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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
2-2 Safeguarding Your Network
v2.1, July 2007
There are several ways you can enhance the security of your wireless network. In order of
increasing effectiveness:
• Turn Off the Broadcast of the Wireless Network Name SSID. If you disable the broadcast
of the SSID, only devices that know the correct SSID can connect. This nullifies the wireless
network ‘discovery’ feature of some products such as Windows XP, but your data is still fully
exposed to an intruder using available wireless eavesdropping tools.
• Restrict Access Based on MAC Address. You can restrict access to only trusted computers
so that unknown computers cannot wirelessly connect to the WNR834B. MAC address
filtering adds an obstacle against unwanted access to your network by the general public, but
the data broadcast over the wireless link is fully exposed. This data includes your trusted MAC
addresses, which can be read and impersonated by a hacker.
• WEP. Wired Equivalent Privacy (WEP) data encryption provides moderate data security.
WEP Shared Key authentication and WEP data encryption can be defeated by a determined
eavesdropper using publicly available tools.
• WPA-PSK and WPA2-PSK. Wi-Fi Protected Access with Pre-Shared Key (WPA-PSK and
WPA2-PSK) data encryption provides extremely strong data security, very effectively
blocking eavesdropping. Because WPA and WPA2 are relatively new standards, older wireless
adapters and devices may not support them. Check whether newer drivers are available from
the manufacturer.
• Turn Off the Wireless LAN. If you disable the wireless LAN, wireless devices cannot
communicate with the router at all. You might choose to turn off the wireless LAN when you
are away or when other users of your network all use wired connections.
Figure 2-1
- NETGEAR RangeMax™ 1
- NEXT Wireless Router 1
- WNR834B User Manual 1
- WNR834B product package 3
- FCC Information to User 4
- FCC Declaration Of Conformity 5
- Contents 7
- About This Manual 11
- How to Use This Manual 12
- How to Print this Manual 12
- Revision History 13
- Chapter 1 15
- Figure 1-1 16
- Figure 1-2 17
- Figure 1-3 18
- Figure 1-4 18
- Figure 1-5 20
- Figure 1-6 22
- Figure 1-7 23
- Configuring Wireless Settings 24
- Figure 1-8 25
- Figure 1-9 27
- Figure 1-10 29
- Figure 1-11 30
- Chapter 2 31
- Safeguarding Your Network 31
- 2-2 Safeguarding Your Network 32
- Figure 2-1 32
- Recommended Security Settings 33
- 2-4 Safeguarding Your Network 34
- Figure 2-2 34
- Safeguarding Your Network 2-5 35
- 2-6 Safeguarding Your Network 36
- Safeguarding Your Network 2-7 37
- 2-8 Safeguarding Your Network 38
- Figure 2-3 38
- Wireless Security 39
- Figure 2-4 40
- Figure 2-5 41
- Figure 2-6 42
- Figure 2-7 42
- Backing Up Your Configuration 44
- Understanding Your Firewall 45
- Chapter 3 47
- Figure 3-1 48
- Figure 3-2 49
- Figure 3-3 50
- Scheduling Blocking 51
- Figure 3-5 52
- Field Description 53
- Figure 3-6 54
- Setting the Time 55
- Chapter 4 57
- Figure 4-1 58
- Using Address Reservation 60
- Using a Dynamic DNS Service 61
- Figure 4-3 62
- Disabling the SPI Firewall 63
- Configuring Static Routes 64
- Figure 4-5 65
- Figure 4-6 67
- Figure 4-7 68
- Chapter 5 71
- Fine-Tuning Your Network 71
- Through Your Router 72
- Fine-Tuning Your Network 5-3 73
- 5-4 Fine-Tuning Your Network 74
- Fine-Tuning Your Network 5-5 75
- 5-6 Fine-Tuning Your Network 76
- Adding a Custom Service 77
- 5-8 Fine-Tuning Your Network 78
- Figure 5-2 78
- Configuring Port Triggering 79
- 5-10 Fine-Tuning Your Network 80
- Figure 5-3 80
- Fine-Tuning Your Network 5-11 81
- Figure 5-4 81
- Using Universal Plug and Play 82
- Fine-Tuning Your Network 5-13 83
- 5-14 Fine-Tuning Your Network 84
- Fine-Tuning Your Network 5-15 85
- Figure 5-6 85
- 5-16 Fine-Tuning Your Network 86
- Fine-Tuning Your Network 5-17 87
- Figure 5-7 87
- Figure 5-8 87
- 5-18 Fine-Tuning Your Network 88
- Figure 5-9 88
- Fine-Tuning Your Network 5-19 89
- Figure 5-10 89
- Changing the MTU 90
- Fine-Tuning Your Network 5-21 91
- Table 5-1. Common MTU Sizes 91
- 5-22 Fine-Tuning Your Network 92
- Figure 5-11 92
- Technologies 93
- 5-24 Fine-Tuning Your Network 94
- Chapter 6 95
- Figure 6-1 96
- Figure 6-4 99
- Figure 6-5 100
- Erasing the Configuration 101
- Upgrading the Router Software 102
- Figure 6-7 103
- Figure 6-8 104
- Figure 6-9 105
- Chapter 7 107
- Troubleshooting 107
- 7-2 Troubleshooting 108
- Troubleshooting 7-3 109
- 7-4 Troubleshooting 110
- Troubleshooting 7-5 111
- 7-6 Troubleshooting 112
- Troubleshooting 7-7 113
- Problems with Date and Time 114
- Troubleshooting 7-9 115
- 7-10 Troubleshooting 116
- Figure 7-1 116
- Troubleshooting 7-11 117
- 7-12 Troubleshooting 118
- Figure 7-2 118
- Troubleshooting 7-13 119
- 7-14 Troubleshooting 120
- Appendix A 121
- Technical Specifications 121
- General Specifications 122
- Technical Specifications A-3 123
- A-4 Technical Specifications 124
- Appendix B 125
- Related Documents 125
- B-2 Related Documents 126
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