ZyXEL Communications P-335 Plus User Manual page 11

Chapter 7
Network Address Translation (NAT) ..................................................................... 77
7.1 NAT Overview
7.2 Using NAT ..........................................................................................................77
7.3 General NAT Screen ..........................................................................................78
7.4 NAT Application Screen
7.5 Trigger Port Forwarding ....................................................................................82
7.6 NAT Advanced Screen .......................................................................................83
Chapter 8
Dynamic DNS.......................................................................................................... 87
8.1 Dynamic DNS Introduction ................................................................................87
8.2 Dynamic DNS Screen ......................................................................................87
Chapter 9
Firewall.................................................................................................................... 89
9.1 Introduction to Firewall .....................................................................................89
9.2 Triangle Routes ..................................................................................................90
9.3 General Firewall Screen
9.4 Services Screen ................................................................................................92
Chapter 10
Content Filtering ................................................................................................... 95
10.1 Introduction to Content Filtering .......................................................................95
10.2 Restrict Web Features .....................................................................................95
10.3 Days and Times ...............................................................................................95
10.4 Filter Screen .....................................................................................................95
10.5 Schedule ..........................................................................................................97
10.6 Customizing Keyword Blocking URL Checking ................................................98
Table of Contents
.................................................................................................77
7.2.1 Port Forwarding: Services and Port Numbers ..........................................77
7.2.2 Configuring Servers Behind Port Forwarding (Example) ..........................78
7.4.1 Game List Example ..................................................................................81
7.5.1 Trigger Port Forwarding Example .............................................................83
7.5.2 Two Points To Remember About Trigger Ports .........................................83
8.1.1 DynDNS Wildcard .....................................................................................87
9.1.1 What is a Firewall? ...................................................................................89
9.1.2 Stateful Inspection Firewall .......................................................................89
9.1.3 About the ZyXEL Device Firewall .............................................................89
9.1.4 Guidelines For Enhancing Security With Your Firewall ............................90
9.2.1 Triangle Routes and IP Alias ....................................................................91
10.6.1 Domain Name or IP Address URL Checking ..........................................98
10.6.2 Full Path URL Checking .........................................................................98
10.6.3 File Name URL Checking .......................................................................99
...................................................................................79
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P-335 Plus User's Guide
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