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ZyXEL Communications Broadband Security Gateway P-312 User Manual (254 pages)

Broadband Security Gateway

Brand: ZyXEL Communications | Category: Gateway | Size: 1.93 MB

Declaration of Conformity
5
Table of Contents
9
- List of Figures
  16
- List of Tables
  23
- Log Screen
  25
- Preface
  27
Getting Started

29
Chapter 1 Getting to Know Your Prestige

31
Chapter 2 Hardware Installation & Initial Setup

35
- Front Panel Leds and Back Panel Ports
  35
  - Front Panel Leds
    35
- Front Panel
  35
  - Figure
    35
  - Figure
    36
  - Prestige 312 Rear Panel and Connections
    36
  - Additional Installation Requirements
    37
  - Figure 2-3 Initial Screen
    38
  - Housing
    38
  - Power up Your Prestige
    38
  - Navigating the SMT Interface
    39
    
    Figure 2-4 Password Screen
    39
    
    Main Menu
    40
    
    System Management Terminal Interface Summary
    40
- Prestige 312 Main Menu
  40
  - Figure
    40
  - Changing the System Password
    41
    
    Resetting the Prestige
    41
- Menu 23 - System Security
  41
  - Figure
    41
  - General Setup
    42
    
    Dynamic DNS
    42
    
    Figure 2-7 Menu 1 - General Setup
    42
    
    Configuring Dynamic DNS
    43
- Configure Dynamic DNS
  43
  - Figure
    43
  - WAN Setup
    44
  - LAN Setup
    45
- Menu 2 - WAN Setup
  45
Chapter 3 Internet Access

47
- TCP/IP and DHCP for LAN
  47
  - Factory LAN Defaults
    47
  - IP Address and Subnet Mask
    47
  - Private IP Addresses
    48
  - RIP Setup
    48
  - DHCP Configuration
    49
  - IP Multicast
    49
  - Figure 3-2 Partitioned Logical Networks
    50
  - IP Alias
    50
  - TCP/IP and DHCP Ethernet Setup
    50
  - Figure 3-1 Physical Network
    50
- Partitioned Logical Networks
  50
- Menu 3.2.1 - IP Alias Setup
  53
  - Figure
    53
  - Internet Access Setup
    54
    
    Ethernet Encapsulation
    54
- Menu 4 - Internet Access Setup (Ethernet)
  54
- Figure
  54
- Internet Access Setup (PPTP)
  54
- Internet Access Setup (Pppoe)
  54
  - PPTP Encapsulation
    55
  - Configuring the PPTP Client
    56
  - Pppoe Encapsulation
    56
    
    Figure
    56
    
    Figure 3-8 Internet Access Setup (Pppoe)
    57
    
    Basic Setup Complete
    58
Advanced Applications

59
Chapter 4 Remote Node Setup

60
Chapter 5 IP Static Route Setup

70
Chapter 6 Network Address Translation (NAT)

74
- Introduction
  74
  - NAT Definitions
    74
  - What NAT Does
    74
  - How NAT Works
    75
  - NAT Mapping Types
    75
  - Figure 6-1 How NAT Works
    75
  - SUA (Single User Account) Versus NAT
    76
  - Mapping Types
    76
  - NAT Application
    77
  - SMT Menus
    77
    
    Applying NAT in the SMT Menus
    77
    
    Figure 6-2 NAT Application
    77
- Applying NAT for Internet Access
  78
- Figure
  78
- Applying NAT to the Remote Node
  78
- Menu 15.1 Address Mapping Sets
  80
  - Figure
    80
  - Figure 6-7 SUA Address Mapping Rules
    80
  - SUA Address Mapping Rules
    80
- First Set in Menu 15.1.1
  82
  - Figure
    82
  - Editing an Individual Rule in a Set
    83
    
    Figure
    83
    
    Multiple Servers Behind NAT
    84
    
    NAT Server Sets
    84
    
    Configuring a Server Behind NAT
    85
    
    Figure 6-10 Multiple Servers Behind NAT
    85
    
    Examples
    86
    
    Figure 6-11 Menu 15.2 – NAT Server Setup
    86
    
    Internet Access Only
    86
  - Figure
    87
  - Internet Access & NAT Example
    87
    
    Figure 6-13 Internet Access & NAT Example
    87
    
    Example 2 - Internet Access with an Inside Server
    88
    
    Example 3 - General Case
    88
  - NAT Example 1
    87
- NAT Example 2
  88
Advanced Management

