ZyXEL Communications P-660HW-T v2 - Manual (Page 14)

P-660HW-T v2 User’s Guide
14 Table of Contents
7.1.3 DNS Server Address ..............................................................................112
7.1.4 DNS Server Address Assignment ...........................................................113
7.2 LAN TCP/IP ......................................................................................................113
7.2.1 IP Address and Subnet Mask .................................................................113
7.2.1.1 Private IP Addresses .....................................................................114
7.2.2 RIP Setup ...............................................................................................114
7.2.3 Multicast ..................................................................................................115
7.2.4 Any IP .....................................................................................................115
7.2.4.1 How Any IP Works ........................................................................116
7.3 Configuring LAN IP ..........................................................................................117
7.3.1 Configuring Advanced LAN Setup ..........................................................117
7.4 DHCP Setup .....................................................................................................119
7.5 LAN Client List .................................................................................................120
7.6 LAN IP Alias .....................................................................................................121
Chapter 8
Network Address Translation (NAT) Screens .................................................... 125
8.1 NAT Overview .................................................................................................125
8.1.1 NAT Definitions .......................................................................................125
8.1.2 What NAT Does ......................................................................................126
8.1.3 How NAT Works .....................................................................................126
8.1.4 NAT Application ......................................................................................127
8.1.5 NAT Mapping Types ...............................................................................127
8.2 SUA (Single User Account) Versus NAT ..........................................................128
8.3 NAT General Setup .........................................................................................128
8.4 Port Forwarding ................................................................................................129
8.4.1 Default Server IP Address ......................................................................130
8.4.2 Port Forwarding: Services and Port Numbers ........................................130
8.4.3 Configuring Servers Behind Port Forwarding (Example) ........................131
8.5 Configuring Port Forwarding ...........................................................................131
8.5.1 Port Forwarding Rule Edit ......................................................................132
8.6 Address Mapping ............................................................................................133
8.6.1 Address Mapping Rule Edit ...................................................................135
Chapter 9
Firewalls................................................................................................................ 137
9.1 Firewall Overview ............................................................................................137
9.2 Types of Firewalls ............................................................................................137
9.2.1 Packet Filtering Firewalls ........................................................................137
9.2.2 Application-level Firewalls ......................................................................138
9.2.3 Stateful Inspection Firewalls ...................................................................138
9.3 Introduction to ZyXEL’s Firewall .......................................................................138
9.3.1 Denial of Service Attacks ........................................................................139