Document Outline

• NBG420N
  • About This User's Guide
  • Document Conventions
  • Safety Warnings
  • Contents Overview
  • Table of Contents
  • List of Figures
  • List of Tables
• Introduction
  • Getting to Know Your NBG420N
    • 1.1 Overview
    • 1.2 Router Mode
    • 1.3 AP Mode
    • 1.4 Router Features vs. AP Features
    • 1.5 Ways to Manage the NBG420N
    • 1.6 Good Habits for Managing the NBG420N
    • 1.7 LEDs
  • The WPS Button
    • 2.1 Overview
  • Introducing the Web Configurator
    • 3.1 Web Configurator Overview
    • 3.2 Accessing the Web Configurator
    • 3.3 Resetting the NBG420N
      • 3.3.1 Procedure to Use the Reset Button
    • 3.4 Navigating the Web Configurator
    • 3.5 The Status Screen in Router Mode
      • 3.5.1 Navigation Panel
      • 3.5.2 Summary: Any IP Table
      • 3.5.3 Summary: Bandwidth Management Monitor
      • 3.5.4 Summary: DHCP Table
      • 3.5.5 Summary: Packet Statistics
      • 3.5.6 Summary: VPN Monitor
      • 3.5.7 Summary: Wireless Station Status
  • Connection Wizard
    • 4.1 Wizard Setup
    • 4.2 Connection Wizard: STEP 1: System Information
      • 4.2.1 System Name
      • 4.2.2 Domain Name
    • 4.3 Connection Wizard: STEP 2: Wireless LAN
      • 4.3.1 Basic (WEP) Security
      • 4.3.2 Extend (WPA-PSK or WPA2-PSK) Security
    • 4.4 Connection Wizard: STEP 3: Internet Configuration
      • 4.4.1 Ethernet Connection
      • 4.4.2 PPPoE Connection
      • 4.4.3 PPTP Connection
      • 4.4.4 Your IP Address
      • 4.4.5 WAN IP Address Assignment
      • 4.4.6 IP Address and Subnet Mask
      • 4.4.7 DNS Server Address Assignment
      • 4.4.8 WAN IP and DNS Server Address Assignment
      • 4.4.9 WAN MAC Address
    • 4.5 Connection Wizard: STEP 4: Bandwidth management
    • 4.6 Connection Wizard Complete
  • AP Mode
    • 5.1 AP Mode Overview
    • 5.2 Setting your NBG420N to AP Mode
    • 5.3 The Status Screen in AP Mode
      • 5.3.1 Navigation Panel
    • 5.4 Configuring Your Settings
      • 5.4.1 LAN Settings
      • 5.4.2 WLAN and Maintenance Settings
    • 5.5 Logging in to the Web Configurator in AP Mode
  • Tutorials
    • 6.1 Wireless Tutorials
      • 6.1.1 How to Connect to the Internet from an AP
      • 6.1.2 Configure Wireless Security Using WPS on both your NBG420N and Wireless Client
        • 6.1.2.1 Push Button Configuration (PBC)
        • 6.1.2.2 PIN Configuration
      • 6.1.3 Enable and Configure Wireless Security without WPS on your NBG420N
      • 6.1.4 Configure Your Notebook
    • 6.2 Site-To-Site VPN Tunnel Tutorial
      • 6.2.1 Configuring Bob’s NBG420N VPN Settings
      • 6.2.2 Configuring Jack’s NBG420N VPN Settings
      • 6.2.3 Checking the VPN Connection
• Network
  • Wireless LAN
    • 7.1 Wireless Network Overview
    • 7.2 Wireless Security Overview
      • 7.2.1 SSID
      • 7.2.2 MAC Address Filter
      • 7.2.3 User Authentication
      • 7.2.4 Encryption
    • 7.3 Roaming
      • 7.3.1 Requirements for Roaming
    • 7.4 Quality of Service
      • 7.4.1 WMM QoS
        • 7.4.1.1 WMM QoS Priorities
    • 7.5 General Wireless LAN Screen
      • 7.5.1 No Security
      • 7.5.2 WEP Encryption
