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Table 9-1., Netmask Notation Translation Table for One Octet, Netmask Formats

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Preliminary Manual for the 108 Mbps Wireless Media Router WGT634U The following table lists the additional subnet mask bits in dotted-decimal notation. To use the table, write down the original class netmask and replace the 0 value octets with the dotted-decimal value of the additional subnet bits. For example, to partition your Class C network with subnet mask 255.255.255.0 into 16 subnets (4 bits), the new subnet mask becomes 255.255.255.240. Table 9-1. Netmask Notation Translation Table for One Octet Number of Bits Dotted-Decimal Value 1 128 2 192 3 224 4 240 5 248 6 252 7 254 8 255 The following table displays several common netmask values in both the dotted-decimal and the masklength formats. Table 9-2. Netmask Formats Dotted-Decimal 255.0.0.0 255.255.0.0 255.255.255.0 255.255.255.128 255.255.255.192 255.255.255.224 255.255.255.240 255.255.255.248 255.255.255.252 255.255.255.254 255.255.255.255 Masklength /8 /16 /24 /25 /26 /27 /28 /29 /30 /31 /32 Configure all hosts on a LAN segment to use the same netmask for the following reasons: B-6 Network, Routing, Firewall, and Basics Preliminary - Go to http://kbserver.netgear.com/products/wgt634U.asp for final manual

Section	Page
Preliminary Manual for the 108 Mbps Wireless Media Router WGT634U	1
Europe - EU Declaration of Conformity	3
Requirements For Operation in the European Community	3
Contents	5
Chapter 1 About This Manual	11
Audience, Scope, Conventions, and Formats	11
How to Use This Manual	13
How to Print this Manual	14
Chapter 2 Introduction	15
Introduction to the WGT634U Wireless Media Router	15
Key Features of the WGT634U Wireless Media Router	16
USB Storage Device for File Sharing	17
DMZ Support	17
802.11g Wireless Networking	17
A Powerful, True Firewall with Content Filtering	18
Security	18
Autosensing Ethernet Connections with Auto Uplink	18
Extensive Protocol Support	19
Easy Installation and Management	19
Maintenance and Support	20
Package Contents	21
The Router’s Front Panel	22
The Router’s Rear Panel	23
Chapter 3 Connecting the Router to the Internet	25
What You Will Need Before You Begin	25
Cabling and Computer Hardware Requirements	25
Computer Network Configuration Requirements	25
Internet Configuration Requirements	26
Where Do I Get the Internet Configuration Parameters?	26
Record Your Internet Connection Information	27
First, Connect the WGT634U to the Internet	28
Now, Set Up Basic Wireless Connectivity	33
Basic Setup Troubleshooting Tips	33
Understanding the Setup Wizard Options	34
PPPoE Smart Wizard-Detected Option	35
Telstra Bigpond Cable Smart Wizard-Detected Option	36
Dynamic IP Smart Wizard-Detected Option	37
Fixed IP Account Smart Wizard-Detected Option	38
How to Manually Configure Your Internet Connection	39
Chapter 4 Wireless Configuration	43
Observe Performance, Placement, and Range Guidelines	43
Implement Appropriate Wireless Security	44
Understanding Wireless Settings	45
Understanding WEP Authentication and Encryption	46
Authentication Scheme Selection	46
Encryption Strength Choices	47
Default Factory Settings	48
Before You Change the SSID and WEP Settings	49
How to Set Up and Test Basic Wireless Connectivity	50
Understanding Advanced Wireless Settings	51
How to Restrict Wireless Access by MAC Address	52
How to Configure WEP	54
Chapter 5 Connecting a USB Drive to the Router	55
Connecting a USB Drive to the WGT634U Wireless Media Router	55
USB Drive Hardware Requirements	56
Understanding USB Configuration Settings	56
Granting a User Access to the USB Drive	57
Unmounting a USB Drive	57
Connecting to the USB Drive From a Local Computer	58
Connecting to the USB Drive From a Remote Computer	58
Locating the Internet Port IP Address	58
Connecting to the Router’s USB Drive Remotely	58
