ZyXEL Communications 2602HW Series Chapter, Chapter, Chapter, Introduction to VoIP

Prestige 2602HW Series User’s Guide

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

12 Table of Contents