P-334U/P-335U User’s Guide
14
Table of Contents
Chapter 9
Network Address Translation (NAT)
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115
9.1 NAT Overview
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115
9.2 Using NAT
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115
9.2.1 Port Forwarding: Services and Port Numbers
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115
9.2.2 Configuring Servers Behind Port Forwarding (Example)
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116
9.3 General NAT Screen
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116
9.4 NAT Application Screen
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117
9.4.1 Game List Example
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119
9.5 Trigger Port Forwarding
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120
9.5.1 Trigger Port Forwarding Example
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121
9.5.2 Two Points To Remember About Trigger Ports
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121
9.6 NAT Advanced Screen
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121
Chapter 10
Dynamic DNS
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125
10.1 Dynamic DNS Introduction
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125
10.1.1 DynDNS Wildcard
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125
10.2 Dynamic DNS Screen
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125
Chapter 11
Firewall
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127
11.1 Introduction to Firewall
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127
11.1.1 What is a Firewall?
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127
11.1.2 Stateful Inspection Firewall.
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127
11.1.3 About the ZyXEL Device Firewall
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127
11.1.4 Guidelines For Enhancing Security With Your Firewall
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128
11.2 General Firewall Screen
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128
11.3
Services Screen
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129
Chapter 12
Content Filtering
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133
12.1 Introduction to Content Filtering
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133
12.2 Restrict Web Features
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133
12.3 Days and Times
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133
12.4 Filter Screen
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133
12.5 Schedule
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135
12.6 Customizing Keyword Blocking URL Checking
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136
12.6.1 Domain Name or IP Address URL Checking
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136
12.6.2 Full Path URL Checking
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136
12.6.3 File Name URL Checking
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137