Netgear Modem FVS318G User Manual Page 34
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ProSafe Gigabit 8 Port VPN Firewall FVS318G Reference Manual
2-10 Connecting the VPN Firewall to the Internet
v1.1, August 2010
The WAN Mode screen allows you to configure how the VPN firewalll uses the external Internet
connection. This screen gives you two choices for accessing the external Internet connection.
• Network Address Translation (NAT). This technique allows several computers on a LAN to
share the same Internet connection (IP address) while using private IP address on the LAN,
which are hidden from the Internet.
• Classical Routing. This method allows the VPN firewall to perform the routing, but requires
separate valid static Internet IP address for each PC on your LAN.
Network Address Translation
Network Address Translation (NAT) allows all PCs on your LAN to share a single public Internet
IP address. From the Internet, there is only a single device (the VPN firewall) and a single IP
address. PCs on your LAN can use any private IP address range, and these IP addresses are not
visible from the Internet.
• The VPN firewall uses NAT to select the correct PC (on your LAN) to receive any incoming
data.
• If you only have a single public Internet IP address, you MUST use NAT. (the default setting).
• If your ISP has provided you with multiple public IP addresses, you can use one address as the
primary shared address for Internet access by your PCs, and you can map incoming traffic on
the other public IP addresses to specific PCs on your LAN. This one-to-one inbound mapping
is configured using an inbound firewall rule.
Classical Routing
In classical routing mode, the VPN firewall performs routing, but without NAT. To gain Internet
access, each PC on your LAN must have a valid static Internet IP address.
If your ISP has allocated a number of static IP addresses to you, and you have assigned one of
these addresses to each PC, you can choose classical routing. Or, you can use classical routing for
routing private IP addresses within a campus environment.
To learn the status of the WAN port, you can view the Router Status screen (see “Viewing the
VPN Firewall Configuration and System Status” on page 6-30) or look at the LEDs on the front
panel (see “VPN Firewall Front and Rear Panels” on page 1-6).
- ProSafe Gigabit 8 Port 1
- VPN Firewall FVS318G 1
- Reference Manual 1
- Additional Copyrights 3
- Contents 7
- About This Manual 13
- How to Print This Manual 14
- Revision History 14
- About This Manual xv 15
- Chapter 1 17
- Introduction 17
- 1-2 Introduction 18
- Security Features 19
- Extensive Protocol Support 20
- Package Contents 21
- 1-6 Introduction 22
- Figure 1-1 22
- Table 1-1. LED Descriptions 22
- Introduction 1-7 23
- Figure 1-2 23
- Qualified Web Browsers 24
- Chapter 2 25
- Logging into the VPN Firewall 26
- Navigating the Menus 27
- Figure 2-2 28
- Figure 2-3 29
- Figure 2-4 30
- Figure 2-5 31
- Figure 2-6 32
- Configuring the WAN Mode 33
- Configuring Dynamic DNS 35
- Figure 2-10 37
- Chapter 3 39
- LAN Configuration 39
- 3-2 LAN Configuration 40
- LAN Configuration 3-3 41
- Figure 3-1 41
- 3-4 LAN Configuration 42
- LAN Configuration 3-5 43
- Creating the Network Database 44
- Viewing the Network Database 45
- 3-8 LAN Configuration 46
- LAN Configuration 3-9 47
