ZyXEL Communications NBG334SH manual 14

Table of Contents
8.2	DHCP Server General Screen ...........................................................................................		105
8.3	DHCP Server Advanced Screen ....................................................................................		106
8.4	Client List Screen ..............................................................................................................		107
Chapter 9
Network Address Translation (NAT)....................................................................................			109
9.1	NAT Overview .................................................................................................................		109
9.2	Using NAT ..........................................................................................................................		109
	9.2.1 Port Forwarding: Services and Port Numbers ..........................................................		109
	9.2.2 Configuring Servers Behind Port Forwarding Example	.............................................	110
9.3	General NAT Screen ...........................................................................................................		110
9.4	NAT Application Screen ....................................................................................................		111
	9.4.1 Game List Example ...................................................................................................		113
9.5	Trigger Port Forwarding .....................................................................................................		114
	9.5.1 Trigger Port Forwarding Example .............................................................................		114
	9.5.2 Two Points To Remember About Trigger Ports .........................................................		115
9.6	NAT Advanced Screen .......................................................................................................		115
Chapter 10
Dynamic DNS ........................................................................................................................			119
10.1 Dynamic DNS Introduction ..............................................................................................			119
	10.1.1 DynDNS Wildcard ...................................................................................................		119
10.2 Dynamic DNS Screen .....................................................................................................			119
Chapter 11
Firewall...................................................................................................................................			121
11.1 Introduction to ZyXEL’s Firewall .....................................................................................			121
	11.1.1 What is a Firewall? .................................................................................................		121
	11.1.2 Stateful Inspection Firewall .....................................................................................		121
	11.1.3 About the ZyXEL Device Firewall ...........................................................................		121
	11.1.4 Guidelines For Enhancing Security With Your Firewall ..........................................		122
11.2 Triangle Routes ................................................................................................................			122
	11.2.1 Triangle Routes and IP Alias ..................................................................................		122
11.3 General Firewall Screen ...............................................................................................			123
11.4 Services Screen ..............................................................................................................			124
Chapter 12
Content Filtering ...................................................................................................................			127
12.1 Introduction to Content Filtering ......................................................................................			127
12.2 Restrict Web Features .....................................................................................................			127
12.3 Days and Times ...............................................................................................................			127
12.4 Filter Screen ....................................................................................................................			127
12.5 Schedule ..........................................................................................................................			129
14		ZyXEL NBG-334SH User’s Guide