Zyxel P-793H v2 User Manual [ru]

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P-793H v2

G.SHDSL.bis Bonded Broadband Gateway

Default Login Details

IP Address	http://192.168.1.1
Admin	1234
Password
User	user
Password

Firmware Version 3.70

Edition 1, 03/2010

www.zyxel.com

ZyXEL Communications Corporation

About This User's Guide

Intended Audience

This manual is intended for people who want to configure the P-793H v2 using the web configurator.

Tips for Reading User’s Guides On-Screen

When reading a ZyXEL User’s Guide On-Screen, keep the following in mind:

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•Embedded hyperlinks are actually cross-references to related text. Click them to jump to the corresponding section of the User’s Guide PDF.

Document Conventions

Warnings and Notes

These are how warnings and notes are shown in this User’s Guide.

Warnings tell you about things that could harm you or your device.

Note: Notes tell you other important information (for example, other things you may need to configure or helpful tips) or recommendations.

Syntax Conventions

•The P-793H v2 may be referred to as the “device”, the “system” or the “product” in this User’s Guide.

•Product labels, screen names, field labels and field choices are all in bold font.

•A key stroke is denoted by square brackets and uppercase text, for example, [ENTER] means the “enter” or “return” key on your keyboard.

•“Enter” means for you to type one or more characters and then press the [ENTER] key. “Select” or “choose” means for you to use one of the predefined choices.

•A right angle bracket (>) within a screen name denotes a mouse click. For example, Maintenance > Log > Log Setting means you first click Maintenance in the navigation panel, then the Log sub menu and finally the Log Setting tab to get to that screen.

•Units of measurement may denote the “metric” value or the “scientific” value. For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may denote “1000000” or “1048576” and so on.

•“e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.

6
6	P-793H v2 User’s Guide

Document Conventions

Icons Used in Figures

Figures in this User’s Guide may use the following generic icons. The P-793H v2 icon is not an exact representation of your device.

P-793H v2	Computer	Notebook computer

Server	Firewall	Telephone

Switch	Router

	7
P-793H v2 User’s Guide	7

Safety Warnings

•Do NOT use this product near water, for example, in a wet basement or near a swimming pool.

•Do NOT expose your device to dampness, dust or corrosive liquids.

•Do NOT store things on the device.

•Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning.

•Connect ONLY suitable accessories to the device.

•Do NOT open the device or unit. Opening or removing covers can expose you to dangerous high voltage points or other risks. ONLY qualified service personnel should service or disassemble this device. Please contact your vendor for further information.

•Make sure to connect the cables to the correct ports.

•Place connecting cables carefully so that no one will step on them or stumble over them.

•Always disconnect all cables from this device before servicing or disassembling.

•Use ONLY an appropriate power adaptor or cord for your device.

•Connect the power adaptor or cord to the right supply voltage (for example, 110V AC in North America or 230V AC in Europe).

•Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone can walk on the power adaptor or cord.

•Do NOT use the device if the power adaptor or cord is damaged as it might cause electrocution.

•If the power adaptor or cord is damaged, remove it from the device and the power source.

•Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a new one.

•Do not use the device outside, and make sure all the connections are indoors. There is a remote risk of electric shock from lightning.

•Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your device.

•Use only No. 26 AWG (American Wire Gauge) or larger telecommunication line cord.

Your product is marked with this symbol, which is known as the WEEE mark. WEEE stands for Waste Electronics and Electrical Equipment. It means that used electrical and electronic products should not be mixed with general waste. Used electrical and electronic equipment should be treated separately.