      • 7.5.3 WPA-PSK/WPA2-PSK
      • 7.5.4 WPA/WPA2
    • 7.6 MAC Filter
    • 7.7 Wireless LAN Advanced Screen
    • 7.8 Quality of Service (QoS) Screen
      • 7.8.1 Application Priority Configuration
    • 7.9 WiFi Protected Setup
      • 7.9.1 WPS Screen
      • 7.9.2 WPS Station Screen
      • 7.9.3 Scheduling
    • 7.10 iPod Touch Web Configurator
      • 7.10.1 Login Screen
      • 7.10.2 System Status
      • 7.10.3 WPS in Progress
      • 7.10.4 Port Forwarding
    • 7.11 Accessing the iPod Touch Web Configurator
      • 7.11.1 Accessing the iPod Touch Web Configurator
  • WAN
    • 8.1 WAN Overview
    • 8.2 WAN MAC Address
    • 8.3 Multicast
    • 8.4 Internet Connection
      • 8.4.1 Ethernet Encapsulation
      • 8.4.2 PPPoE Encapsulation
      • 8.4.3 PPTP Encapsulation
    • 8.5 Advanced WAN Screen
  • LAN
    • 9.1 LAN Overview
      • 9.1.1 IP Pool Setup
      • 9.1.2 System DNS Servers
    • 9.2 LAN TCP/IP
      • 9.2.1 Factory LAN Defaults
      • 9.2.2 IP Address and Subnet Mask
      • 9.2.3 Multicast
      • 9.2.4 Any IP
    • 9.3 LAN IP Screen
    • 9.4 LAN IP Alias
    • 9.5 Advanced LAN Screen
  • DHCP
    • 10.1 DHCP
    • 10.2 DHCP General Screen
    • 10.3 DHCP Advanced Screen
    • 10.4 Client List Screen
  • Network Address Translation (NAT)
    • 11.1 NAT Overview
    • 11.2 Using NAT
      • 11.2.1 Port Forwarding: Services and Port Numbers
      • 11.2.2 Configuring Servers Behind Port Forwarding Example
    • 11.3 General NAT Screen
    • 11.4 NAT Application Screen
      • 11.4.1 Game List Example
    • 11.5 Trigger Port Forwarding
      • 11.5.1 Trigger Port Forwarding Example
      • 11.5.2 Two Points To Remember About Trigger Ports
    • 11.6 NAT Advanced Screen
  • Dynamic DNS
    • 12.1 Dynamic DNS Introduction
      • 12.1.1 DynDNS Wildcard
    • 12.2 Dynamic DNS Screen
• Security
  • Firewall
    • 13.1 Introduction to ZyXEL’s Firewall
      • 13.1.1 What is a Firewall?
      • 13.1.2 Stateful Inspection Firewall
      • 13.1.3 About the NBG420N Firewall
      • 13.1.4 Guidelines For Enhancing Security With Your Firewall
    • 13.2 Triangle Routes
      • 13.2.1 Triangle Routes and IP Alias
    • 13.3 General Firewall Screen
    • 13.4 Services Screen
      • 13.4.1 The Add Firewall Rule Screen
  • Content Filtering
    • 14.1 Introduction to Content Filtering
    • 14.2 Restrict Web Features
    • 14.3 Days and Times
    • 14.4 Filter Screen
    • 14.5 Schedule
    • 14.6 Customizing Keyword Blocking URL Checking
      • 14.6.1 Domain Name or IP Address URL Checking
      • 14.6.2 Full Path URL Checking
      • 14.6.3 File Name URL Checking
  • IPSec VPN
    • 15.1 IPSec VPN Overview
      • 15.1.1 What You Can Do in the IPSec VPN Screens
      • 15.1.2 What You Need To Know About IPSec VPN
      • 15.1.3 IKE SA (IKE Phase 1) Overview
        • 15.1.3.1 IP Addresses of the NBG420N and Remote IPSec Router
      • 15.1.4 IPSec SA (IKE Phase 2) Overview
        • 15.1.4.1 Local Network and Remote Network
    • 15.2 The General Screen
      • 15.2.1 VPN Rule Setup (Basic)
      • 15.2.2 VPN Rule Setup (Advanced)
      • 15.2.3 VPN Rule Setup (Manual)
