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Valorado. / 5. Basado en revisión del cliente
Reference Manual for the MR814v2 Cable/DSL Wireless Router
Wireless Networking Basics D-5
5. The station connects to the network.
If the decrypted text does not match the original challenge text (i.e., the access point and station do
not share the same WEP Key), then the access point will refuse to authenticate the station and the
station will be unable to communicate with either the 802.11b network or Ethernet network.
This process is illustrated in below.
Figure 7-5: 802.11b shared key authentication
Overview of WEP Parameters
Before enabling WEP on an 802.11b network, you must first consider what type of encryption you
require and the key size you want to use. Typically, there are three WEP Encryption options
available for 802.11b products:
1. Do Not Use WEP: The 802.11b network does not encrypt data. For authentication purposes, the
network uses Open System Authentication.
2. Use WEP for Encryption: A transmitting 802.11b device encrypts the data portion of every
packet it sends using a configured WEP Key. The receiving 802.11b device decrypts the data using
the same WEP Key. For authentication purposes, the 802.11b network uses Open System
Authentication.
INTERNET LOCAL
ACT
12345678
LNK
LNK/ACT
100
Cable/DSL
ProSafeWirelessVPN SecurityFirewall
MODEL
FVM318
PWR TEST
WLAN
Enable
Access Point1) Authentication
request sent to AP
2) AP sends challenge text
3) Client encrypts
challenge text and
sends it back to AP
4) AP decrypts, and if correct,
authenticates client
5) Client connects to network
802.11b Authentication
Shared Key Steps
Cable or
DLS modem
Client
attempting
to connect
- Reference Manual for the 1
- MR814v2 Cable/DSL 1
- Wireless Router 1
- Trademarks 2
- Statement of Conditions 2
- Contents 5
- Preface 11
- About This Manual 11
- Special Message Formats 12
- Chapter 1 13
- Introduction 13
- 1-2 Introduction 14
- Security 15
- Extensive Protocol Support 15
- Maintenance and Support 16
- Package Contents 17
- The Router’s Front Panel 18
- The Router’s Rear Panel 19
- 1-8 Introduction 20
- Chapter 2 21
- Cable or DSL modem 24
- Cable or 25
- DSL modem 25
- PPPoE Wizard-Detected Option 28
- Chapter 7, “Troubleshooting.” 32
- ISP Does Not Require Login 33
- ISP Does Require Login 33
- Chapter 3 37
- Wireless Configuration 37
- Wireless Data 38
- Security Options 38
- Range: Up to 500 Feet 38
- Wireless Configuration 3-3 39
- Wireless Configuration 3-5 41
- 3-6 Wireless Configuration 42
- Wireless Configuration 3-7 43
- Configure WEP 46
- 3-12 Wireless Configuration 48
- Chapter 4 49
- Content Filtering 49
- 4-2 Content Filtering 50
- Figure 4-1: Block Sites menu 50
- Content Filtering 4-3 51
- 4-4 Content Filtering 52
- Content Filtering 4-5 53
- Figure 4-4: Schedule menu 53
- 4-6 Content Filtering 54
- Figure 4-5: Logs menu 54
- Content Filtering 4-7 55
- Figure 4-6: Email menu 55
- Table 4-2. Log action buttons 55
- 4-8 Content Filtering 56
- Chapter 5 57
- Maintenance 57
- 5-2 Maintenance 58
- Maintenance 5-3 59
- 5-4 Maintenance 60
- Upgrading the Router Software 61
- Configuration File Management 62
- Maintenance 5-7 63
- Erasing the Configuration 64
- Chapter 6 65
- Adding a Custom Service 66
- Setting the MTU Size 69
- Using Address Reservation 72
- Using a Dynamic DNS Service 73
- Configuring Static Routes 74
- Figure 6-6. UPnP Menu 78
- 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
- 192.0.1.x to 223.255.254.x 94
- Subnet Addressing 95
- Table 7-2. Netmask Formats 96
- Private IP Addresses 97
- Related Documents 99
- IP Configuration by DHCP 100
- What is a Firewall? 101
- Ethernet Cabling 102
- Cable Quality 103
- Appendix C 105
- Preparing Your Network 105
- C-2 Preparing Your Network 106
- Windows 95B, 98, and Me 108
- Preparing Your Network C-5 109
- Verifying TCP/IP Properties 110
- Preparing Your Network C-7 111
- C-8 Preparing Your Network 112
- Preparing Your Network C-9 113
- C-10 Preparing Your Network 114
- Preparing Your Network C-11 115
- C-12 Preparing Your Network 116
- Preparing Your Network C-13 117
- Properties button 118
- 3. Type ipconfig /all 119
- MacOS 8.6 or 9.x 120
- 4. Click Save 121
- Are Login Protocols Used? 122
- 4. Select the IP Address tab 123
- 5. Select the Gateway tab 123
- Computers 124
- Restarting the Network 125
- C-22 Preparing Your Network 126
- Appendix D 127
- Wireless Networking Basics 127
- Authentication and WEP 129
- Open System Authentication 130
- Shared Key Authentication 130
- Overview of WEP Parameters 131
- Key Size 132
- Wireless Channels 133
- Glossary 135
- 2 Glossary 136
- 4 Glossary 138
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