the first menu screen use the up or downWireless LAN Setup Menus Ssid Select Network Mode Channel Rate WEP Encryption Authentication Type Select Key Select Profiles Create Page Network Settings Fixed IPSelect IP Address Network Settings DhcpSelect Subnet Mask PPPoE Select PPPoE Name Clear the PPPoE password and enter your’s Select PPPoE Pwd SIP Settings Registrar ServerSelect Registrar Select Registrar IP SIP Settings Outbound Proxy ServerSelect Outbound Proxy Proxy Server Select Proxy Server User Account Select User Account Select Phone Number Username Page Phonebook Calling MethodsAdding a Phonebook Entry Select Phonebook in the first menu Editing Phonebook Entries Phonebook Erasing Phonebook Entries Speed Dial Phonebook Entries Select Speed Dial Call History Missed Calls Received Calls Call History Dialed Calls Erasing Calls Select Erase Calls Miscellaneous Settings Setting the Ring MelodyMiscellaneous Settings Tel +44 01245 808195 Fax +44 01245 Setting the Vibration Mode Adjusting the Ring VolumeSelect Ringer Volume Miscellaneous Settings Setting the Time Setting the DateSelect Edit Time Select Edit Date Setting the Banner Setting the Key LockSelect Settings in the first menu screen Press the Left key to save your setting Setting the Don’t Disturb Select Don’t DisturbPage Information Menus Displaying Information Select Firmware Ver Information Menus Using the Phonebook to Dial a Telephone Number Using Speed Dial to Dial a Telephone NumberPrestige Usage Dialing a Telephone Number Changing the Volume Answering a CallRejecting a Call Prestige Usage Using the Web Configurator Screens Introduction to the Web ConfiguratorLogin Accounts Navigating the Prestige Web Configurator Using the Web Configurator Screens Web Configurator User Screens Summary Web Configurator Administrator Screens SummaryPage User Web Configurator Screens Device InformationIP Address Assignment Private IP Address Ranges User Web Configurator Screens IP Address and Subnet MaskMAC Address Network Configuration Static DNS Server Network Configuration Dhcp CancelApply Dhcp Network Configuration PPPoE PPPoE Network Configuration VoIP Introduction 12.9.1 SIPSIP Identities PPPoE SIP Call Progression SIP Client ServerSIP Call Progression Invite SIP Proxy Server SIP Configuration 12.9.1.4 RTP 12.11 NAT SIP Proxy NAT Example NAT Types Full Cone NAT NAT Types Restricted Cone NAT Full Cone NAT Example Port Restricted Cone NAT Symmetric NAT NAT and SIP SIP ALGFake WAN Address on SIP and RTP NAT Traversal Configuration StunOutbound Proxy NAT Traversal Configuration ALG Phonebook Configuration PhonebookCalling Methods Stun Delete EditClear Wireless Introduction Wireless SettingsWEP Encryption Ssid WEP 12.19 S/W Update SystemSubmit W Update Zip files before you can upload them Administrator Web Configurator Screens SIP Proxy Configuration Administrator Web Configurator Screens SIP Configuration SIP URI 2000WV2 User’s Guide SIP Configuration Voice Coding13.3.1 G.711 Pstn Call Setup Signaling Phone Setting13.3.2 G.729 Same codec as the Prestige Quality of Service System Settings 13.8 ToS Introduction to DiffServ Troubleshooting Problems Starting Up the PrestigeProblems Using the Keypad Troubleshooting the Start-Up of Your Prestige Problems Accessing the Prestige Troubleshooting Accessing the Prestige Error Message Troubleshooting Restoring the Factory Default SettingsError Message Troubleshooting DhcpPage Specification Tables Hardware SpecificationsMIC 2000WV2 User’s Guide Firmware Features HTTP, TFTP, TCP, UDP, DNS, ARP, IcmpEssid IP Addressing IP ClassesClasses of IP Addresses Subnet Masks SubnettingAllowed IP Address Range By Class Natural Masks Example Two Subnets Alternative Subnet Mask NotationTwo Subnets Example Subnet Example Four Subnets Example Eight Subnets Eight SubnetsClass C Subnet Planning Subnetting With Class a and Class B Networks Class B Subnet PlanningPage PPPoE in Action Benefits of PPPoETraditional Dial-up Scenario How PPPoE Works Prestige as a PPPoE Client Wireless LAN Topologies Ad-hoc Wireless LAN Configuration ESS Roaming Infrastructure Wlan Requirements for Roaming Roaming Example 2000WV2 User’s Guide Page Index Numerics 711 24, 100 729 24, 101 IP-PBX PCM 100 130 Index Sales@voipon.co.uk Tel +44 01245 Fax +44 01245 Wlan