802.11g Wireless 4-port Router User's Guide

ManualsBrandsZyXEL Communications ManualsNetwork RouterG-2000 Plus

391

392

393

394

395

396

397

398

399

400

Table Of Contents

User’s Guide
Copyright
- Disclaimer
- Trademarks
Federal Communications Commission (FCC) Interference Statement
- Notice 1
- Certifications
ZyXEL Limited Warranty
- Note
- Safety Warnings
Customer Support
Table of Contents
List of Figures
List of Tables
Preface
- About This User's Guide
- Related Documentation
- User Guide Feedback
- Syntax Conventions
- Graphics Icons Key
Getting to Know Your ZyAIR
- 1.1 Introducing the ZyAIR
- 1.2 ZyAIR Features
  - 1.2.1 Physical Features
  - 1.2.2 Firmware Features
- 1.3 Applications for the ZyAIR
  - 1.3.1 Internet Access Application
Introducing the Web Configurator
- 2.1 Web Configurator Overview
- 2.2 Accessing the ZyAIR Web Configurator
- 2.3 Resetting the ZyAIR
  - 2.3.1 .Procedure To Use The Reset Button
  - 2.3.2 Method of Restoring Factory-Defaults Via Web Configurator
- 2.4 Navigating the ZyAIR Web Configurator
Wizard Setup
- 3.1 Wizard Setup Overview
- 3.2 Wizard Setup: General Setup
- 3.3 Wizard Setup: Wireless LAN
- 3.4 Wizard Setup: Screen 3
- 3.5 Wizard Setup: Screen 4
- 3.6 Wizard Setup: Screen 5
- 3.7 Basic Setup Complete
System Screens
- 4.1 System Overview
- 4.2 Configuring General Setup
- 4.3 Dynamic DNS
  - 4.3.1 DynDNS Wildcard
- 4.4 Configuring Dynamic DNS
- 4.5 Configuring Password
- 4.6 Configuring Time Setting
LAN Screens
- 5.1 LAN Overview
- 5.2 DHCP Setup
  - 5.2.1 IP Pool Setup
  - 5.2.2 System DNS Servers
- 5.3 LAN TCP/IP
- 5.4 Configuring IP
- 5.5 Configuring Static DHCP
- 5.6 Configuring IP Alias
Wireless Configuration and Roaming
- 6.1 Wireless LAN Overview
- 6.2 Wireless LAN Basics
  - 6.2.1 RTS/CTS
  - 6.2.2 Fragmentation Threshold
- 6.3 Configuring Wireless
- 6.4 Configuring Roaming
  - 6.4.1 Requirements for Roaming
Wireless Security
- 7.1 Wireless Security Overview
- 7.2 Security Parameters Summary
- 7.3 WEP Overview
  - 7.3.1 Data Encryption
    - 7.3.1.1 Authentication
- 7.4 Configuring WEP Encryption
- 7.5 Introduction to WPA
- 7.6 Configuring WPA-PSK Authentication
- 7.7 Wireless Client WPA Supplicants
  - 7.7.1 WPA with RADIUS Application Example
- 7.8 Configuring WPA Authentication
- 7.9 Introduction to RADIUS
  - 7.9.1 Types of RADIUS Messages
- 7.10 Configuring RADIUS
- 7.11 802.1x Overview
- 7.12 Dynamic WEP Key Exchange
- 7.13 Configuring 802.1x and Dynamic WEP Key Exchange
- 7.14 Configuring 802.1x and Static WEP Key Exchange
- 7.15 Configuring 802.1x
- 7.16 MAC Filter
Internal RADIUS Server
- 8.1 Internal RADIUS Overview
- 8.2 Internal RADIUS Server Setting
- 8.3 Trusted AP Overview
- 8.4 Configuring Trusted AP
- 8.5 Trusted Users Overview
- 8.6 Configuring Trusted Users
WAN
- 9.1 WAN Overview
- 9.2 Configuring WAN ISP
- 9.3 TCP/IP Priority (Metric)
- 9.4 Configuring WAN IP
- 9.5 Configuring WAN MAC
Single User Account (SUA) / Network Address Translation (NAT)
- 10.1 NAT Overview
- 10.2 Using NAT
  - 10.2.1 SUA (Single User Account) Versus NAT
- 10.3 SUA Server
- 10.4 Configuring SUA Server
- 10.5 Configuring Address Mapping