8
8	P-793H v2 User’s Guide

Contents Overview

User’s Guide ...........................................................................................................................	35
Getting To Know Your P-793H v2 ..............................................................................................	37
Introducing the Web Configurator ..............................................................................................	43
Status Screens ..........................................................................................................................	51
Internet Setup Wizard................................................................................................................	57
Tutorials .....................................................................................................................................	67
Technical Reference ..............................................................................................................	73
WAN Setup ................................................................................................................................	75
LAN Setup ...............................................................................................................................	101
Network Address Translation (NAT) .........................................................................................	117
Firewalls ..................................................................................................................................	133
Content Filtering ......................................................................................................................	155
VPN .........................................................................................................................................	161
Certificates ...............................................................................................................................	193
Static Route .............................................................................................................................	203
802.1Q/1P ...............................................................................................................................	207
Quality of Service (QoS) ..........................................................................................................	217
Dynamic DNS Setup ................................................................................................................	235
Remote Management ..............................................................................................................	239
Universal Plug-and-Play (UPnP) .............................................................................................	251
System Settings .......................................................................................................................	263
Logs .........................................................................................................................................	269
Tools ........................................................................................................................................	283
Diagnostic ................................................................................................................................	297
Introducing the SMT ................................................................................................................	301
General Setup .........................................................................................................................	307
WAN Setup ...............................................................................................................................	311
LAN Setup ...............................................................................................................................	317
Internet Access Setup .............................................................................................................	321
Remote Node Setup ................................................................................................................	325
Static Route Setup ...................................................................................................................	335
NAT Setup ...............................................................................................................................	339
.................................................................................................................................................	353
Firewall Setup ..........................................................................................................................	355
Filter Configuration ..................................................................................................................	357
System Password ....................................................................................................................	373
System Information & Diagnosis .............................................................................................	375

P-793H v2 User’s Guide

Contents Overview
Firmware and Configuration File Maintenance ........................................................................	387
Menus 24.8 to 24.11 ................................................................................................................	403
Schedule Setup ........................................................................................................................	411
Troubleshooting .......................................................................................................................	415

P-793H v2 User’s Guide

Table of Contents

About This User's Guide ..........................................................................................................		3
Document Conventions............................................................................................................		6
Safety Warnings........................................................................................................................		8
Contents Overview ...................................................................................................................		9
Table of Contents....................................................................................................................		11
List of Figures .........................................................................................................................		23
List of Tables...........................................................................................................................		31
Part I: User’s Guide................................................................................		35
Chapter 1
Getting To Know Your P-793H v2 ..........................................................................................		37
1.1	Overview ..............................................................................................................................	37
	1.1.1 High-speed Internet Access with G.SHDSL ...............................................................	37
	1.1.2 High-speed Point-to-point Connections .....................................................................	38
	1.1.3 High-speed Point-to-2points Connections ..................................................................	38
1.2	Ways to Manage the P-793H v2 ..........................................................................................	39
1.3	Good Habits for Managing the P-793H v2 ...........................................................................	40
1.4	LEDs ....................................................................................................................................	40
1.5	The RESET Button ..............................................................................................................	41
	1.5.1 Using the RESET Button ............................................................................................	41
Chapter 2
Introducing the Web Configurator ........................................................................................		43
2.1	Web Configurator Overview .................................................................................................	43
2.2	Accessing the Web Configurator .........................................................................................	43
2.3	Web Configurator Main Screen ...........................................................................................	45
	2.3.1 Title Bar ......................................................................................................................	46
	2.3.2 Navigation Panel ........................................................................................................	46
	2.3.3 Main Window ..............................................................................................................	49
	2.3.4 Status Bar ...................................................................................................................	49
Chapter 3
Status Screens ........................................................................................................................		51

P-793H v2 User’s Guide

Table of Contents
3.1	Overview ..............................................................................................................................	51
3.2	The Status Screen ...............................................................................................................	51
3.3	Client List .............................................................................................................................	54
3.4	Status: VPN Status ..............................................................................................................	54
3.5	Any IP Table .......................................................................................................................	54
3.6	Packet Statistics ..................................................................................................................	55
Chapter 4
Internet Setup Wizard .............................................................................................................		57
4.1	Overview ..............................................................................................................................	57
4.2	Internet Access Wizard Setup .............................................................................................	57
	4.2.1 Manual Configuration .................................................................................................	60
Chapter 5
Tutorials ...................................................................................................................................		67
5.1	Overview ..............................................................................................................................	67
5.2	Configuring Point-to-point Connection .................................................................................	67
	5.2.1 Set Up the Server .......................................................................................................	68
	5.2.2 Set Up the Client ........................................................................................................	69
	5.2.3 Connect the P-793H v2s ............................................................................................	69
5.3	Configuring a Point-to-2points Connection ..........................................................................	70
	5.3.1 Set up the Server .......................................................................................................	70
	5.3.2 Set up the Clients .......................................................................................................	71
	5.3.3 Connect the P-793H v2s ............................................................................................	72
Part II: Technical Reference ..................................................................		73
Chapter 6
WAN Setup...............................................................................................................................		75
6.1	Overview ..............................................................................................................................	75
	6.1.1 What You Can Do in the WAN Screens .....................................................................	75
	6.1.2 What You Need to Know About WAN ........................................................................	76
	6.1.3 Before You Begin .......................................................................................................	77
6.2	The Internet Access Setup Screen ......................................................................................	78
	6.2.1 2Wire-2Line Service Mode .........................................................................................	82
	6.2.2 Advanced Internet Access Setup ...............................................................................	83
6.3	The More Connections Screen ............................................................................................	86
	6.3.1 More Connections Edit ...............................................................................................	87
	6.3.2 Configuring More Connections Advanced Setup .......................................................	90
6.4	The WAN Backup Setup Screen ........................................................................................	92
6.5	WAN Technical Reference ...................................................................................................	93