Chapter 6 Content Filtering	61
Blocking Access to Internet Sites	61
Blocking Access to Internet Services	62
Scheduling When Blocking Will Be Enforced	64
Viewing Logs of Web Access or Attempted Web Access	65
Configuring E-Mail Alert and Web Access Log Notifications	67
Chapter 7 Maintenance	69
Viewing Wireless Router Status Information	69
Viewing a List of Attached Devices	73
Upgrading the Router Software	73
Configuration File Management	74
Restoring and Backing Up the Configuration	75
Erasing the Configuration	76
Changing the Administrator Password	76
Chapter 8 Advanced Configuration	77
Configuring Port Forwarding to Local Servers	77
Adding a Port Forwarding Custom Service	78
Editing or Deleting a Port Forwarding Entry	78
Local Web and FTP Server Example	79
Multiple Computers for Half Life, KALI or Quake III Example	79
Configuring WAN Setup Options	80
Using a Dynamic DNS Service	82
Using LAN IP Setup Options	83
Using the Router as a DHCP server	85
Using Address Reservation	85
How to Configure Static Routes	86
Enabling Remote Management Access	88
Using Universal Plug and Play (UPnP)	89
Chapter 9 Troubleshooting	91
Basic Functioning	91
Power LED Not On	92
LEDs Never Turn Off	92
Local or Internet Port LEDs Not On	92
Troubleshooting the Web Configuration Interface	93
Troubleshooting the ISP Connection	94
Troubleshooting a TCP/IP Network Using a Ping Utility	95
Testing the LAN Path to Your Router	95
Testing the Path from Your PC to a Remote Device	96
Restoring the Default Configuration and Password	97
Problems with Date and Time	97
Appendix A Technical Specifications	99
Appendix B Network, Routing, Firewall, and Basics	101
Related Publications	101
Basic Router Concepts	101
What is a Router?	101
Routing Information Protocol	102
IP Addresses and the Internet	102
Netmask	104
Subnet Addressing	104
Private IP Addresses	107
Single IP Address Operation Using NAT	107
MAC Addresses and Address Resolution Protocol	108
Related Documents	109
Domain Name Server	109
IP Configuration by DHCP	110
Internet Security and Firewalls	110
What is a Firewall?	110
Stateful Packet Inspection	111
Denial of Service Attack	111
Ethernet Cabling	111
Category 5 Cable Quality	112
Inside Twisted Pair Cables	112
Uplink Switches, Crossover Cables, and MDI/MDIX Switching	114
Appendix C Preparing Your Network	115
Preparing Your Computers for TCP/IP Networking	115
Configuring Windows 95, 98, and Me for TCP/IP Networking	116
Install or Verify Windows Networking Components	116
Enabling DHCP to Automatically Configure TCP/IP Settings	118
Selecting Windows’ Internet Access Method	120
Verifying TCP/IP Properties	120
Configuring Windows NT4, 2000 or XP for IP Networking	121
Install or Verify Windows Networking Components	121
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4	122
DHCP Configuration of TCP/IP in Windows XP	122
DHCP Configuration of TCP/IP in Windows 2000	124
DHCP Configuration of TCP/IP in Windows NT4	127
Verifying TCP/IP Properties for Windows XP, 2000, and NT4	129
Configuring the Macintosh for TCP/IP Networking	130
MacOS 8.6 or 9.x	130
MacOS X	130
Verifying TCP/IP Properties for Macintosh Computers	131
Verifying the Readiness of Your Internet Account	132
Are Login Protocols Used?	132
What Is Your Configuration Information?	132
Obtaining ISP Configuration Information for Windows Computers	133
Obtaining ISP Configuration Information for Macintosh Computers	134
Restarting the Network	135
Appendix D Wireless Networking Basics	137
Wireless Networking Overview	137
Infrastructure Mode	137
Ad Hoc Mode (Peer-to-Peer Workgroup)	138
Network Name: Extended Service Set Identification (ESSID)	138
Authentication and WEP	138
802.11 Authentication	139
Open System Authentication	139
Shared Key Authentication	140
Overview of WEP Parameters	141
Key Size	142
WEP Configuration Options	142
Wireless Channels	143
Glossary	145
List of Glossary Terms	145