ZyXEL Communications ZW50 Manuals

Manuals and User Guides for ZyXEL Communications ZW50. We have 1 ZyXEL Communications ZW50 manual available for free PDF download: User Manual

ZyXEL Communications ZW50 User Manual (322 pages)

Internet Security Gateway

Brand: ZyXEL Communications | Category: Gateway | Size: 4.6 MB

Copyright
2
Information for Canadian Users
4
Declaration of Conformity
5
Zyxel Limited Warranty
6
Customer Support
7
Table of Contents
8
List of Figures
19
Preface
31
Getting Started
33
Chapter 1 Getting to Know Your Zywall

35
Chapter 2 Hardware Installation

41
- Front Panel Leds and Back Panel Ports
  41
Chapter 3 Initial Setup

47
Chapter 4 General and WAN Setup

57
- System Name
  57
- Dynamic DNS
  57
- Figure 4-1 Configure Dynamic DNS
  58
- Table 4-1 Configure Dynamic DNS Menu Fields
  58
- WAN Setup
  59
- Figure 4-2 Menu 2 - WAN Setup
  60
- Table 4-2 WAN Setup Menu Fields
  60
Chapter 5 LAN Setup

63
Chapter 6 Internet Access

71
Chapter 7 Firewalls

118
- What Is a Firewall
  118
- Types of Firewalls
  118
  - Packet Filtering Firewalls
    118
  - Application-Level Firewalls
    118
  - Stateful Inspection Firewalls
    119
  - Introduction to Zyxel's Firewall
    119
  - Denial of Service
    120
    
    Basics
    120
    
    Figure 7-1 Zywall Firewall Application
    120
    
    Table 7-1 Common IP Ports
    121
    
    Types of Dos Attacks
    121
    
    Figure 7-2 Three-Way Handshake
    122
    
    Figure 7-3 SYN Flood
    122
    
    Figure 7-4 Smurf Attack
    123
    
    Table 7-2 ICMP Commands that Trigger Alerts
    123
  - Stateful Inspection
    124
    
    Table 7-3 Legal Netbios Commands
    124
    
    Table 7-4 Legal SMTP Commands
    124
    
    Figure 7-5 Stateful Inspection
    125
    
    Stateful Inspection Process
    125
    
    Stateful Inspection and the Zywall
    126
    
    TCP Security
    127
    
    UDP/ICMP Security
    127
    
    Upper Layer Protocols
    128
  - Guidelines for Enhancing Security with Your Firewall
    128
    
    Security in General
    129
  - Packet Filtering Vs Firewall
    129
    
    Firewall
    130
    
    Packet Filtering
    130
Chapter 8 Introducing the Zywall Firewall

132
- Remote Management and the Firewall
  132
- Access Methods
  132
- Using Zywall SMT Menus
  132
  - Activating the Firewall
    132
  - Figure 8-1 Menu 21 - Filter and Firewall Setup
    132
  - Viewing the Firewall Log
    133
  - Figure 8-2 Menu 21.2 - Firewall Setup
    133
  - Figure 8-3 Example Firewall Log
    133
  - Table 8-1 View Firewall Log
    133
Chapter 9 Using the Zywall Web Configurator

136
- Web Configurator Login and Main Menu Screens
  136
- Figure 9-1 Main Menu
  137
- Enabling the Firewall
  138
- E-Mail
  138
  - Alerts
    138
  - Figure 9-2 Enabling the Firewall
    138
  - Logs
    139
  - Figure 9-3 E-Mail Screen
    139
  - Table 9-1 E-Mail
    140
  - SMTP Error Messages
    141
  - Example E-Mail Log
    141
  - Table 9-2 SMTP Error Messages
    141
  - Attack Alert
    142
    
    Figure 9-4 E-Mail Log
    142
    
    Threshold Values
    142
    
    Half-Open Sessions
    143
    
    Tcp Maximum Incomplete and Blocking Time
    143
    
    Figure 9-5 Attack Alert
    144
    
    Table 9-3 Attack Alert
    144
Chapter 10 Creating Custom Rules

148
- Rules Overview
  148
- Rule Logic Overview
  148
  - Rule Checklist
    148
  - Security Ramifications
    149
  - Key Fields for Configuring Rules
    149
- Connection Direction
  150
  - LAN to WAN Rules
    150
  - Figure 10-1 LAN to WAN Traffic
    150
  - Source Address
    150
  - Destination Address
    150
  - WAN to LAN Rules
    151
- Rule Summary
  151
- Figure 10-2 WAN to LAN Traffic
  151
- Figure 10-3 Firewall Rules Summary - First Screen
  152
- Table 10-1 Firewall Rules Summary - First Screen
  152
- Predefined Services
  154
- Timeout
  160
Chapter 11 Custom Ports

164
- Introduction
  164
- Figure 11-1 Custom Ports
  164
- Table 11-1 Custom Ports
  165
- Creating/Editing a Custom Port
  166
- Figure 11-2 Creating/Editing a Custom Port
  166
- Table 11-2 Creating/Editing a Custom Port
  167
Chapter 12 Logs

168
- Log Screen
  168
- Figure 12-1 Log Screen
  168
- Table 12-1 Log Screen
  169
Chapter 13 Example Firewall Rules

170
- Examples
  170
Chapter 14 Content Filtering

184
- Categories
  184
  - Restrict Web Features
    184
  - Filter List
    184
  - Days and Times
    184
- Update List
  184
  - Exempt Computers
    184
  - Customizing
    185
  - Keywords
    185
  - Log Records
    185
- Advanced Management
  186
Chapter 15 Filter Configuration