P-793H v2 User’s Guide

		Table of Contents
	6.5.1 Encapsulation .............................................................................................................	93
	6.5.2 Multiplexing ................................................................................................................	95
	6.5.3 VPI and VCI ...............................................................................................................	95
	6.5.4 IP Address Assignment ..............................................................................................	95
	6.5.5 Nailed-Up Connection (PPP) .....................................................................................	96
	6.5.6 NAT ............................................................................................................................	96
6.6	Metric ...................................................................................................................................	96
6.7	Traffic Redirect ....................................................................................................................	97
6.8	Traffic Shaping .....................................................................................................................	98
	6.8.1 ATM Traffic Classes ...................................................................................................	99
Chapter 7
LAN Setup..............................................................................................................................		101
7.1	Overview ............................................................................................................................	101
	7.1.1 What You Can Do in the LAN Screens .....................................................................	101
	7.1.2 What You Need To Know About LAN .......................................................................	102
	7.1.3 Before You Begin .....................................................................................................	103
7.2	The IP Screen ....................................................................................................................	103
	7.2.1 The Advanced LAN IP Setup Screen .......................................................................	104
7.3	The DHCP Setup Screen ..................................................................................................	106
7.4	The Client List Screen .......................................................................................................	108
7.5	The IP Alias Screen ...........................................................................................................	109
	7.5.1 Configuring the LAN IP Alias Screen ........................................................................	110
7.6	LAN Technical Reference ...................................................................................................	111
	7.6.1 LANs, WANs and the ZyXEL Device .........................................................................	111
	7.6.2 DHCP Setup ..............................................................................................................	112
	7.6.3 DNS Server Addresses .............................................................................................	112
	7.6.4 LAN TCP/IP ...............................................................................................................	113
	7.6.5 RIP Setup ..................................................................................................................	114
	7.6.6 Multicast ....................................................................................................................	114
Chapter 8
Network Address Translation (NAT)....................................................................................		117
8.1	Overview .............................................................................................................................	117
	8.1.1 What You Can Do in the NAT Screens ......................................................................	117
	8.1.2 What You Need To Know About NAT ........................................................................	117
8.2	The NAT General Setup Screen .........................................................................................	119
8.3	The Port Forwarding Screen .............................................................................................	120
	8.3.1 Configuring the Port Forwarding Screen ..................................................................	121
	8.3.2 The Port Forwarding Rule Edit Screen ....................................................................	122
8.4	The Address Mapping Screen ...........................................................................................	123
	8.4.1 The Address Mapping Rule Edit Screen ..................................................................	125
8.5	The ALG Screen ................................................................................................................	127