94
Chapter 7 Filter Configuration

96
- About Filtering
  96
- Menu 21.1.1.1 - TCP/IP Filter Rule
  103
  - Figure
    103
  - Figure 7-11 Menu 21.4.1.1 - Generic Filter Rule
    107
  - Generic Filter Rule
    107
  - Table 7-5 Generic Filter Rule Menu Fields
    108
  - Example Filter
    109
  - Figure 7-12 Telnet Filter Example
    109
  - Figure 7-13 Example Filter – Menu 21.1.1.1
    110
  - Filter Types and NAT
    111
  - Applying a Filter and Factory Defaults
    112
    
    Figure 7-15 Protocol and Device Filter Sets
    112
    
    LAN Traffic
    112
    
    Figure 7-16 Filtering LAN Traffic
    113
    
    Figure 7-17 Filtering Remote Node Traffic
    113
    
    Remote Node Filters
    113
  - Firewall
    112
Chapter 8 SNMP Configuration

114
- About SNMP
  114
- Configuring SNMP
  114
- Menu 22 - SNMP Configuration
  114
- Figure
  114
Chapter 9 System Information & Diagnosis

116
- Menu 24 - System Maintenance
  116
- Figure
  116
- System Status
  117
- Menu 24.1 - System Maintenance - Status
  117
- Figure
  117
- Table 9-1 System Maintenance - Status Menu Fields
  118
- System Information and Console Port Speed
  119
  - System Information
    119
- Menu 24.2 - System Information and Console Port Speed
  119
- Figure
  119
- Menu 24.2.1 System Maintenance - Information
  119
  - Console Port Speed
    120
- Log and Trace
  120
- Menu 24.2.2 - System Maintenance - Change Console Port Speed
  120
  - Figure
    120
  - Figure 9-6 Examples of Error and Information Messages
    121
  - Figure 9-7 Examples of Error and Information Messages
    121
  - UNIX Syslog
    121
  - Viewing Error Log
    121
  - Figure 9-8 Menu 24.3.2 - System Maintenance - UNIX Syslog
    122
  - Table 9-3 System Maintenance Menu Syslog Parameters
    122
  - Filter Log
    123
  - Packet Triggered
    123
  - Firewall Log
    124
  - Ppp Log
    124
  - Call-Triggering Packet
    125
  - Call-Triggering Packet Example
    125
    
    Figure
    125
    
    Wan Dhcp
    126
  - Diagnostic
    125
  - Figure
    127
  - Wan & Lan Dhcp
    127
Chapter 10 Transferring Files

128
Chapter 11 System Maintenance & Information

138
- Command Interpreter Mode
  138
- Command Mode in Menu 24
  138
- Figure
  138
- Valid Commands
  138
- Figure 11-4 Budget Management
  139
- Call Control Support
  139
  - Budget Management
    139
- Call Control
  139
  - Figure
    139
  - Call History
    140
  - Figure
    140
  - Time and Date Setting
    141
    
    How Often Does the Prestige Update the Time
    141
    
    Figure 11-6 System Maintenance - Time and Date Setting
    142
    
    Table 11-3 Time and Date Setting Fields
    142
  - Figure 11-7 Menu 24.11 - Remote Management Control
    143
  - Remote Management Setup
    143
  - Boot Commands
    144
  - Table 11-4 Menu 24.11 - Remote Management Control
    144
  - Boot Module Commands
    145
  - Figure
    145
Chapter 12 Telnet Configuration and Capabilities

146
- About Telnet Configuration
  146
  - Telnet under NAT
    146
  - Telnet Capabilities
    146
    
    Single Administrator
    146
    
    System Timeout
    147
  - Telnet under the Firewall
    147
- Figure 12-1 Telnet Configuration on a TCP/IP Network
  146
Firewall and Content Filters

148
Chapter 13 What Is a Firewall

149
- Types of Firewalls
  149
  - Packet Filtering Firewalls
    149
  - Application-Level Firewalls
    149
  - Stateful Inspection Firewalls
    150
  - Introduction to Zyxel's Firewall
    150
  - Denial of Service
    151
    
    Basics
    151
    
    Figure 13-1 Prestige Firewall Application
    151
    
    Types of Dos Attacks
    152
    
    Figure 13-3 SYN Flood
    153
  - Stateful Inspection
    154
    
    Figure 13-4 Smurf Attack
    154
    
    Figure 13-5 Stateful Inspection
    155
    
    Stateful Inspection Process
    155
    
    Stateful Inspection & the Prestige
    156
    
    TCP Security
    156
    
    UDP/ICMP Security
    157
    
    Upper Layer Protocols
    157
  - Guidelines for Enhancing Security with Your Firewall
    157
    