187
- About Filtering
  187
Chapter 16 SNMP Configuration

207
- About SNMP
  207
- Figure 16-1 SNMP Management Model
  208
- Supported Mibs
  209
- Configuring SNMP
  209
- Table 16-1 General SNMP Commands
  209
- SNMP Traps
  210
- Figure 16-2 Menu 22 - SNMP Configuration
  210
- Table 16-2 SNMP Configuration Menu Fields
  210
- Table 16-3 SNMP Traps
  211
Chapter 17 System Information & Diagnosis

213
Chapter 18 Firmware and Configuration Maintenance

227
Chapter 19 System Maintenance & Information

245
- Command Interpreter Mode
  245
- Figure 19-1 Command Mode in Menu 24
  245
- Call Control Support
  246
  - Budget Management
    246
  - Figure 19-2 Valid Commands
    246
  - Figure 19-3 Call Control
    246
  - Figure 19-4 Budget Management
    247
  - Table 19-1 Budget Management
    247
  - Call History
    248
  - Figure 19-5 Call History
    248
  - Table 19-2 Call History Fields
    248
  - Time and Date Setting
    249
    
    Figure 19-6 Menu 24 - System Maintenance
    249
    
    Figure 19-7 Menu 24.10 System Maintenance - Time and Date Setting
    250
    
    Table 19-3 Time and Date Setting Fields
    250
    
    Resetting the Time
    251
Chapter 20 Remote Management

253
- Telnet
  253
- Ftp
  253
- Figure 20-1 Telnet Configuration on a TCP/IP Network
  253
- Web
  254
- Remote Management
  254
- Call Scheduling and Vpn/Ipsec
  257
Chapter 21 Call Scheduling

259
- Figure 21-1 Menu 26 - Schedule Setup
  259
Chapter 22 Introduction to Ipsec

263
- Vpn
  263
- Ipsec
  263
- Security Association
  263
- Other Terminology
  263
- VPN Applications
  264
- Figure 22-1 Encryption and Decryption
  264
- Ipsec Architecture
  265
  - Figure 22-2 VPN Application
    265
  - Figure 22-3 Ipsec Architecture
    266
  - Ipsec Algorithms
    266
  - Key Management
    266
- Encapsulation
  267
  - Transport Mode
    267
  - Tunnel Mode
    267
- Ipsec and NAT
  267
- Figure 22-4 Transport and Tunnel Mode Ipsec Encapsulation
  267
- Table 22-1 VPN and NAT
  268
Chapter 23 Vpn/Ipsec Setup

269
- Vpn/Ipsec Setup
  269
- Figure 23-1 VPN SMT Menu Tree
  269
- Ipsec Algorithms
  270
- Ipsec Summary
  271
- IKE Setup
  278
  - IKE Phases
    278
  - Negotiation Mode
    279
  - Figure 23-8 Two Phases to Set up the Ipsec SA
    279
  - Pre-Shared Key
    280
  - Diffie-Hellman (DH) Key Groups
    280
  - Perfect Forward Secrecy (PFS)
    280
  - Figure 23-9 Menu
    281
  - Table 23-5 Menu 27.1.1.1 - IKE Setup
    282
  - Manual Setup
    283
    
    Active Protocol
    283
    
    Security Parameter Index (SPI)
    283
    
    Table 23-6 Active Protocol - Encapsulation and Security Protocol
    283
    
    Figure 23-10 Menu 27.1.1.2 - Manual Setup
    284
    
    Table 23-7 Menu 27.1.1.2 - Manual Setup
    284
Chapter 24 SA Monitor

287
- Introduction
  287
- Figure 24-1 Menu 27.2 - SA Monitor
  287
- Table 24-1 Menu 27.2 - SA Monitor
  287
Chapter 25 Ipsec Log

289
Chapter 26 Troubleshooting

294
Appendix A the Big Picture

298
Appendix Bpppoe

300
- Pppoe in Action
  300
- Benefits of Pppoe
  300
- How Pppoe Works
  301
Appendix Cpptp

302
Appendix D Hardware Specifications

305
Appendix E Important Safety Instructions

306
Appendix F Boot Commands

308
Appendix G Firewall CLI Commands

310
Appendix H Power Adapter Specifications

315
- Index
  318

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ZyXEL Communications ZW50 Manuals

ZyXEL Communications ZW50 User Manual (322 pages)

Table of Contents

Chapter 1 Getting to Know Your Zywall

Chapter 2 Hardware Installation

Chapter 3 Initial Setup

Chapter 4 General and WAN Setup

Chapter 5 LAN Setup

Chapter 6 Internet Access

Chapter 7 Firewalls

Chapter 8 Introducing the Zywall Firewall

Chapter 9 Using the Zywall Web Configurator

Chapter 10 Creating Custom Rules

Chapter 11 Custom Ports

Chapter 12 Logs

Chapter 13 Example Firewall Rules

Chapter 14 Content Filtering

Chapter 15 Filter Configuration

Chapter 16 SNMP Configuration

Chapter 17 System Information & Diagnosis

Chapter 18 Firmware and Configuration Maintenance

Chapter 19 System Maintenance & Information

Chapter 20 Remote Management

Chapter 21 Call Scheduling

Chapter 22 Introduction to Ipsec

Chapter 23 Vpn/Ipsec Setup

Chapter 24 SA Monitor

Chapter 25 Ipsec Log

Chapter 26 Troubleshooting

Appendix A the Big Picture

Appendix Bpppoe

Appendix Cpptp

Appendix D Hardware Specifications

Appendix E Important Safety Instructions

Appendix F Boot Commands

Appendix G Firewall CLI Commands

Appendix H Power Adapter Specifications

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