Motorola SURFboard SBG940 User Manual Page 18
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Overview Installation Troubleshooting Contact FAQ Specifications Glossary License
Configuration: Basic Gateway TCP/IP Wireless USB
Security
The SBG940 provides:
• A firewall to protect the SBG940 LAN from undesired attacks over the Internet
• For wireless transmissions, data encryption and network access control
Network Address Translation (NAT) provides some security because the IP addresses of SBG940 LAN computers
are not visible on the Internet.
This diagram does not necessarily correspond to the network cabling. A full discussion of network security is
beyond the scope of this document.
SBG940 security measures shown in a logical network diagram
Firewall
The SBG940 firewall protects the SBG940 LAN from undesired attacks and other intrusions from the Internet. It
provides an advanced integrated stateful-inspection firewall supporting intrusion detection, session tracking, and
denial-of-service attack prevention. The firewall:
• Maintains state data for every TCP/IP session on the OSI network and transport layers
• Monitors all incoming and outgoing packets, applies the firewall policy to each one, and screens for improper
packets and intrusion attempts
• Provides comprehensive logging for all:
— User authentications
— Rejected internal and external connection requests
— Session creation and termination
— Outside attacks (intrusion detection)
You can configure the firewall filters to set rules for port usage. For information about choosing a predefined
firewall policy template, see “Setting the Firewall Policy”.
SBG940
Firewall
ComputerComputer
Wired Ethernet LAN Wireless LAN
LaptopComputer PDA
Wireless Security:
Encryption, MAC access control,
or closed network operation
Internet
DMZ computer
- User Guide 1
- Contents 5
- Overview 7
- Easy Setup 8
- Network Connection Types 8
- Sample Hybrid LAN 9
- Optional Accessories 10
- Front Panel 11
- Rear Panel 12
- SBG940 LAN Choices 13
- Wireless LAN 14
- Wired Ethernet LAN 15
- 10 SBG940 User Guide 16
- USB Connection 17
- Caution! 17
- Security 18
- 13 SBG940 User Guide 19
- Port Forwarding 20
- Virtual Private Networks 20
- Related Documentation 20
- Installation 21
- Precautions 22
- Signing Up for Service 22
- Computer System Requirements 23
- Cabling the LAN 24
- Wall Mounting 27
- 22 SBG940 User Guide 28
- Wall Mounting Template 29
- Basic Configuration 30
- 25 SBG940 User Guide 31
- 26 SBG940 User Guide 32
- Click To Perform 32
- Changing the Default Password 33
- Enabling Remote Access 34
- Getting Help 35
- Setting the Firewall Policy 36
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- 33 SBG940 User Guide 39
- Field Description 39
- 34 SBG940 User Guide 40
- Field or Button Description 40
- 35 SBG940 User Guide 41
- Firewall > LOGS Page 42
- Configuring Port Triggers 43
- • DirectX 7 and DirectX 8 43
- • MSN Games by Zone.com 43
- • Battle.net 43
- Configuring a Gaming DMZ Host 44
- • The use of random ports 44
- Configuring the Gateway 45
- Gateway > STATUS Page 46
- Gateway > WAN Page 47
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- CAUTION! 50
- 45 SBG940 User Guide 51
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- 47 SBG940 User Guide 53
- • The application port number 54
- 49 SBG940 User Guide 55
- 50 SBG940 User Guide 56
- Gateway > LOG Page 57
- Configuring TCP/IP 58
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- 65 SBG940 User Guide 71
- Setting Up Your Wireless LAN 72
- • Is much easier to configure 73
- Configuring WPA on the SBG940 74
- 69 SBG940 User Guide 75
- 8 Click Save Changes 75
- Configuring WEP on the SBG940 76
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- • Wireless > STATUS Page 84
- • Wireless > NETWORK Page 84
- Wireless > STATUS Page 85
- Wireless > NETWORK Page 86
- 81 SBG940 User Guide 87
- 83 SBG940 User Guide 89
- Wireless > STATISTICS page 90
- 85 SBG940 User Guide 91
- Setting Up a USB Driver 92
- 87 SBG940 User Guide 93
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- 92 SBG940 User Guide 98
- 6 Click Next 98
- 94 SBG940 User Guide 100
- SBG940 User Guide 101
- ExitPrint 101
- 96 SBG940 User Guide 102
- Click Settings 104
- Click the Hardware tab: 104
- 100 SBG940 User Guide 106
- 101 SBG940 User Guide 107
- 102 SBG940 User Guide 108
- 105 SBG940 User Guide 111
- Troubleshooting 112
- 107 SBG940 User Guide 113
- Contact Us 114
- Frequently-Asked Questions 115
- Specifications 117
- 112 SBG940 User Guide 118
- Glossary 119
- 114 SBG940 User Guide 120
- 115 SBG940 User Guide 121
- 116 SBG940 User Guide 122
- 117 SBG940 User Guide 123
- 118 SBG940 User Guide 124
- 119 SBG940 User Guide 125
- 120 SBG940 User Guide 126
- 121 SBG940 User Guide 127
- 122 SBG940 User Guide 128
- 123 SBG940 User Guide 129
- printed 129
- 124 SBG940 User Guide 130
- 125 SBG940 User Guide 131
- 126 SBG940 User Guide 132
- 127 SBG940 User Guide 133
- 128 SBG940 User Guide 134
- 129 SBG940 User Guide 135
- but at much lower cost 136
- Software License 137
- Visit our website at: 138
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