  - 10.5.1 Configuring Address Mapping
- 10.6 Trigger Port Forwarding
  - 10.6.1 Trigger Port Forwarding Example
  - 10.6.2 Two Points To Remember About Trigger Ports
- 10.7 Configuring Trigger Port Forwarding
Static Route Screens
- 11.1 Static Route Overview
- 11.2 Configuring IP Static Route
  - 11.2.1 Configuring Route Entry
Remote Management Screens
- 12.1 Remote Management Overview
- 12.2 Configuring WWW
- 12.3 Configuring Telnet
- 12.4 Configuring TELNET
- 12.5 Configuring FTP
- 12.6 SNMP
- 12.7 Configuring DNS
- 12.8 Configuring Security
UPnP
- 13.1 Universal Plug and Play Overview
- 13.2 UPnP and ZyXEL
- 13.3 Configuring UPnP
- 13.4 Installing UPnP in Windows Example
  - 13.4.1 Installing UPnP in Windows Me
  - 13.4.2 Installing UPnP in Windows XP
- 13.5 Using UPnP in Windows XP Example
Firewalls
- 14.1 Firewall Overview
- 14.2 Types of Firewalls
- 14.3 Introduction to ZyXEL’s Firewall
- 14.4 Denial of Service
  - 14.4.1 Basics
  - 14.4.2 Types of DoS Attacks
    - 14.4.2.1 ICMP Vulnerability
    - 14.4.2.2 Traceroute
- 14.5 Stateful Inspection
- 14.6 Guidelines For Enhancing Security With Your Firewall
- 14.7 Packet Filtering Vs Firewall
  - 14.7.1 Packet Filtering:
    - 14.7.1.1 When To Use Filtering
  - 14.7.2 Firewall
    - 14.7.2.1 When To Use The Firewall
Firewall Screens
- 15.1 Access Methods
- 15.2 Firewall Policies Overview
- 15.3 Rule Logic Overview
- 15.4 Connection Direction Examples
  - 15.4.1 LAN to WAN Rules
  - 15.4.2 WAN to LAN Rules
- 15.5 Alerts
- 15.6 Configuring Firewall
- 15.7 Example Firewall Rule
- 15.8 Predefined Services
Content Filtering
- 16.1 Introduction to Content Filtering
- 16.2 Restrict Web Features
- 16.3 Days and Times
- 16.4 Configure Content Filtering
Certificates
- 17.1 Certificates Overview
  - 17.1.1 Advantages of Certificates
- 17.2 Self-signed Certificates
- 17.3 Configuration Summary
- 17.4 My Certificates
- 17.5 Certificate File Formats
- 17.6 Importing a Certificate
- 17.7 Creating a Certificate
- 17.8 My Certificate Details
- 17.9 Trusted CAs
- 17.10 Importing a Trusted CA’s Certificate
- 17.11 Trusted CA Certificate Details
Log Screens
- 18.1 Configuring View Log
- 18.2 Configuring Log Settings
- 18.3 Configuring Reports
Maintenance
- 19.1 Maintenance Overview
- 19.2 System Status Screen
  - 19.2.1 System Statistics
- 19.3 DHCP Table Screen
- 19.4 Association List
- 19.5 F/W Upload Screen
- 19.6 Configuration Screen
- 19.7 Restart Screen
Introducing the SMT
- 20.1 SMT Introduction
- 20.2 Connect to your ZyAIR Using Telnet
  - 20.2.1 Entering Password
- 20.3 Changing the System Password
- 20.4 ZyAIR SMT Menu Overview Example
- 20.5 Navigating the SMT Interface
  - 20.5.1 System Management Terminal Interface Summary
- 20.6 Changing the System Password
General Setup
- 21.1 General Setup
  - 21.1.1 Procedure To Configure Menu 1
  - 21.1.2 Procedure to Configure Dynamic DNS
Menu 2 WAN Setup
- 22.1 Introduction to WAN
- 22.2 WAN Setup
LAN Setup
- 23.1 LAN Setup
  - 23.1.1 General Ethernet Setup
- 23.2 Protocol Dependent Ethernet Setup
- 23.3 TCP/IP Ethernet Setup and DHCP
  - 23.3.1 IP Alias Setup
- 23.4 Wireless LAN Setup
  - 23.4.1 Configuring MAC Address Filter