- Figure 3-3 47
- 3-10 LAN Configuration 48
- Figure 3-4 48
- LAN Configuration 3-11 49
- 3-12 LAN Configuration 50
- Figure 3-5 50
- LAN Configuration 3-13 51
- Configuring Static Routes 52
- LAN Configuration 3-15 53
- Figure 3-6 53
- Figure 3-7 53
- Static Route Example 54
- LAN Configuration 3-17 55
- Figure 3-8 55
- 3-18 LAN Configuration 56
- Chapter 4 57
- Services-Based Rules 59
- ., or an address range 62
- Figure 4-1 64
- Configuring LAN WAN Rules 65
- Figure 4-2 66
- Figure 4-3 67
- Configuring DMZ WAN Rules 68
- Configuring LAN DMZ Rules 69
- Figure 4-6 70
- Figure 4-7 70
- Inbound Rules Examples 71
- Figure 4-9 72
- Figure 4-10 73
- Outbound Rules Example 75
- Attack Checks 76
- Setting Session Limits 78
- Figure 4-15 79
- Adding Customized Services 80
- Figure 4-16 81
- Figure 4-17 82
- Creating Bandwidth Profiles 83
- Figure 4-18 84
- Figure 4-19 84
- Figure 4-20 86
- To enable Content Filtering: 88
- Figure 4-22 90
- Figure 4-23 92
- Configuring Port Triggering 93
- Figure 4-24 94
- Figure 4-25 95
- Figure 4-26 96
- Figure 4-27 96
- Administrator Tips 98
- Chapter 5 99
- Virtual Private Networking 99
- Figure 5-1 100
- Figure 5-2 100
- Figure 5-3 102
- Figure 5-4 102
- Figure 5-5 103
- Figure 5-6 104
- Figure 5-7 105
- Figure 5-8 105
- Figure 5-9 106
- Figure 5-10 107
- Figure 5-11 108
- Figure 5-12 109
- Figure 5-13 110
- Figure 5-14 110
- Figure 5-15 111
- Table 5-1 111
- Figure 5-16 112
- Managing VPN Policies 113
- Figure 5-18 114
- Figure 5-19 116
- Configuring VPN Policies 121
- Figure 5-20 122
- Figure 5-21 124
- Managing Certificates 128
- Figure 5-22 131
- Figure 5-23 132
- Figure 5-24 132
- Figure 5-25 133
- Figure 5-26 134
- Figure 5-27 135
- Figure 5-28 136
- Figure 5-29 138
- Figure 5-30 139
- Figure 5-31 141
- Mode Config Operation 142
- Figure 5-32 143
- Figure 5-33 144
- Recommended settings are: 146
- • Encryption Algorithm: 3DES 146
- • Diffie-Hellman: Group 2 146
- • SA Lifetime: 3600 seconds 146
- Figure 5-35 148
- Figure 5-36 149
- Figure 5-37 150
- Figure 5-38 150
- Configuring Keepalives 151
- Figure 5-39 152
- Figure 5-40 153
- Figure 5-41 154
- Chapter 6 155
- Management 162
- Figure 6-1 163
- Adding External Users 164
- Figure 6-4 166
- Figure 6-5 168
- Using an SNMP Manager 170
- Figure 6-6 171
- Figure 6-7 172
- Figure 6-8 173
- Figure 6-9 176
- Monitoring System Performance 177
- Figure 6-10 178
- Viewing the Logs 180
- Enabling the Traffic Meter 181
- Figure 6-12 182
- Figure 6-13 183
- Figure 6-14 184
- Figure 6-15 185
- Figure 6-16 186
- Monitoring Attached Devices 187
- Figure 6-18 188
- Viewing the VPN Logs 189
- Viewing the DHCP Log 190
- Chapter 7 193
- Troubleshooting 193
- Power LED Not On 194
- LEDs Never Turn Off 194
- Troubleshooting 7-3 195
- 7-4 Troubleshooting 196
- Troubleshooting 7-5 197
- Problems with Date and Time 199
- 7-8 Troubleshooting 200
- Figure 7-1 200
- Troubleshooting 7-9 201
- Table 7-1. Diagnostics 201
- 7-10 Troubleshooting 202
- Appendix A 203
- Appendix B 207
- Two Factor Authentication 207
- B-2 Two Factor Authentication 208
- Two Factor Authentication B-3 209
- Figure B-1 209
- Figure B-2 209
- B-4 Two Factor Authentication 210
- Figure B-3 210
- Appendix C 211
- Related Documents 211
- C-2 Related Documents 212
- Numerics 213
- Index-10 222
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