ZyXEL Communications ADSL VoIP IAD with 802.11g Wireless 2602HW Series - Manual (Page 12)

Prestige 2602HW Series User’s Guide
12 Table of Contents
Chapter 7
WAN Setup............................................................................................................ 109
7.1 WAN Overview .................................................................................................109
7.2 Metric ..............................................................................................................109
7.3 PPPoE Encapsulation ......................................................................................110
7.4 Traffic Shaping .................................................................................................110
7.5 Zero Configuration Internet Access .................................................................. 111
7.6 Configuring WAN Setup ................................................................................... 111
7.7 Traffic Redirect .................................................................................................114
7.8 Configuring WAN Backup .................................................................................115
Chapter 8
Network Address Translation (NAT) Screens .................................................... 119
8.1 NAT Overview ..................................................................................................119
8.1.1 NAT Definitions .......................................................................................119
8.1.2 What NAT Does ......................................................................................120
8.1.3 How NAT Works .....................................................................................120
8.1.4 NAT Application ......................................................................................121
8.1.5 NAT Mapping Types ...............................................................................121
8.2 SUA (Single User Account) Versus NAT ..........................................................122
8.3 SUA Server ......................................................................................................123
8.3.1 Default Server IP Address ......................................................................123
8.3.2 Port Forwarding: Services and Port Numbers ........................................123
8.3.3 Configuring Servers Behind SUA (Example) ..........................................124
8.4 Selecting the NAT Mode ..................................................................................124
8.5 Configuring SUA Server ...................................................................................125
8.6 Configuring Address Mapping ..........................................................................127
8.7 Editing an Address Mapping Rule ....................................................................128
Chapter 9
Introduction to VoIP ............................................................................................. 131
9.1 Introduction to VoIP ..........................................................................................131
9.2 SIP ..................................................................................................................131
9.2.1 SIP Identities ...........................................................................................131
9.2.1.1 SIP Number ...................................................................................131
9.2.1.2 SIP Service Domain ......................................................................132
9.2.2 SIP Call Progression ...............................................................................132
9.2.3 SIP Servers .............................................................................................132
9.2.3.1 SIP User Agent Server ..................................................................133
9.2.3.2 SIP Proxy Server ...........................................................................133
9.2.3.3 SIP Redirect Server ......................................................................134
9.2.3.4 SIP Register Server ......................................................................135
9.2.4 RTP .........................................................................................................135