3Com SuperStack 3 3CR16110-95 Manuals

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3Com SuperStack 3 3CR16110-95 User Manual

3Com SuperStack 3 3CR16110-95 User Manual (214 pages)

Firewall and Firewall Web Site Filter

Brand: 3Com | Category: Firewall | Size: 7 MB

Table of Contents

User Guide
1
Table of Contents
3
About this Guide
11
How to Use this Guide
12
Conventions
12
Terminology
13
Feedback about this User Guide
15
Registration
16
I Getting Started

17
1 Introduction

19
2 Installing the Hardware

27
- Before You Start
  27
- Positioning the Firewall
  28
- Redundant Power System (RPS)
  31
- Attaching the Firewall to the Network
  32
3 Quick Setup for the Firewall

35
- Introduction
  35
- Setting up a Management Station
  36
- Configuring Basic Settings
  36
  - Setting the Password
    37
  - Setting the Time Zone
    38
- Configuring WAN Settings
  39
- Configuring LAN Settings
  44
- Confirming Firewall Settings
  46
- Configuring the Firewall
  
  49
4 Basic Settings of the Firewall

49
- Examining the Unit Status
  52
- Setting the Administrator Password
  53
  - Setting the Inactivity Timeout
    54
- Setting the Time
  54
- Changing the Basic Network Settings
  56
- Specifying DMZ Addresses
  59
- Setting up the DHCP Server
  60
  - Global Options
    61
  - Dynamic Ranges
    62
  - Static Entries
    63
  - Viewing the DHCP Server Status
    63
  - Using the Network Diagnostic Tools
    64
    
    Choosing a Diagnostic Tool
    64
5 Setting up Web Filtering

67
- Changing the Filter Settings
  67
6 Using the Firewall Diagnostic Tools

79
- Logs and Alerts
  79
- Viewing the Log
  80
- Changing Log and Alert Settings
  82
  - Sending the Log
    83
  - Changing the Log Automation Settings
    84
  - Selecting the Categories to Log
    85
  - Alert Categories
    86
  - Generating Reports
    87
    
    Collecting Report Data
    87
    
    Viewing Report Data
    88
  - Restarting the Firewall
    89
- Managing the Firewall Configuration File
  90
- Upgrading the Firewall Firmware
  92
7 Setting a Policy

97
- Changing Policy Services
  97
  - Amending Network Policy Rules
    98
  - Changing Netbios Broadcast Settings
    99
  - Enabling Stealth Mode
    100
  - Allowing Fragmented Packets
    100
- Adding and Deleting Services
  101
- Editing Policy Rules
  103
  - Viewing Network Policy Rules
    103
  - Adding a New Rule
    106
  - Restoring Rules to Defaults
    106
- Updating User Privileges
  106
- Establishing an Authenticated Session
  108
- Setting Management Method
  109
  - Selecting Remote Management
    110
- Using the Firewall with the NBX 100 Business Telephone System
  110
8 Advanced Settings

111
9 Configuring Virtual Private Network Services

123
- Editing VPN Summary Information
  123
  - Changing the Global Ipsec Settings
    124
    
    Configuring a VPN Security Association
    125
    
    Viewing the Current Ipsec Security Associations
    125
    
    Adding/Modifying Ipsec Security Associations
    126
    
    Security Policy
    127
    
    Setting the Destination Network for the VPN Tunnel
    131
    
    Changing the Global RADIUS Settings
    132
    
    Configuring the Firewall to Use a RADIUS Server
    132
    
    Changing RADIUS Server Details
    133
    
    Configuring the IRE VPN Client
    134
    
    Using the Firewall with Check Point Firewall-1
    134
    
    Configuring the Firewall
    137
    
    Configuring the IRE VPN Client for Use with the Firewall
    137
    
    Setting up the Groupvpn Security Association
    138
    
    Configuring the IRE VPN Client
    139
    
    Installing the IRE VPN Client Software
    139
10 Configuring High Availability

141
- Getting Started
  141
  - Network Configuration for High Availability Pair
    142
  - Configuring High Availability
    142
    
    Configuring High Availability on the Primary Firewall
    143
    
    Configuring High Availability on the Backup Firewall
    144
    
    Making Configuration Changes
    145
    
    Checking High Availability Status
    146
    
    High Availability Status Window
    146
    
    E-Mail Alerts Indicating Status Change
    147
    
    View Log
    147
    
    Forcing Transitions
    148
    
    Dministration and Troubleshooting
    151
11 Administration and Advanced Operations

153
- Introducing the Web Site Filter
  153
- Activating the Web Site Filter
  156
- Using Network Access Policy Rules
  157
  - Understanding the Rule Hierarchy
    158
  - Examples of Network Access Policies
    159
- Resetting the Firewall
  162
  - Resetting the Firewall
    163
  - Reloading the Firmware
    163
- Direct Cable Connection
  164
  - Direct Connection Instructions
    165
12 Troubleshooting Guide

167
- Introduction
  167
- Potential Problems and Solutions
  167
  - Power LED Not Lit
    167
  - Power LED Flashes Continuously
    168
  - Power and Alert LED Lit Continuously
    168
  - Link LED Is off
    168
  - Ethernet Connection Is Not Functioning
    168
  - Cannot Access the Web Interface
    168
  - LAN Users Cannot Access the Internet
    169
  - Firewall Does Not Save Changes
    169
  - Duplicate IP Address Errors Are Occurring
    169
  - Machines on the WAN Are Not Reachable
    170
- Troubleshooting the Firewall VPN Client
  170
- Frequently Asked Questions about Pppoe
  172
Firewall and

173
13 Types of

175
- Ttack and
  175
- Denial of Service Attacks
  175
  - Ping of Death
    175
  - Smurf Attack
    175
  - SYN Flood Attack
    176
  - Land Attack
    176
    
    External Access
    176
    
    Intrusion Attacks
    176
    
    IP Spoofing
    177
    
    Port Scanning
    177
    
    Trojan Horse Attacks
    177
14 Networking Concepts

179
- Introduction to TCP/IP
  179
  - IP and TCP
    179
  - IP Addressing
    179
  - Network Address Translation (NAT)
    182
    
    Limitations of Using NAT
    182
    
    Dynamic Host Configuration Protocol (DHCP)
    183
    
    Port Numbers
    184
    
    Private Port Numbers
    184
    
    Registered Port Numbers
    184
    
    Virtual Private Network Services
    184
    
    Well Known Port Numbers
    184
    
    Introduction to Virtual Private Networks
    185
    
    VPN Applications
    185
    
    Basic VPN Terms and Concepts
    186
- Appendices
  
  191
- A Safety Information
  
  193
- Echnical Pecifications and Tandards
  
  197
- 100 C Cablespecifications
  
  199
  - Cable Specifications
    199
  - Pinout Diagrams
    199
Technical Support

201
- Online Technical Services
  201
  - World Wide Web Site
    201
  - 3Com Knowledgebase Web Services
    201
  - 3Com FTP Site
    202
- Support from Your Network Supplier
  202
- Support from 3Com
  202
- Returning Products for Repair
  204

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