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ZyXEL Communications VSG1435-B101 manual 196

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Chapter 12 Network Address Translation (NAT)

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196	VSG1435-B101 Series User’s Guide

Contents

Default Login Details www.zyxel.com Page About This User's Guide Page Document Conventions Page Safety Warnings Page Contents Overview Page Table of Contents Part II: Technical Reference Page Page Page Page Page Page Page Page Page Page Introducing the VSG1435-B101 1.1 Overview 1.2 Ways to Manage the ZyXEL Device 1.3Good Habits for Managing the ZyXEL Device 1.4Applications for the ZyXEL Device 1.4.1 Internet Access WLAN 1.4.2 HomePNA 1.4.3 ZyXEL Device’s USB Support 1.5 Hardware Setup Page 1.6 Hardware Connections 1.7LEDs (Lights) Page 1.8 The RESET Button 1.9Wireless Access 1.9.1 Using the WLAN/WPS Button Page The Web Configurator 2.1 Overview 2.1.1Accessing the Web Configurator Page Page 2.2 Web Configurator Layout 2.2.1Title Bar 2.2.2 Main Window 2.2.3 Navigation Panel Page Page Page Quick Start 3.1 Overview 3.2Quick Start Setup Page Tutorials 4.1 Overview 4.2Setting Up an ADSL PPPoE Connection Page Page 4.3 HomePNA Example Setup Page 4.4 Setting Up a Secure Wireless Network 4.4.1 Configuring the Wireless Network Settings Page 4.4.2Using WPS Page Wireless Client ZyXEL Device Page 4.4.3 Without WPS 4.5 Setting Up Multiple Wireless Groups Page Page 4.6Setting Up NAT Port Forwarding Page 4.7Configuring Static Route for Routing to Another Network Page 4.8 Configuring QoS Queue and Class Setup Page Page 4.9Access the ZyXEL Device Using DDNS 4.9.1 Registering a DDNS Account on www.dyndns.org 4.9.2 Configuring DDNS on Your ZyXEL Device 4.9.3 Testing the DDNS Setting 4.10Access Your Shared Files From a Computer Page Page Page Network Map and Status Screens 5.1 Overview 5.2 The Network Map Screen Page 5.3 The Status Screen Page Page Page Broadband 6.1 Overview 6.1.1 What You Need to Know 6.1.2 Before You Begin 6.2 The Broadband Screen 6.2.1 Add/Edit Broadband 6.2.2 PPPoE Encapsulation Page Page Page Page 6.2.2.1 Bridge Page Page 6.3 Technical Reference 6.3.1 Encapsulation 6.3.2 Multiplexing 6.3.3 VPI and VCI 6.3.4 IP Address Assignment 6.3.5 NAT 6.3.6 Traffic Shaping 6.3.7 ATM Traffic Classes 6.3.8 Introduction to VLANs Page Wireless 7.1 Overview 7.1.1 What You Can Do in this Chapter 7.1.2 What You Need to Know 7.2 The General Screen Page Page 7.2.1 No Security 7.2.2 Basic (WEP Encryption) Page 7.2.3 More Secure (WPA(2)-PSK) 7.2.4 WPA(2) Authentication Page 7.3 The More AP Screen 7.3.1 Edit More AP 7.4 MAC Authentication Page 7.5 The WPS Screen 7.6 The WMM Screen 7.7 The WDS Screen Page 7.7.1 WDS Scan 7.8 The Others Screen 7.9 Technical Reference 7.9.1 Wireless Network Overview Page 7.9.2 Additional Wireless Terms 7.9.3 Wireless Security Overview 7.9.3.2 MAC Address Filter 7.9.3.3 User Authentication 7.9.3.4 Encryption 7.9.4 Signal Problems 7.9.5 BSS 7.9.6 MBSSID 7.9.7 Preamble Type 7.9.8 Wireless Distribution System (WDS) 7.9.9 WiFi Protected Setup (WPS) 7.9.9.2 PIN Configuration 7.9.9.3 How WPS Works Page 7.9.9.4 Example WPS Network Setup 7.9.9.5 Limitations of WPS Page Home Networking 8.1 Overview 8.1.1What You Can Do in this Chapter 8.1.2 What You Need To Know 8.1.3 Before You Begin 8.2 The LAN Setup Screen Page 8.3 The Static DHCP Screen 8.4 The UPnP Screen 8.5 Installing UPnP in Windows Example Page Page 8.6Using UPnP in Windows XP Example Page Page Page Page 8.7 Technical Reference 8.7.2 DHCP Setup 8.7.3 DNS Server Addresses 8.7.4LAN TCP/IP Page Page Static Routing 9.1 Overview 9.2 The Routing Screen 9.2.1 Add/Edit Static Route Page Quality of Service (QoS) 10.1 Overview 10.1.1What You Can Do in this Chapter 10.2What You Need to Know 10.3 The Quality of Service General Screen 10.4 The Queue Setup Screen Page 10.4.1 Adding a QoS Queue 10.5 The Class Setup Screen Page 10.5.1 Add/Edit QoS Class Page Page Page 10.6 The QoS Policer Setup Screen 10.6.1 Add/Edit a QoS Policer 10.7 The QoS Monitor Screen 10.8 Technical Reference Page Page Page Page Policy Forwarding 11.1 Overview 11.2 The Policy Forwarding Screen 11.2.1 Add/Edit Policy Forwarding Page Page Network Address Translation (NAT) 12.1 Overview 12.1.1What You Can Do in this Chapter 12.1.2What You Need To Know 12.2 The Port Forwarding Screen LANWAN 12.2.1 Add/Edit Port Forwarding 12.3 The Applications Screen 12.3.1 Add New Application 12.4 The Port Triggering Screen Page 12.4.1 Add/Edit Port Triggering Rule Page 12.5 The DMZ Screen 12.6 The ALG Screen 12.7 The Sessions Screen 12.8 Technical Reference 12.8.1 NAT Definitions 12.8.2 What NAT Does 12.8.3 How NAT Works 12.8.4 NAT Application Page Page Dynamic DNS Setup 13.1 Overview 13.1.1What You Can Do in this Chapter 13.1.2What You Need To Know 13.2 The DNS Entry Screen 13.2.1 Add/Edit DNS Entry 13.3 The Dynamic DNS Screen Page Page IGMP 14.1 Overview 14.1.1What You Can Do in this Chapter 14.1.2What You Need to Know Page Page 14.2 The IGMP General Screen Page 14.3 IGMP Filter Configuration Page 14.3.1 IGMP Host Limitation Edit 14.3.2 IGMP Service Add 14.3.3 IGMP Host Limitation Add 14.4 IGMP ACL Configuration 14.4.1 IGMP ACL Add Interface Group 15.1 Overview 15.1.1 What You Can Do in this Chapter 15.2 The Interface Group Screen Page 15.2.1 Interface Group Configuration Page Firewall 16.1 Overview 16.1.1What You Can Do in this Chapter 16.1.2 What You Need to Know 16.2 The Firewall Screen 16.3 The Protocol Screen Page 16.3.1 Add a Protocol 16.4 The Access Control Screen Page 16.4.1 Add/Edit an ACL Rule Page Page MAC Filter 17.1 Overview 17.2 The MAC Filter Screen Page Parental Control 18.1 Overview 18.2 The Parental Control Screen 18.2.1 Add/Edit Parental Control Rule Page Page Scheduler Rules 19.1 Overview 19.2 The Scheduler Rules Screen 19.2.1 Add/Edit a Schedule Certificates 20.1 Overview 20.1.1What You Can Do in this Chapter 20.2 What You Need to Know 20.3 The Local Certificates Screen 20.3.1 Create Certificate Request 20.3.2 Load Signed Certificate 20.3.3 Import Certificate Page 20.3.4 Certificate Details Page 20.4 The Trusted CA Screen 20.4.1 View Trusted CA Certificate 20.4.2 Import Trusted CA Certificate Page IPSec 21.1 Overview 21.1.1What You Can Do in this Chapter 21.1.2 What You Need to Know 21.2 The IPSec Status Screen 21.3 The IPSec Settings Screen 21.3.1 Add/Edit IPSec Setting Page Page Page 21.3.1.2 Manual Key Setup 21.3.1.3 Security Parameter Index (SPI) 21.3.2 Configuring Manual Key Page 21.4 Technical Reference 21.4.1 IPSec Architecture 21.4.2 Encapsulation 21.4.3 IKE Phases 21.4.4 Negotiation Mode 21.4.5IPSec and NAT 21.4.6 VPN, NAT, and NAT Traversal 21.4.7 ID Type and Content 21.4.8 Pre-SharedKey 21.4.9 Diffie-Hellman(DH) Key Groups Service Control 22.1 Overview 22.2 The Service Control Screen Page ARP Table 23.1 Overview 23.1.1 How ARP Works 23.2 ARP Table Screen Logs 24.1 Overview 24.1.1What You Can Do in this Chapter 24.1.2What You Need To Know 24.2 The System Log Screen 24.3 The Security Log Screen Page Traffic Status 25.1 Overview 25.1.1What You Can Do in this Chapter 25.2 The WAN Status Screen Page 25.3 The LAN Status Screen Page Page IGMP Status 26.1 Overview 26.1.1What You Can Do in this Chapter 26.2 The IGMP Group Screen 26.3 IGMP Statistics Screen Page Page Users Configuration 27.1 Overview 27.2 The Users Configuration Screen Page 27.2.1 Add/Edit a Users Account Page Remote Management 28.1 Overview 28.1.1What You Can Do in this Chapter 28.2 The TR-069Clients Screen Page 28.3 The TR-064Screen Page Time Settings 29.1 Overview 29.2 The Time Setting Screen Page Page Page Logs Setting 30.1 Overview 30.2 The Log Settings Screen Page 30.2.1 Example E-mailLog Page Firmware Upgrade 31.1 Overview 31.2 The Firmware Screen Page Configuration 32.1 Overview 32.2 The Configuration Screen Page Page 32.3 The Reboot Screen Diagnostic 33.1 Overview 33.2 The Diagnostic Screen Page Troubleshooting 34.1Power, Hardware Connections, and LEDs 34.2ZyXEL Device Access and Login Page 34.3Internet Access Page 34.4Wireless Internet Access Page Page Product Specifications 35.1 Hardware Specifications 35.2 Firmware Specifications Page Page Page Page Page Windows 95/98/Me Page Page Windows 2000/NT/XP Page Page Page Windows Vista Page Page Page Page Page Page Macintosh OS 8/9 Page Macintosh OS Linux Page Page Page Page Page Introduction to IP Addresses Structure Subnet Masks Page Notation Subnetting Page Example: Four Subnets Example: Eight Subnets Subnet Planning Configuring IP Addresses Page Page Internet Explorer Pop-upBlockers Page Page JavaScripts Page Java Permissions Page Mozilla Firefox Page Page Wireless LAN Topologies Page Channel RTS/CTS Page Fragmentation Threshold IEEE 802.11g Wireless LAN Wireless Security Overview IEEE RADIUS Types of EAP Authentication Page Dynamic WEP Key Exchange WPA and WPA2 Page Page Security Parameters Summary Antenna Overview Antenna Characteristics Types of Antennas for WLAN Positioning Antennas Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Copyright Certifications Page ZyXEL Limited Warranty Page Index