Netgear DG824M DG824M Reference Manual - Page 9

Contents

ix

Testing the Path from Your PC to a Remote Device

................................................

8-8

Restoring the Default Configuration and Password

........................................................

8-8

Using the Default Reset button

................................................................................

8-9

Problems with Date and Time

.........................................................................................

8-9

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

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

Install or Verify Windows Networking Components

.................................................

C-2

Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me

C-4

Section	Page
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway	1
Contents	5
Chapter 1 About This Guide	11
Audience, Conventions, Scope	11
How to Use this Manual	12
How to Print this Manual	13
Chapter 2 Introduction	14
About the Gateway	14
Key Features	14
802.11b Standards-based Wireless Networking	15
A Powerful, True Firewall	15
Content Filtering	16
Auto Sensing and Auto Uplink™ LAN Ethernet Connections	16
Protocol Support	16
Easy Installation and Management	17
What’s in the Box?	18
The Gateway’s Front Panel	19
The Gateway’s Rear Panel	20
Chapter 3 Connecting the Gateway to the Internet	22
What You Will Need Before You Begin	22
ADSL Microfilter Requirements	22
ADSL Microfilter	22
ADSL Microfilter with Built-In Splitter	23
Ethernet Cabling Requirements	23
Computer Hardware Requirements	23
LAN Configuration Requirements	23
Internet Configuration Requirements	24
Where Do I Get the Internet Configuration Parameters?	24
Record Your Internet Connection Information	25
Connecting the DG824M to Your LAN	26
How to Connect the Gateway	26
Connecting the DG824M to the Internet	30
Auto-Detecting Your Internet Connection Type	30
Wizard-Detected PPPoE Login Account Setup	32
Wizard-Detected PPPoA Login Account Setup	33
Wizard-Detected Dynamic IP Account Setup	35
Wizard-Detected IP Over ATM Account Setup	36
Wizard-Detected Fixed IP (Static) Account Setup	37
Testing Your Internet Connection	38
Manually Configuring Your Internet Connection	39
Manual Configuration	40
Chapter 4 Wireless Configuration	44
Considerations for a Wireless Network	44
Observe Performance, Placement, and Range Guidelines	44
Implement Appropriate Wireless Security	45
Understanding Wireless Settings	46
How to Set Up and Test Basic Wireless Connectivity	47
Restricting Wireless Access to Your Network	48
Restricting Access to Your Network by Turning Off Wireless Connectivity	49
Restricting Wireless Access Based on the Wireless Network Name (SSID)	49
Restricting Wireless Access Based on the Trusted PCs List	49
Choosing WEP Authentication and Security Encryption Methods	51
Authentication Type Selection	51
Encryption Choices	52
How to Configure WEP	52
Chapter 5 Protecting Your Network	54
Protecting Access to Your DG824M Wireless ADSL Modem Gateway	54
How to Change the Built-In Password	54
Changing the Administrator Login Timeout	55
Configuring Basic Firewall Services	55
Blocking Keywords, Sites, and Services	56
How to Block Keywords and Sites	56
Rules	58
Inbound Rules (Port Forwarding)	59
Inbound Rule Example: A Local Public Web Server	59
Inbound Rule Example: Allowing Videoconferencing	61
Considerations for Inbound Rules	61
Outbound Rules (Service Blocking)	62
Outbound Rule Example: Blocking Instant Messenger	62
Order of Precedence for Rules	64
Services	65
How to Define Services	65
Setting Times and Scheduling Firewall Services	66
How to Set Your Time Zone	66
How to Schedule Firewall Services	68
Chapter 6 Managing Your Network	70
Backing Up, Restoring, or Erasing Your Settings	70
How to Back Up the Configuration to a File	70
How to Restore a Configuration from a File	71
How to Erase the Configuration	71
Upgrading the Gateway’s Firmware	71
How to Upgrade the Gateway Firmware	72
Network Management Information	73
