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ProSafe 802.11g Wireless VPN Firewall FVG318 Reference Manual
4-2 Firewall Protection and Content Filtering
v1.0, September 2007
Certain commonly used web components can also be blocked for increased security. Some of these
components can be used by malicious websites to infect computers that access them. For example:
• Proxy. A proxy server allows computers to route connections to other computers through the
proxy, thus circumventing certain firewall rules. For example, if connections to a specific IP
address are blocked by a firewall rule, the requests can be routed through a proxy that is not
blocked by the rule, rendering the restriction ineffective. Enabling this feature blocks proxy
servers.
• Java. Enabling this feature blocks java applets from being downloaded from pages that
contain them. Java applets are small programs embedded in web pages that enable dynamic
functionality of the page. A malicious applet can be used to compromise or infect computers.
Enabling this setting blocks Java applets from being downloaded.
• Active X. Similar to Java applets, ActiveX controls are installed on Windows computers
running Internet Explorer. A malicious ActiveX control can be used to compromise or infect
computers. Enabling this setting blocks ActiveX applets from being downloaded.
• Cookies. Cookies are used to store session information by websites that usually require login.
However, several websites use cookies to store tracking information and browsing habits.
• Enabling this option filters out cookies from being created by a website.
To enable Content Filtering:
1. Select Security > Block Sites from the menu. The Block Sites screen will display.
Note: Many websites require that cookies be accepted in order for the site to be
accessed properly. Blocking cookies may cause many websites to not function
properly.
Figure 4-1
- ProSafe 802.11g Wireless 1
- VPN Firewall FVG318 1
- Reference Manual 1
- FOR HOME OR OFFICE USE 5
- Contents 7
- About This Manual 13
- How to Use This Manual 14
- How to Print this Manual 14
- Revision History 15
- Chapter 1 17
- Introduction 17
- 1-2 Introduction 18
- Security 19
- Extensive Protocol Support 19
- 1-4 Introduction 20
- Package Contents 21
- The FVG318 Rear Panel 22
- Introduction 1-7 23
- 1-8 Introduction 24
- Chapter 2 25
- B in the illustration) 26
- Internet Port 27
- Local Ports (8) 27
- Wireless 27
- Figure 2-5 28
- Name and Password.) 29
- Figure 2-8 30
- Configuring Your Time Zone 35
- Troubleshooting Tips 36
- Chapter 3 39
- Figure 3-1 40
- Figure 3-2 42
- SSID and WEP Settings 45
- Figure 3-3 46
- Figure 3-4 47
- Figure 3-5 49
- Configuring WPA with RADIUS 50
- Figure 3-6 51
- Configuring WPA2 with RADIUS 52
- Figure 3-8 54
- Configuring WPA-PSK 55
- Configuring WPA2-PSK 56
- Figure 3-10 57
- Figure 3-11 58
- Chapter 4 61
- Figure 4-1 62
- Figure 4-2 63
- Figure 4-3 65
- Figure 4-4 67
- Figure 4-5 67
- Order of Precedence for Rules 69
- Default DMZ Server 70
- Attack Checks 71
- Services 72
- Figure 4-8 73
- Figure 4-9 74
- Figure 4-10 76
- Chapter 5 79
- Overview of VPN Configuration 80
- Planning a VPN 81
- VPN Tunnel Configuration 82
- Figure 5-3 83
- Figure 5-4 84
- Remote PC 85
- Figure 5-7 87
- Figure 5-8 88
- Figure 5-9 89
- Figure 5-10 89
- Figure 5-11 90
- Figure 5-12 91
- Figure 5-13 92
- Figure 5-14 93
- Figure 5-15 93
- Figure 5-16 94
- Figure 5-17 94
- Figure 5-18 95
- Figure 5-19 95
- Figure 5-20 96
- Figure 5-21 96
- Figure 5-22 97
- Figure 5-23 98
- Figure 5-27 100
- Activating a VPN Tunnel 101
- Figure 5-29 102
- Figure 5-30 103
- Figure 5-31 103
- Deactivating a VPN Tunnel 104
- Deleting a VPN Tunnel 105
- Chapter 6 107
- Figure 6-2 109
- Figure 6-3 110
- VPN Consortium Scenario 1: 115
- Figure 6-5 116
- Figure 6-6 117
- Figure 6-7 117
- Figure 6-8 118
- Figure 6-9 119
- Digital Certificates 121
- Figure 6-10 122
- Chapter 7 125
- Maintenance 125
- 7-2 Maintenance 126
- 7-4 Maintenance 128
- Figure 7-3 128
- Maintenance 7-5 129
- 7-6 Maintenance 130
- Figure 7-4 130
- Chapter 8 131
- Advanced Configuration 131
- 8-2 Advanced Configuration 132
- Figure 8-1 132
- Advanced Configuration 8-3 133
- Using Address Reservation 134
- Configuring Static Routes 135
- Configuring RIP 136
- Static Route Example 137
- 8-8 Advanced Configuration 138
- Advanced Configuration 8-9 139
- Figure 8-6 139
- SNMP Administration 140
- Advanced Configuration 8-11 141
- 8-12 Advanced Configuration 142
- Figure 8-8 142
- Chapter 9 143
- Troubleshooting 143
- LEDs Never Turn Off 144
- Troubleshooting 9-3 145
- 9-4 Troubleshooting 146
- 9-6 Troubleshooting 148
- Problems with Date and Time 149
- 9-8 Troubleshooting 150
- Appendix A 151
- Technical Specifications 153
- Appendix B 155
- Related Documents 155
- B-2 Related Documents 156
- Appendix C 157
- Configuring the Gateways 158
- The FVG318-to-FVG318 Case 159
- Configuring the VPN Tunnel 160
- The FVG318-to-FVS318v2 Case 163
- The FVG318-to-FVL328 Case 166
- The FVG318-to-VPN Client Case 169
- Figure C-7 171
- Figure C-8 172
- Figure C-9 172
- Figure C-10 173
- Figure C-11 173
- Figure C-12 174
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