        • 15.2.3.1 IPSec SA Using Manual Keys
        • 15.2.3.2 IPSec SA Proposal Using Manual Keys
        • 15.2.3.3 Authentication and the Security Parameter Index (SPI)
    • 15.3 The SA Monitor Screen
    • 15.4 VPN and Remote Management
    • 15.5 IPSec VPN Technical Reference
• Management
  • Static Route Screens
    • 16.1 Static Route Overview
    • 16.2 IP Static Route Screen
      • 16.2.1 Static Route Setup Screen
  • Bandwidth Management
    • 17.1 Bandwidth Management Overview
    • 17.2 Application-based Bandwidth Management
    • 17.3 Subnet-based Bandwidth Management
    • 17.4 Application and Subnet-based Bandwidth Management
    • 17.5 Bandwidth Management Priorities
    • 17.6 Predefined Bandwidth Management Services
      • 17.6.1 Services and Port Numbers
    • 17.7 Default Bandwidth Management Classes and Priorities
    • 17.8 Bandwidth Management General Configuration
    • 17.9 Bandwidth Management Advanced Configuration
      • 17.9.1 Rule Configuration with the Pre-defined Service
      • 17.9.2 Rule Configuration: User Defined Service Rule Configuration
    • 17.10 Bandwidth Management Monitor
  • Remote Management
    • 18.1 Remote Management Overview
      • 18.1.1 Remote Management Limitations
      • 18.1.2 Remote Management and NAT
      • 18.1.3 System Timeout
    • 18.2 WWW Screen
    • 18.3 Telnet
    • 18.4 Telnet Screen
    • 18.5 FTP Screen
    • 18.6 DNS Screen
  • Universal Plug-and-Play (UPnP)
    • 19.1 Introducing Universal Plug and Play
      • 19.1.1 How do I know if I'm using UPnP?
      • 19.1.2 NAT Traversal
      • 19.1.3 Cautions with UPnP
    • 19.2 UPnP and ZyXEL
    • 19.3 UPnP Screen
    • 19.4 Installing UPnP in Windows Example
      • 19.4.0.1 Installing UPnP in Windows Me
      • 19.4.0.2 Using UPnP in Windows XP Example
• Maintenance and Troubleshooting
  • System
    • 20.1 System Overview
    • 20.2 System General Screen
    • 20.3 Time Setting Screen
  • Logs
    • 21.1 View Log
    • 21.2 Log Settings
    • 21.3 Log Descriptions
  • Tools
    • 22.1 Firmware Upload Screen
    • 22.2 Configuration Screen
      • 22.2.1 Backup Configuration
      • 22.2.2 Restore Configuration
      • 22.2.3 Back to Factory Defaults
    • 22.3 Restart Screen
    • 22.4 Wake On LAN
  • Configuration Mode
  • Sys Op Mode
    • 24.1 Overview
      • 24.1.1 Router
      • 24.1.2 AP
    • 24.2 Selecting System Operation Mode
  • Language
    • 25.1 Language Screen
  • Troubleshooting
    • 26.1 Power, Hardware Connections, and LEDs
    • 26.2 NBG420N Access and Login
    • 26.3 Internet Access
    • 26.4 Resetting the NBG420N to Its Factory Defaults
    • 26.5 Wireless Router/AP Troubleshooting
    • 26.6 Advanced Features
• Appendices and Index
  • Product Specifications and Wall- Mounting Instructions
  • Pop-up Windows, JavaScripts and Java Permissions
  • IP Addresses and Subnetting
  • Setting up Your Computer’s IP Address
    • 26.6.1 Verifying Settings
  • Wireless LANs
    • 26.6.2 WPA(2)-PSK Application Example
    • 26.6.3 WPA(2) with RADIUS Application Example
  • Services
  • Legal Information
  • Customer Support
  • Index