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Page 6 / 132 Scroll up to view Page 1 - 5
vi
Contents
Record Your Internet Connection Information
..........................................................
3-4
Connecting the DG632 to Your Network
.........................................................................
3-5
How to Connect the Modem
.....................................................................................
3-5
Auto-Detecting Your Internet Connection Type
........................................................
3-9
Wizard-Detected PPPoE Login Account Setup
......................................................
3-10
Wizard-Detected PPPoA Login Account Setup
......................................................
3-11
Wizard-Detected Dynamic IP Account Setup
.........................................................
3-11
Testing Your Internet Connection
..................................................................................
3-12
Connecting Your Computer to the DG632 USB Port Option
........................................
3-12
Chapter 4
Maintaining Your
DG632 ADSL Modem Router
Changing the Mode of Operation
...................................................................................
4-1
Changing the Password of Your DG632 ADSL Modem Router
......................................
4-3
How to Change the Built-In Password
.....................................................................
4-4
Changing the Administrator Login Timeout
..............................................................
4-4
Backing Up, Restoring, or Erasing Your Settings
...........................................................
4-5
How to Back Up the Configuration to a File
.............................................................
4-5
How to Restore the Configuration from a File
..........................................................
4-6
How to Erase the Configuration
...............................................................................
4-6
Upgrading the Modem’s Firmware
.................................................................................
4-6
How to Upgrade the Modem Firmware
....................................................................
4-7
Chapter 5
Using Modem Mode
Modem Mode Basic Settings
..........................................................................................
5-1
Manually Configuring Basic Settings
........................................................................
5-1
Internet Connection Requires Login and Uses PPPoE
............................................
5-2
Internet Connection Requires Login and Uses PPPoA
............................................
5-2
Internet Connection Does Not Require A Login
.......................................................
5-3
ADSL Settings
..........................................................................................................
5-4
Modem Mode Network Management Information
..........................................................
5-5
Viewing Modem Status and Usage Statistics
...........................................................
5-5
Chapter 6
Using Router Mode
Router Mode Basic Settings
...........................................................................................
6-1
Manually Configuring Basic Settings
........................................................................
6-2
Page 7 / 132
Contents
vii
Internet Connection Requires Login and Uses PPPoE
............................................
6-3
Internet Connection Requires Login and Uses PPPoA
............................................
6-3
Internet Connection Does Not Require A Login
.......................................................
6-4
ADSL Settings
..........................................................................................................
6-5
Router Mode Network Management Information
............................................................
6-6
Viewing Router Status and Usage Statistics
............................................................
6-6
Viewing, Selecting, and Saving Router Mode Logged Information
........................
6-11
Selecting What Information to Log
..................................................................
6-12
Saving Log Files on a Server
..........................................................................
6-12
Router Mode Diagnostic Utilities and Rebooting
..........................................................
6-13
Firewall Services
..........................................................................................................
6-14
How to Define Services
..........................................................................................
6-14
Firewall Rules
...............................................................................................................
6-15
Inbound Rules (Port Forwarding)
...........................................................................
6-16
Inbound Rule Example: A Local Public Web Server
........................................
6-17
Considerations for Inbound Rules
...................................................................
6-17
Outbound Rules (Service Blocking)
.......................................................................
6-18
Outbound Rule Example: Doom
......................................................................
6-18
Configuring Advanced Settings
....................................................................................
6-19
Setting Up A Default DMZ Server
..........................................................................
6-19
How to Configure a Default DMZ Server
.........................................................
6-20
Connect Automatically, as Required
......................................................................
6-20
Disable Port Scan and DOS Protection
.................................................................
6-21
Respond to Ping on Internet WAN Port
.................................................................
6-21
MTU Size
...............................................................................................................
6-21
Configuring LAN IP Settings
.........................................................................................
6-21
DHCP
.....................................................................................................................
6-23
Use Router as DHCP server
...........................................................................
6-23
Reserved IP addresses
...................................................................................
6-24
How to Configure LAN TCP/IP Settings
.................................................................
6-25
Using Static Routes
......................................................................................................
6-25
Static Route Example
.............................................................................................
