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Reference Manual for the 54 Mbps Wireless Router WGR614 v4
Wireless Networking Basics D-3
December 2003
802.11 Authentication
The 802.11 standard defines several services that govern how two 802.11 devices communicate.
The following events must occur before an 802.11 Station can communicate with an Ethernet
network through an access point such as the one built in to the WGR614 v4:
1. Turn on the wireless station.
2. The station listens for messages from any access points that are in range.
3. The station finds a message from an access point that has a matching SSID.
4. The station sends an authentication request to the access point.
5. The access point authenticates the station.
6. The station sends an association request to the access point.
7. The access point associates with the station.
8. The station can now communicate with the Ethernet network through the access point.
An access point must authenticate a station before the station can associate with the access point or
communicate with the network. The IEEE 802.11 standard defines two types of authentication:
Open System and Shared Key.
• Open System Authentication allows any device to join the network, assuming that the device
SSID matches the access point SSID. Alternatively, the device can use the “ANY” SSID
option to associate with any available Access Point within range, regardless of its SSID.
• Shared Key Authentication requires that the station and the access point have the same WEP
Key to authenticate. These two authentication procedures are described below.
Open System Authentication
The following steps occur when two devices use Open System Authentication:
1. The station sends an authentication request to the access point.
2. The access point authenticates the station.
3. The station associates with the access point and joins the network.
This process is illustrated in below.
- Reference Manual for the 1
- 54 Mbps Wireless Router 1
- WGR614 v4 1
- Trademarks 2
- Statement of Conditions 2
- Frequency Notice 3
- Contents 7
- Chapter 1 13
- About This Manual 13
- How to Use this Manual 14
- How to Print this Manual 15
- 4 About This Manual 16
- Chapter 2 17
- Introduction 17
- 802.11g Wireless Networking 18
- Security 19
- Extensive Protocol Support 19
- Maintenance and Support 20
- Package Contents 21
- The Router’s Front Panel 22
- The Router’s Rear Panel 23
- 2-8 Introduction 24
- Connecting the WGR614 v4 28
- Cable or 29
- DSL modem 29
- Chapter 3 39
- Wireless Configuration 39
- Wireless Data 40
- Security Options 40
- Range: Up to 300 Foot Radius 40
- Wireless Configuration 3-3 41
- 3-4 Wireless Configuration 42
- Wireless Configuration 3-5 43
- Default Factory Settings 44
- Wireless Configuration 3-7 45
- How to Configure WEP 49
- 3-12 Wireless Configuration 50
- Chapter 4 51
- Content Filtering 51
- 4-2 Content Filtering 52
- Content Filtering 4-3 53
- 4-4 Content Filtering 54
- Figure 4-4: Schedule menu 54
- Content Filtering 4-5 55
- Figure 4-5: Logs menu 55
- 4-6 Content Filtering 56
- Table 4-2. Log action buttons 56
- Content Filtering 4-7 57
- Figure 4-6: Email menu 57
- 4-8 Content Filtering 58
- Chapter 5 59
- Maintenance 59
- 5-2 Maintenance 60
- Upgrading the Router Software 63
- Configuration File Management 64
- Maintenance 5-7 65
- Erasing the Configuration 66
- Chapter 6 67
- Advanced Configuration 67
- Configuring WAN Setup Options 70
- Using a Dynamic DNS Service 72
- Using LAN IP Setup Options 73
- 6-8 Advanced Configuration 74
- Using Address Reservation 75
- 6-14 Advanced Configuration 80
- Chapter 7 81
- Troubleshooting 81
- LEDs Never Turn Off 82
- LAN or WAN Port LEDs Not On 82
- Troubleshooting 7-3 83
- 7-6 Troubleshooting 86
- Problems with Date and Time 87
- 7-8 Troubleshooting 88
- Appendix A 89
- Technical Specifications 89
- A-2 Technical Specifications 90
- Interface Specifications 90
- Appendix B 91
- IP Addresses and the Internet 92
- Subnet Addressing 94
- Table 7-2. Netmask Formats 96
- Private IP Addresses 97
- Related Documents 99
- Domain Name Server 99
- IP Configuration by DHCP 100
- Ethernet Cabling 101
- Category 5 Cable Quality 102
- Inside Twisted Pair Cables 103
- December 2003 104
- Preparing Your Network 107
- Appendix C 107
- C-2 Preparing Your Network 108
- Preparing Your Network C-5 111
- Verifying TCP/IP Properties 112
- Preparing Your Network C-7 113
- C-8 Preparing Your Network 114
- Preparing Your Network C-9 115
- C-10 Preparing Your Network 116
- Preparing Your Network C-11 117
- C-12 Preparing Your Network 118
- Preparing Your Network C-13 119
- Properties button 120
- 3. Type ipconfig /all 121
- MacOS 8.6 or 9.x 122
- 4. Click Save 123
- Are Login Protocols Used? 124
- 4. Select the IP Address tab 125
- 5. Select the Gateway tab 125
- Computers 126
- Restarting the Network 127
- C-22 Preparing Your Network 128
- Appendix D 129
- Wireless Networking Basics 129
- Authentication and WEP 130
- 802.11 Authentication 131
- Open System Authentication 131
- Shared Key Authentication 132
- Overview of WEP Parameters 133
- Key Size 134
- WEP Configuration Options 134
- Wireless Channels 135
- Glossary 137
- 2 Glossary 138
- 4 Glossary 140
- X.500-lite 141
- 6 Glossary 142
- 8 Glossary 144
- 10 Glossary 146
- 12 Glossary 148
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