ZyXEL Communications ADSL 2+ Gateway P-660HW-T1 - Manual (Page 12)

P-660H/HW/W-T Series User’ Guide
Table of Contents 12
5.8 Configuring Local User Authentication ..............................................................85
5.9 Configuring RADIUS .........................................................................................87
Chapter 6
WAN Setup.............................................................................................................. 90
6.1 WAN Overview ..................................................................................................90
6.1.1 Encapsulation ...........................................................................................90
6.1.1.1 ENET ENCAP .................................................................................90
6.1.1.2 PPP over Ethernet ..........................................................................90
6.1.1.3 PPPoA .............................................................................................90
6.1.1.4 RFC 1483 ........................................................................................91
6.1.2 Multiplexing ...............................................................................................91
6.1.2.1 VC-based Multiplexing ....................................................................91
6.1.2.2 LLC-based Multiplexing ...................................................................91
6.1.3 VPI and VCI ..............................................................................................91
6.1.4 IP Address Assignment ............................................................................91
6.1.4.1 IP Assignment with PPPoA or PPPoE Encapsulation .....................91
6.1.4.2 IP Assignment with RFC 1483 Encapsulation .................................92
6.1.4.3 IP Assignment with ENET ENCAP Encapsulation ..........................92
6.1.5 Nailed-Up Connection (PPP) ....................................................................92
6.1.6 NAT ...........................................................................................................92
6.2 Metric ................................................................................................................92
6.3 PPPoE Encapsulation ........................................................................................93
6.4 Traffic Shaping ...................................................................................................93
6.5 Zero Configuration Internet Access ....................................................................94
6.6 The Main WAN Screen ......................................................................................95
6.7 Configuring WAN Setup ....................................................................................95
6.8 Traffic Redirect ..................................................................................................98
6.9 Configuring WAN Backup ..................................................................................99
Chapter 7
Network Address Translation (NAT) Screens .................................................... 102
7.1 NAT Overview .................................................................................................102
7.1.1 NAT Definitions .......................................................................................102
7.1.2 What NAT Does ......................................................................................103
7.1.3 How NAT Works .....................................................................................103
7.1.4 NAT Application ......................................................................................104
7.1.5 NAT Mapping Types ...............................................................................105
7.2 SUA (Single User Account) Versus NAT ..........................................................106
7.3 SUA Server ......................................................................................................106
7.3.1 Default Server IP Address ......................................................................106
7.3.2 Port Forwarding: Services and Port Numbers ........................................106
7.3.3 Configuring Servers Behind SUA (Example) ..........................................107