Internet Access
- 24.1 Introduction to Internet Access Setup
- 24.2 Ethernet Encapsulation
- 24.3 Configuring the PPTP Client
- 24.4 Configuring the PPPoE Client
- 24.5 Basic Setup Complete
Remote Node Configuration
- 25.1 Introduction to Remote Node Setup
- 25.2 Remote Node Profile Setup
- 25.3 Edit IP
- 25.4 Remote Node Filter
Static Route Setup
- 26.1 IP Static Route Setup
Dial-in User Setup
- 27.1 Dial-in User Setup
Network Address Translation (NAT)
- 28.1 Using NAT
  - 28.1.1 SUA (Single User Account) Versus NAT
- 28.2 Applying NAT
- 28.3 NAT Setup
  - 28.3.1 Address Mapping Sets
    - 28.3.1.1 User-Defined Address Mapping Sets
    - 28.3.1.2 Ordering Your Rules
- 28.4 Configuring a Server behind NAT
- 28.5 General NAT Examples
- 28.6 Configuring Trigger Port Forwarding
Filter Configuration
- 29.1 Introduction to Filters
  - 29.1.1 The Filter Structure of the ZyAIR
- 29.2 Configuring a Filter Set
- 29.3 Example Filter
- 29.4 Filter Types and NAT
- 29.5 Firewall Versus Filters
- 29.6 Applying a Filter
  - 29.6.1 Applying LAN Filters
  - 29.6.2 Applying Remote Node Filters
Enabling the Firewall
- 30.1 Remote Management and the Firewall
- 30.2 Access Methods
- 30.3 Enabling the Firewall
SNMP Configuration
- 31.1 About SNMP
- 31.2 Supported MIBs
- 31.3 SNMP Configuration
- 31.4 SNMP Traps
System Security
- 32.1 System Security
System Information and Diagnosis
- 33.1 System Status
- 33.2 System Information
  - 33.2.1 System Information
  - 33.2.2 Console Port Speed
- 33.3 Log and Trace
- 33.4 Diagnostic
  - 33.4.1 WAN DHCP
Firmware and Configuration File Maintenance
- 34.1 Filename Conventions
- 34.2 Backup Configuration
- 34.3 Restore Configuration
  - 34.3.1 Restore Using FTP
  - 34.3.2 Restore Using FTP Session Example
- 34.4 Uploading Firmware and Configuration Files
System Maintenance and Information
- 35.1 Command Interpreter Mode
- 35.2 Call Control Support
  - 35.2.1 Budget Management
  - 35.2.2 Call History
- 35.3 Time and Date Setting
  - 35.3.1 Resetting the Time
Remote Management
- 36.1 Remote Management
- 36.2 Remote Management and NAT
- 36.3 System Timeout
Call Scheduling
- 37.1 Introduction to Call Scheduling
Appendix A
- Troubleshooting
Appendix B
- Brute-Force Password Guessing Protection
  - Example
Appendix C
- Setting up Your Computer’s IP Address
Appendix D
- IP Address Assignment Conflicts
Appendix E
- IP Subnetting
Appendix F
- Command Interpreter
  - Command Syntax
  - Command Usage
Appendix G
- Log Descriptions
  - Log Commands
    - Configuring What You Want the ZyAIR to Log
    - Displaying Logs
  - Log Command Example
Appendix H
- Wireless LAN and IEEE 802.11
Appendix I
- Wireless LAN With IEEE 802.1x
Appendix J
- Types of EAP Authentication
Appendix K
- Antenna Selection and Positioning Recommendation
Appendix L
- Power Adaptor Specifications
Index
- Numerics
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- Z

ZyAIR G-2000 Plus User’s Guide

Appendix D 394

In this case, the subscribers are not able to access the Internet.

Figure 233 IP Address Conflicts: Case D

This problem can be solved by adding a VLAN-enabled switch or set the computers to obtain

IP addresses dynamically.