6-25
How to Configure Static Routes
.............................................................................
6-26
Page 8 / 132
viii
Contents
Chapter 7
Troubleshooting
Basic Functioning
...........................................................................................................
7-1
Power LED Not On
...................................................................................................
7-2
LAN or WAN Port LEDs Not On
...............................................................................
7-2
Troubleshooting the Web Configuration Interface
..........................................................
7-2
Troubleshooting the ISP Connection
..............................................................................
7-3
ADSL link
.................................................................................................................
7-3
WAN LED Blinking Yellow
..................................................................................
7-4
WAN LED Off
.....................................................................................................
7-4
Obtaining a WAN IP Address
...................................................................................
7-4
Troubleshooting PPPoE or PPPoA
..........................................................................
7-5
Troubleshooting Internet Browsing
..........................................................................
7-6
Troubleshooting a TCP/IP Network Using the Ping Utility
..............................................
7-6
Testing the LAN Path to Your Router
.......................................................................
7-6
Testing the Path from Your Computer to a Remote Device
.....................................
7-7
Restoring the Default Configuration and Password
........................................................
7-8
Using the Reset button
.............................................................................................
7-8
Appendix A
Technical Specifications
Appendix B
Network and Routing Basics
Related Publications
......................................................................................................
B-1
Basic Router Concepts
..................................................................................................
B-1
What is a Router?
...................................................................................................
B-2
Routing Information Protocol
...................................................................................
B-2
IP Addresses and the Internet
.................................................................................
B-2
Netmask
..................................................................................................................
B-4
Subnet Addressing
..................................................................................................
B-5
Private IP Addresses
...............................................................................................
B-7
Single IP Address Operation Using NAT
.................................................................
B-8
MAC Addresses and Address Resolution Protocol
.................................................
B-9
Related Documents
.................................................................................................
B-9
Domain Name Server
............................................................................................
B-10
IP Configuration by DHCP
....................................................................................
B-10
Page 9 / 132
Contents
ix
Internet Security and Firewalls
....................................................................................
B-10
What is a Firewall?
.................................................................................................
B-11
Stateful Packet Inspection
......................................................................................
B-11
Denial of Service Attack
.........................................................................................
B-11
Ethernet Cabling
...........................................................................................................
B-11
Category 5 Cable Quality
......................................................................................
B-12
Inside Twisted Pair Cables
....................................................................................
B-13
Uplink Switches, Crossover Cables, and MDI/MDIX Switching
............................
B-14
Appendix C
Preparing Your Network
Preparing Your Computers for TCP/IP Networking
.......................................................
C-1
Configuring Windows 95, 98, and Me for TCP/IP Networking
.......................................
C-2
Installing or Verifying Windows Networking Components
.......................................
C-2
Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me
C-4
Selecting the Windows’ Internet Access Method
....................................................
C-6
Verifying TCP/IP Properties
....................................................................................
C-6
Configuring Windows NT4, 2000 or XP for IP Networking
............................................
C-7
Installing or Verifying Windows Networking Components
.......................................
C-7
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4
......................................
C-8
DHCP Configuration of TCP/IP in Windows XP
.....................................................
C-8
DHCP Configuration of TCP/IP in Windows 2000
................................................
C-10
DHCP Configuration of TCP/IP in Windows NT4
..................................................
C-13
Verifying TCP/IP Properties for Windows XP, 2000, and NT4
..............................
C-15
Configuring the Macintosh for TCP/IP Networking
......................................................
C-16
MacOS 8.6 or 9.x
..................................................................................................
C-16
MacOS X
...............................................................................................................
C-16
Verifying TCP/IP Properties for Macintosh Computers
.........................................
C-17
Verifying the Readiness of Your Internet Account
.......................................................
C-18
Are Login Protocols Used?
...................................................................................
C-18
What Is Your Configuration Information?
..............................................................
C-18
Obtaining ISP Configuration Information for Windows Computers
.......................
C-19
Obtaining ISP Configuration Information for Macintosh Computers
.....................
C-20
Restarting the Network
................................................................................................
C-21
Glossary
Page 10 / 132
x
Contents

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