ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H - Manual (Page 13)

P-793H User’s Guide
Table of Contents 13
5.5.2 Configuring More Connections Advanced Setup ......................................84
5.6 Traffic Redirect ...................................................................................................85
5.7 Dial Backup Interface .........................................................................................86
5.8 Configuring WAN Backup Setup .......................................................................86
5.8.1 Advanced Backup Setup .........................................................................89
5.8.2 Advanced Modem Settings for Dial Backup ............................................91
Chapter 6
LAN Setup............................................................................................................... 95
6.1 LAN Overview ...................................................................................................95
6.1.1 LANs, WANs and the ZyXEL Device ........................................................95
6.1.2 DHCP Setup .............................................................................................96
6.1.2.1 IP Pool Setup ..................................................................................96
6.1.3 DNS Server Address ................................................................................96
6.1.4 DNS Server Address Assignment .............................................................97
6.2 LAN TCP/IP ........................................................................................................97
6.2.1 IP Address and Subnet Mask ...................................................................97
6.2.1.1 Private IP Addresses .......................................................................98
6.2.2 RIP Setup .................................................................................................98
6.2.3 Multicast ....................................................................................................99
6.3 Configuring LAN IP ............................................................................................99
6.3.1 Configuring Advanced LAN Setup ..........................................................100
6.4 DHCP Setup .....................................................................................................101
6.5 LAN Client List .................................................................................................103
6.6 LAN IP Alias .....................................................................................................104
Chapter 7
Network Address Translation (NAT) Screens .................................................... 107
7.1 NAT Overview .................................................................................................107
7.1.1 NAT Definitions .......................................................................................107
7.1.2 What NAT Does ......................................................................................108
7.1.3 How NAT Works .....................................................................................108
7.1.4 NAT Application ......................................................................................109
7.1.5 NAT Mapping Types ...............................................................................109
7.2 SUA (Single User Account) Versus NAT ..........................................................110
7.3 NAT General Setup ..........................................................................................110
7.4 Port Forwarding ............................................................................................... 111
7.4.1 Default Server IP Address ......................................................................112
7.4.2 Port Forwarding: Services and Port Numbers ........................................112
7.4.3 Configuring Servers Behind Port Forwarding (Example) ........................112
7.5 Configuring Port Forwarding ............................................................................113
7.5.1 Port Forwarding Rule Edit ......................................................................114
7.6 Address Mapping ............................................................................................115