Operation Manual

Table of Contents
NBG334S User’s Guide
14
8.2.2 IP Address and Subnet Mask ................................................................................... 104
8.2.3 Multicast ................................................................................................................... 104
8.2.4 Any IP ....................................................................................................................... 104
8.3 LAN IP Screen ................................................................................................................... 106
8.4 LAN IP Alias ..................................................................................................................... 106
8.5 Advanced LAN Screen ...................................................................................................... 107
Chapter 9
DHCP...................................................................................................................................... 109
9.1 DHCP ................................................................................................................................ 109
9.2 DHCP Server General Screen ........................................................................................... 109
9.3 DHCP Server Advanced Screen .....................................................................................110
9.4 Client List Screen ...............................................................................................................111
Chapter 10
Network Address Translation (NAT).................................................................................... 113
10.1 NAT Overview ................................................................................................................113
10.2 Using NAT .........................................................................................................................113
10.2.1 Port Forwarding: Services and Port Numbers .........................................................113
10.2.2 Configuring Servers Behind Port Forwarding Example ...........................................114
10.3 General NAT Screen .........................................................................................................114
10.4 NAT Application Screen ..................................................................................................115
10.4.1 Game List Example .................................................................................................117
10.5 Trigger Port Forwarding ....................................................................................................118
10.5.1 Trigger Port Forwarding Example ...........................................................................118
10.5.2 Two Points To Remember About Trigger Ports .......................................................119
10.6 NAT Advanced Screen .....................................................................................................119
Chapter 11
Dynamic DNS ........................................................................................................................ 123
11.1 Dynamic DNS Introduction .............................................................................................. 123
11.1.1 DynDNS Wildcard .................................................................................................. 123
11.2 Dynamic DNS Screen .................................................................................................... 123
Part III: Security.................................................................................... 125
Chapter 12
Firewall................................................................................................................................... 127
12.1 Introduction to ZyXEL’s Firewall .................................................................................... 127
12.1.1 What is a Firewall? ................................................................................................. 127
12.1.2 Stateful Inspection Firewall .................................................................................... 127