Viewing Gateway Status and Usage Statistics	73
Viewing Attached Devices	77
Viewing, Selecting, and Saving Logged Information	77
Selecting What Information to Log	79
Saving Log Files on a Server	80
Examples of log messages	80
Activation and Administration	80
Dropped Packets	80
Enabling Security Event E-mail Notification	81
Running Diagnostic Utilities and Rebooting the Router	82
Enabling Remote Management	83
Configure Remote Management	84
Chapter 7 Advanced Configuration	86
Configuring Advanced Security	86
Setting Up A Default DMZ Server	86
How to Configure a Default DMZ Server.	87
Respond to Ping on Internet WAN Port	87
Configuring LAN IP Settings	87
DHCP	90
Use Gateway as DHCP server	90
Reserved IP addresses	91
How to Configure LAN TCP/IP Settings	91
Configuring Dynamic DNS	92
How to Configure Dynamic DNS	93
Using Static Routes	94
Static Route Example	94
How to Configure Static Routes	95
Chapter 8 Troubleshooting	98
Basic Functioning	98
Power LED Not On	99
Test LED Never Turns On or Test LED Stays On	99
LAN or WAN Port LEDs Not On	99
Troubleshooting the Web Configuration Interface	100
Troubleshooting the ISP Connection	101
ADSL link	101
WAN LED Blinking Yellow	101
WAN LED Off	101
Obtaining a WAN IP Address	102
Troubleshooting PPPoE or PPPoA	103
Troubleshooting Internet Browsing	103
Troubleshooting a TCP/IP Network Using the Ping Utility	104
Testing the LAN Path to Your Router	104
Testing the Path from Your PC to a Remote Device	105
Restoring the Default Configuration and Password	105
Using the Default Reset button	106
Problems with Date and Time	106
Appendix A Technical Specifications	108
Appendix B Network and Routing Basics	110
Related Publications	110
Basic Router Concepts	110
What is a Router?	111
Routing Information Protocol	111
IP Addresses and the Internet	111
Netmask	113
Subnet Addressing	114
Private IP Addresses	116
Single IP Address Operation Using NAT	117
MAC Addresses and Address Resolution Protocol	118
Related Documents	118
Domain Name Server	119
IP Configuration by DHCP	119
Internet Security and Firewalls	119
What is a Firewall?	120
Stateful Packet Inspection	120
Denial of Service Attack	120
Ethernet Cabling	120
Category 5 Cable Quality	121
Inside Twisted Pair Cables	122
Uplink Switches, Crossover Cables, and MDI/MDIX Switching	123
Appendix C Preparing Your Network	126
Preparing Your Computers for TCP/IP Networking	126
Configuring Windows 95, 98, and Me for TCP/IP Networking	127
Install or Verify Windows Networking Components	127
Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me	129
Selecting Windows’ Internet Access Method	131
Verifying TCP/IP Properties	131
Configuring Windows NT4, 2000 or XP for IP Networking	132
Install or Verify Windows Networking Components	132
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4	133
DHCP Configuration of TCP/IP in Windows XP	133
DHCP Configuration of TCP/IP in Windows 2000	135
DHCP Configuration of TCP/IP in Windows NT4	138
Verifying TCP/IP Properties for Windows XP, 2000, and NT4	140
Configuring the Macintosh for TCP/IP Networking	141
MacOS 8.6 or 9.x	141
MacOS X	141
Verifying TCP/IP Properties for Macintosh Computers	142
Verifying the Readiness of Your Internet Account	143
Are Login Protocols Used?	143
What Is Your Configuration Information?	143
Obtaining ISP Configuration Information for Windows Computers	144
Obtaining ISP Configuration Information for Macintosh Computers	145
Restarting the Network	146
Appendix D Wireless Networking Basics	148
Wireless Networking Overview	148
Infrastructure Mode	148
Ad Hoc Mode (Peer-to-Peer Workgroup)	149
Network Name: Extended Service Set Identification (ESSID)	149
Authentication and WEP	150
802.11b Authentication	150
Open System Authentication	151
Shared Key Authentication	151
Overview of WEP Parameters	152
Key Size	153
WEP Configuration Options	154
Wireless Channels	154
Glossary	156

Netgear DG824M DG824M Reference Manual - Page 9

Appendix A, Technical Specifications, Network and Routing Basics, Preparing Your Network - problem

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