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Reference Manual for the RangeMax Wireless Router WPN824
B-8 Network, Routing, Firewall, and Basics
202-10072-01, March 2005
The following figure illustrates a single IP address operation.
Figure B-3: Single IP Address Operation Using NAT
This scheme offers the additional benefit of firewall-like protection because the internal LAN
addresses are not available to the Internet through the translated connection. All incoming
inquiries are filtered out by the router. This filtering can prevent intruders from probing your
system. However, using port forwarding, you can allow one computer (for example, a Web server)
on your local network to be accessible to outside users.
MAC Addresses and Address Resolution Protocol
An IP address alone cannot be used to deliver data from one LAN device to another. To send data
between LAN devices, you must convert the IP address of the destination device to its media
access control (MAC) address. Each device on an Ethernet network has a unique MAC address,
which is a 48-bit number assigned to each device by the manufacturer. The technique that
associates the IP address with a MAC address is known as address resolution. Internet Protocol
uses the Address Resolution Protocol (ARP) to resolve MAC addresses.
7786EA
1
92.168.0.2
1
92.168.0.3
1
92.168.0.4
1
92.168.0.5
192.168.0.1 172.21.15.105
Private IP addresses
assigned by user
Internet
IP addresses
assigned by ISP
- Reference Manual for the 1
- RangeMax Wireless 1
- Router WPN824 1
- Contents 5
- Chapter 1 11
- About This Manual 11
- How to Use This Manual 12
- How to Print this Manual 13
- 1-4 About This Manual 14
- Chapter 2 15
- Introduction 15
- 802.11g Wireless Networking 16
- Security 17
- Extensive Protocol Support 18
- Maintenance and Support 19
- NETGEAR Related Products 20
- Package Contents 20
- The Router’s Rear Panel 21
- 2-8 Introduction 22
- Introduction 2-9 23
- 2-10 Introduction 24
- Chapter 3 25
- ERIFY WIRELESS CONNECTIVITY 27
- Troubleshooting Tips 28
- Using the Smart Setup Wizard 35
- Chapter 4 37
- Wireless Configuration 37
- 4-2 Wireless Configuration 38
- Wireless Data 39
- Security Options 39
- Range: up to 300 foot radius 39
- 4-4 Wireless Configuration 40
- Wireless Configuration 4-5 41
- 4-6 Wireless Configuration 42
- Wireless Configuration 4-7 43
- Default Factory Settings 44
- How to Configure WEP 46
- Chapter 5 51
- Content Filtering 51
- 5-2 Content Filtering 52
- Figure 5-1: Block Sites menu 52
- Content Filtering 5-3 53
- 5-4 Content Filtering 54
- Content Filtering 5-5 55
- Figure 5-4: Schedule menu 55
- Figure 5-5: Logs menu 56
- 5-6 Content Filtering 56
- Content Filtering 5-7 57
- Figure 5-6: Email menu 57
- Table 5-2. Log action buttons 57
- 5-8 Content Filtering 58
- Chapter 6 59
- Maintenance 59
- 6-2 Maintenance 60
- Maintenance 6-5 63
- Configuration File Management 64
- Upgrading the Router Software 65
- Maintenance 6-9 67
- 6-10 Maintenance 68
- Chapter 7 69
- Troubleshooting 69
- Lights Never Turn Off 70
- LAN or WAN Port Lights Not On 70
- Troubleshooting 7-3 71
- Troubleshooting 7-5 73
- 7-6 Troubleshooting 74
- Troubleshooting 7-7 75
- Problems with Date and Time 76
- Chapter 8 77
- Wireless Card Access List 79
- Wireless Card Access Setup 80
- Adding a Custom Service 85
- Disabling the SPI Firewall 88
- Setting the MTU Size 89
- Using a Dynamic DNS Service 92
- Configuring Static Routes 93
- Figure 8-12. UPnP Menu 97
- Appendix A 99
- Technical Specifications 99
- A-2 Technical Specifications 100
- 202-10072-01, March 2005 100
- Appendix B 101
- IP Addresses and the Internet 102
- Subnet Addressing 104
- Table 8-2. Netmask Formats 106
- Private IP Addresses 107
- Related Documents 109
- Domain Name Server 109
- IP Configuration by DHCP 110
- Ethernet Cabling 111
- Category 5 Cable Quality 112
- Inside Twisted Pair Cables 113
- Appendix C 117
- Preparing Your Network 117
- C-2 Preparing Your Network 118
- C-4 Preparing Your Network 120
- Preparing Your Network C-7 123
- Verifying TCP/IP Properties 124
- Preparing Your Network C-9 125
- C-10 Preparing Your Network 126
- Preparing Your Network C-11 127
- C-12 Preparing Your Network 128
- Preparing Your Network C-13 129
- C-14 Preparing Your Network 130
- Preparing Your Network C-15 131
- Properties button 132
- 3. Type ipconfig /all 133
- MacOS 8.6 or 9.x 134
- 4. Click Save 135
- Are Login Protocols Used? 136
- 4. Select the IP Address tab 137
- 5. Select the Gateway tab 137
- Computers 138
- Restarting the Network 139
- C-24 Preparing Your Network 140
- Appendix D 141
- Wireless Networking Basics 141
- 802.11 Authentication 143
- Open System Authentication 143
- Shared Key Authentication 144
- Overview of WEP Parameters 145
- Key Size 146
- Wireless Channels 147
- How Does WPA Compare to WEP? 149
- Wired Network with Optional 152
- 802.1x Port Based Network 152
- Access Control 152
- Wireless LAN 152
- Controlled Port 153
- Is WPA/WPA2 Perfect? 156
- Product Support for WPA/WPA2 156
- Glossary 159
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