ZyXEL Communications P-660RU-T V2 Part IV: Maintenance and Troubleshooting

Table of Contents

Chapter 12
Network Address Translation (NAT) Screens.......................................................................		91
12.1	NAT Overview ....................................................................................................................	91
12.1.1 NAT Definitions ........................................................................................................		91
12.1.2 What NAT Does .......................................................................................................		92
12.1.3 How NAT Works .......................................................................................................		92
12.1.4 NAT Application ........................................................................................................		93
12.1.5 NAT Mapping Types .................................................................................................		93
12.2	SUA (Single User Account) Versus NAT ...........................................................................	94
12.3	SUA Server ........................................................................................................................	95
12.3.1 Default Server IP Address ........................................................................................		95
12.3.2 Port Forwarding: Services and Port Numbers ..........................................................		95
12.3.3 Configuring Servers Behind SUA (Example) ...........................................................		96
12.4	Selecting the NAT Mode ....................................................................................................	96
12.5	Configuring SUA Server ....................................................................................................	97
12.6	Configuring Address Mapping ...........................................................................................	98
12.7	Editing an Address Mapping Rule .....................................................................................	99

Part IV: Maintenance and Troubleshooting			....................................... 101
Chapter 13
Maintenance ..........................................................................................................................			103
13.1		Maintenance Overview ....................................................................................................	103
13.2		System Status Screen .....................................................................................................	103
	13.2.1 System Statistics ....................................................................................................		105
13.3		DHCP Table Screen ........................................................................................................	106
13.4		Any IP Table Screen ........................................................................................................	107
13.5		Diagnostic Screens ..........................................................................................................	108
	13.5.1 Diagnostic General Screen ....................................................................................		108
	13.5.2 Diagnostic DSL Line Screen ..................................................................................		109
13.6		Firmware Screen ..............................................................................................................	110
13.7		Configuration Screen ........................................................................................................	111
	13.7.1 Backup Configuration ..............................................................................................		112
	13.7.2 Restore Configuration .............................................................................................		112
	13.7.3 Reset to Factory Defaults ........................................................................................		114
Chapter 14
Troubleshooting....................................................................................................................			115
14.1		Power, Hardware Connections, and LEDs .......................................................................	115
14.2		ZyXEL Device Access and Login .....................................................................................	116
14.3		Internet Access .................................................................................................................	117
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			P-660RU-T v2 User’s Guide