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Extensive Protocol Support, Easy Installation and Management - help

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Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624 Extensive Protocol Support The WGU624 wireless router supports the Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing Information Protocol (RIP). For further information about TCP/IP, refer to Appendix B, "Network, Routing, Firewall, and Basics". • IP Address Sharing by NAT The WGU624 wireless router allows several networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your Internet service provider (ISP). This technique, known as NAT, allows the use of an inexpensive single-user ISP account. • Automatic Configuration of Attached PCs by DHCP The WGU624 wireless router dynamically assigns network configuration information, including IP, gateway, and domain name server (DNS) addresses, to attached PCs on the LAN using the Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies configuration of PCs on your local network. • DNS Proxy When DHCP is enabled and no DNS addresses are specified, the router provides its own address as a DNS server to the attached PCs. The router obtains actual DNS addresses from the ISP during connection setup and forwards DNS requests from the LAN. • PPP over Ethernet (PPPoE) PPPoE is a protocol for connecting remote hosts to the Internet over a DSL connection by simulating a dial-up connection. This feature eliminates the need to run a login program such as Entersys or WinPOET on your PC. Easy Installation and Management You can install, configure, and operate the Double 108 Mbps Wireless Firewall Router WGU624 within minutes after connecting it to the network. The following features simplify installation and management tasks: • Browser-based management Browser-based configuration allows you to easily configure your router from almost any type of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup Wizard is provided and online help documentation is built into the browser-based Web Management Interface. • Smart Wizard The WGU624 wireless router Smart Wizard automatically senses the type of Internet connection, asking you only for the information required for your type of ISP account. Introduction 2-5 M-10153-01

Section	Page
Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624	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	12
How to Print this Manual	13
Chapter 2 Introduction	15
Key Features of the Router	15
802.11 a/g Wireless Networking	16
Comparing the 802.11a, 802.11b, and 802.11g Modes	16
A Powerful, True Firewall with Content Filtering	17
Security	18
Autosensing Ethernet Connections with Auto Uplink	18
Extensive Protocol Support	19
Easy Installation and Management	19
Maintenance and Support	20
Package Contents	20
The Router’s Front Panel	21
The Router’s Rear Panel	22
Chapter 3 Connecting the Router to the Internet	23
What You Will Need Before You Begin	23
Cabling and Computer Hardware Requirements	23
Computer Network Configuration Requirements	23
Internet Configuration Requirements	24
Where Do I Get the Internet Configuration Parameters?	24
Record Your Internet Connection Information	25
Connecting the WGU624	26
Connecting the Wireless Router	26
How to Manually Configure Your Internet Connection	31
Manual PPPoE Configuration	33
Manual PPTP Configuration	35
Manual Telstra Bigpond Configuration	37
Chapter 4 Wireless Configuration	39
Observing Performance, Placement, and Range Guidelines	39
Implementing Appropriate Wireless Security	40
Wireless Mode Options	41
Default Basic Wireless Settings	42
Basic 802.11a Wireless Settings	42
Basic 802.11g Wireless Settings	44
Wireless Security Settings	47
WEP Authentication and Encryption	47
Security Mode Selection	48
Cipher Type Choices	48
WPA Encryption	49
Recording Your SSID and Security Settings	51
Setting Up and Testing Basic Wireless Connectivity	52
Restricting Wireless Access by MAC Address	53
Configuring WEP	55
Configuring WPA-PSK Encryption Security	56
Configuring Advanced Wireless Settings	57
Default Advanced Wireless Settings	57
Configuring Advanced 802.11a Wireless Settings	58
Configuring Advanced 802.11b/g Wireless Settings	59
Chapter 5 Content Filtering	61
Blocking Access to Internet Sites	61
Blocking Access to Internet Services	63
Scheduling When Blocking Will Be Enforced	65
Viewing Logs of Web Access or Attempted Web Access	66
Configuring E-Mail Alert and Web Access Log Notifications	68
Chapter 6 Maintenance	71
Viewing Wireless Router Status Information	71
Viewing a List of Attached Devices	75
Upgrading the Router Software	75
Configuration File Management	77
Restoring and Backing Up the Configuration	77
Erasing the Configuration	78
Changing the Administrator Password	78
Chapter 7 Advanced Configuration	79
Comparison of Port Triggering and Port Forwarding	79
Configuring Port Forwarding	80
Adding a Port Forwarding Custom Service	81
Local Web and FTP Server Example	82
Configuring Port Triggering	83
Configuring WAN Setup Options	84
Configuring LAN IP Setup Options	86
Using the Router as a DHCP Server	88
Using Address Reservation	89
Using a Dynamic DNS Service	90
Configuring Static Routes	91
Enabling Remote Management Access	94
Using Universal Plug and Play (UPnP)	95
Chapter 8 Troubleshooting	97
Basic Functioning	97
Power LED Not On	98
LEDs Never Turn Off	98
Local or Internet Port LEDs Not On	98
Troubleshooting the Web Configuration Interface	99
Troubleshooting the ISP Connection	100
Troubleshooting a TCP/IP Network Using a Ping Utility	101
Testing the LAN Path to the WGU624	101
Testing the Path from Your PC to a Remote Device	102
Restoring the Default Configuration and Password	103
Problems with Date and Time	103
Why Does the WGU624 Not Reach Full 108 Mbps Speeds?	104
Appendix A Technical Specifications	105
Appendix B Network, Routing, Firewall, and Basics	107
Related Publications	107
Basic Router Concepts	107
What is a Router?	107
Routing Information Protocol	108
IP Addresses and the Internet	108
Netmask	110
Subnet Addressing	111
Private IP Addresses	113
Single IP Address Operation Using NAT	114
MAC Addresses and Address Resolution Protocol	115
Related Documents	115
Domain Name Server	116
IP Configuration by DHCP	116
Internet Security and Firewalls	116
What is a Firewall?	117
Stateful Packet Inspection	117
Denial of Service Attack	117
Ethernet Cabling	117
Category 5 Cable Quality	118
Inside Twisted Pair Cables	119
Uplink Switches, Crossover Cables, and MDI/MDIX Switching	120
Appendix C Preparing Your Network	123
Preparing Your Computers for TCP/IP Networking	123
Configuring Windows 95, 98, and Me for TCP/IP Networking	124
Install or Verify Windows Networking Components	124
Enabling DHCP to Automatically Configure TCP/IP Settings	126
Selecting Windows’ Internet Access Method	128
Verifying TCP/IP Properties	128
Configuring Windows NT4, 2000 or XP for IP Networking	129
Install or Verify Windows Networking Components	129
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4	130
DHCP Configuration of TCP/IP in Windows XP	130
DHCP Configuration of TCP/IP in Windows 2000	132
DHCP Configuration of TCP/IP in Windows NT4	135
Verifying TCP/IP Properties for Windows XP, 2000, and NT4	137
Configuring the Macintosh for TCP/IP Networking	138
MacOS 8.6 or 9.x	138
MacOS X	139
Verifying TCP/IP Properties for Macintosh Computers	139
Verifying the Readiness of Your Internet Account	140
Are Login Protocols Used?	140
What Is Your Configuration Information?	140
Obtaining ISP Configuration Information for Windows Computers	141
Obtaining ISP Configuration Information for Macintosh Computers	142
Restarting the Network	143
Appendix D Wireless Networking Basics	145
Wireless Networking Overview	145
Infrastructure Mode	145
Ad Hoc Mode (Peer-to-Peer Workgroup)	146
Network Name: Extended Service Set Identification (ESSID)	146
Authentication and WEP	147
802.11 Authentication	147
Open System Authentication	148
Shared Key Authentication	148
Overview of WEP Parameters	149
Key Size	150
WEP Configuration Options	151
Wireless Channels	151
WPA Wireless Security	152
How Does WPA Compare to WEP?	153
How Does WPA Compare to IEEE 802.11i?	154
What are the Key Features of WPA Security?	154
WPA Authentication: Enterprise-level User Authentication via 802.1x/EAP and RADIUS	156
WPA Data Encryption Key Management	158
Is WPA Perfect?	160
Product Support for WPA	160
Supporting a Mixture of WPA and WEP Wireless Clients is Discouraged	160
Changes to Wireless Access Points	161
Changes to Wireless Network Adapters	161
Changes to Wireless Client Programs	162
Glossary	163
List of Glossary Terms	163