    Security in General
    158
Chapter 14 Introducing the Prestige Firewall

161
- SMT Menus
  161
- SMT Main Menu
  161
  - Figure 14-2 Menu 21 - Filter and Firewall Setup
    161
  - Attack Types
    162
  - Figure
    162
  - View Firewall Log
    162
  - Table 14-1 ICMP Commands that Trigger Alerts
    163
  - Figure 14-4 View Firewall Log
    164
  - Syn Flood
    164
  - The Big Picture - Filtering, Firewall and NAT
    165
  - Packet Filtering Vs Firewall
    166
    
    Figure 14-5 Big Picture - Filtering, Firewall and NAT
    166
    
    Packet Filtering
    166
    
    Firewall
    167
Chapter 15 Introducing the Prestige Web Configurator

169
- Figure 15-1 Login Screen as Seen in Netscape
  169
- Web Configurator Login and Welcome Screens
  169
- Enabling the Firewall
  170
- Figure 15-2 Prestige Web Configurator Welcome Screen
  170
- E-Mail
  171
  - What Are Alerts
    171
  - Figure 15-3 Enabling the Firewall
    171
  - What Are Logs
    172
  - Figure 15-4 E-Mail Screen
    172
  - SMTP Error Messages
    174
  - Example E-Mail Log
    174
- Attack Alert
  175
  - Threshold Values
    176
  - Half-Open Sessions
    176
  - Figure 15-6 Attack Alert
    177
Chapter 16 Creating Custom Rules

181
- Rules Overview
  181
- Rule Logic Overview
  181
  - Rule Checklist
    181
  - Security Ramifications
    182
  - Key Fields for Configuring Rules
    182
- Connection Direction
  183
  - LAN to WAN Rules
    183
  - WAN to LAN Rules
    183
  - Figure 16-1 LAN to WAN Traffic
    183
- Services Supported
  184
- Figure 16-2 WAN to LAN Traffic
  184
- Rule Summary
  186
- Timeout
  192
  - Factors Influencing Choices for Timeout Values
    192
  - Figure 16-6 Timeout Screen
    193
Chapter 17 Custom Ports

195
- Introduction
  195
- Figure 17-1 Custom Ports
  195
- Creating/Editing a Custom Port
  196
- Figure 17-2 Creating/Editing a Custom Port
  197
Chapter 18 Logs

199
- Log Screen
  199
- Figure 18-1 Log Screen
  199
Chapter 19 Example Firewall Rules

203
Chapter 20 Content Filtering

217
- Restrict Web Features
  217
  - Activex
    217
  - Java
    217
  - Cookies
    218
  - Web Proxy
    218
  - Blocking Urls
    218
  - Figure 20-1 Content Filtering Screen
    219
Troubleshooting, Appendices, Glossary and Index

220
Chapter 21 Troubleshooting

222
- Problems Starting up the Prestige
  222
- Problems with the LAN Interface
  223
- Problems with the WAN Interface
  223
- Problems with Internet Access
  224
- Problems with the Firewall
  224
Appendix Apppoe

226
Appendix Bpptp

228
Appendix C Hardware Specifications

230
Appendix D Important Safety Instructions

231
Appendix E Firewall CLI Commands

232
- Cli Commands
  233
Appendix F Power Adapter Specs

237
- Glossary of Terms
  239
- Index
  250

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ZyXEL Communications Broadband Security Gateway P-312 Manuals

ZyXEL Communications Broadband Security Gateway P-312 User Manual (254 pages)

Table of Contents

Getting Started

Chapter 1 Getting to Know Your Prestige

Chapter 2 Hardware Installation & Initial Setup

Chapter 3 Internet Access

Advanced Applications

Chapter 4 Remote Node Setup

Chapter 5 IP Static Route Setup

Chapter 6 Network Address Translation (NAT)

Advanced Management

Chapter 7 Filter Configuration

Chapter 8 SNMP Configuration

Chapter 9 System Information & Diagnosis

Chapter 10 Transferring Files

Chapter 11 System Maintenance & Information

Chapter 12 Telnet Configuration and Capabilities

Firewall and Content Filters

Chapter 13 What Is a Firewall

Chapter 14 Introducing the Prestige Firewall

Chapter 15 Introducing the Prestige Web Configurator

Chapter 16 Creating Custom Rules

Chapter 17 Custom Ports

Chapter 18 Logs

Chapter 19 Example Firewall Rules

Chapter 20 Content Filtering

Troubleshooting, Appendices, Glossary and Index

Chapter 21 Troubleshooting

Appendix Apppoe

Appendix Bpptp

Appendix C Hardware Specifications

Appendix D Important Safety Instructions

Appendix E Firewall CLI Commands

Appendix F Power Adapter Specs

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