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Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

Introduction

2-5

M-10153-01

Extensive Protocol Support

The WGU624 wireless router supports the Transmission Control Protocol/Internet Protocol

(TCP/IP) and Routing Information Protocol (RIP). For further information about TCP/IP, refer to

Appendix B, “Network, Routing, Firewall, and Basics”

•

IP Address Sharing by NAT

The WGU624 wireless router allows several networked PCs to share an Internet account using

only a single IP address, which may be statically or dynamically assigned by your Internet

service provider (ISP). This technique, known as NAT, allows the use of an inexpensive

single-user ISP account.

•

Automatic Configuration of Attached PCs by DHCP

The WGU624 wireless router dynamically assigns network configuration information,

including IP, gateway, and domain name server (DNS) addresses, to attached PCs on the LAN

using the Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies

configuration of PCs on your local network.

•

DNS Proxy

When DHCP is enabled and no DNS addresses are specified, the router provides its own

address as a DNS server to the attached PCs. The router obtains actual DNS addresses from

the ISP during connection setup and forwards DNS requests from the LAN.

•

PPP over Ethernet (PPPoE)

PPPoE is a protocol for connecting remote hosts to the Internet over a DSL connection by

simulating a dial-up connection. This feature eliminates the need to run a login program such

as Entersys or WinPOET on your PC.

Easy Installation and Management

You can install, configure, and operate the Double 108 Mbps Wireless Firewall Router WGU624

within minutes after connecting it to the network. The following features simplify installation and

management tasks:

•

Browser-based management

Browser-based configuration allows you to easily configure your router from almost any type

of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup Wizard is

provided and online help documentation is built into the browser-based Web Management

Interface.

•

Smart Wizard

The WGU624 wireless router Smart Wizard automatically senses the type of Internet

connection, asking you only for the information required for your type of ISP account.