P-793H v2 User’s Guide

Table of Contents
8.6 NAT Technical Reference ..................................................................................................	127
8.6.1 NAT Definitions ........................................................................................................	127
8.6.2 What NAT Does .......................................................................................................	128
8.6.3 How NAT Works .......................................................................................................	129
8.6.4 NAT Application ........................................................................................................	130
8.6.5 NAT Mapping Types .................................................................................................	130
Chapter 9
Firewalls.................................................................................................................................	133
9.1 Overview ............................................................................................................................	133
9.1.1 What You Can Do in the Firewall Screens ...............................................................	133
9.1.2 What You Need to Know About Firewall ..................................................................	134
9.1.3 Firewall Rule Setup Example ...................................................................................	135
9.2 The Firewall General Screen .............................................................................................	138
9.3 The Firewall Rule Screen ..................................................................................................	140
9.3.1 Configuring Firewall Rules ......................................................................................	142
9.3.2 Customized Services ..............................................................................................	144
9.3.3 Configuring a Customized Service .........................................................................	145
9.4 The Firewall Threshold Screen ..........................................................................................	145
9.4.1 Threshold Values .....................................................................................................	146
9.4.2 Configuring Firewall Thresholds ...............................................................................	147
9.5 Firewall Technical Reference .............................................................................................	149
9.5.1 Firewall Rules Overview ...........................................................................................	149
9.5.2 Guidelines For Enhancing Security With Your Firewall ............................................	150
9.5.3 Security Considerations ...........................................................................................	151
9.5.4 Triangle Route ..........................................................................................................	151
Chapter 10
Content Filtering ...................................................................................................................	155
10.1 Overview .........................................................................................................................	155
10.1.1 What You Can Do in the Content Filter Screens ....................................................	155
10.1.2 What You Need to Know About Content Filtering ..................................................	155
10.1.3 Before You Begin ...................................................................................................	155
10.1.4 Content Filtering Example ......................................................................................	156
10.2 The Keyword Screen ......................................................................................................	158
10.3 The Schedule Screen .....................................................................................................	159
10.4 The Trusted Screen ........................................................................................................	160
Chapter 11
VPN.........................................................................................................................................	161

11.1 Overview ..........................................................................................................................	161
11.1.1 What You Can Do in the VPN Screens ..................................................................	161
11.1.2 What You Need to Know About IPSec VPN ...........................................................	162
	P-793H v2 User’s Guide

	Table of Contents
11.1.3 Before You Begin ....................................................................................................	163
11.2 VPN Setup Screen ..........................................................................................................	163
11.3 The VPN Edit Screen ......................................................................................................	166
11.4 Configuring Advanced IKE Settings ................................................................................	171
11.5 Manual Key Setup ............................................................................................................	173
11.5.1 Security Parameter Index (SPI) .............................................................................	174
11.6 Configuring Manual Key ..................................................................................................	174
11.7 Viewing SA Monitor .........................................................................................................	177
11.8 Configuring VPN Global Setting ......................................................................................	179
11.9 IPSec VPN Technical Reference .....................................................................................	179
11.9.1 IPSec Architecture ..................................................................................................	180
11.9.2 IPSec and NAT .......................................................................................................	180
11.9.3 VPN, NAT, and NAT Traversal ................................................................................	181
11.9.4 Encapsulation .........................................................................................................	183
11.9.5 IKE Phases ............................................................................................................	184
11.9.6 Negotiation Mode ...................................................................................................	185
11.9.7 Keep Alive ..............................................................................................................	185
11.9.8 Remote DNS Server ...............................................................................................	185
11.9.9 ID Type and Content ..............................................................................................	186
11.9.10 Pre-Shared Key ....................................................................................................	188
11.9.11 Diffie-Hellman (DH) Key Groups ...........................................................................	188
11.9.12 Telecommuter VPN/IPSec Examples ...................................................................	188
Chapter 12
Certificates ............................................................................................................................	193
12.1 Overview .........................................................................................................................	193
12.1.1 What You Need to Know About Certificates ...........................................................	193
12.1.2 Verifying a Certificate .............................................................................................	194
12.2 The Trusted CAs Screen .................................................................................................	195
12.2.1 Trusted CA Import .................................................................................................	197
12.2.2 Trusted CA Details .................................................................................................	198
12.3 Certificates Technical Reference .....................................................................................	200
12.3.1 Certificates Overview .............................................................................................	200
12.3.2 Private-Public Certificates ......................................................................................	200
Chapter 13
Static Route ...........................................................................................................................	203
13.1 Overview .........................................................................................................................	203
13.2 The Static Route Screen ..................................................................................................	204
13.2.1 Static Route Edit ...................................................................................................	205
Chapter 14
802.1Q/1P...............................................................................................................................	207

P-793H v2 User’s Guide

Table of Contents
14.1	Overview ..........................................................................................................................	207
14.1.1 What You Can Do in the 802.1Q/1P Screens ........................................................		207
14.1.2 What You Need to Know About 802.1Q/1P ...........................................................		207
14.1.3 802.1Q/1P Example ...............................................................................................		209
14.2	The 802.1Q/1P Group Setting Screen .............................................................................	213
14.2.1 Editing 802.1Q/1P Group Setting ...........................................................................		214
14.3	The 802.1Q/1P Port Setting Screen ................................................................................	215
Chapter 15
Quality of Service (QoS).......................................................................................................		217
15.1	Overview ..........................................................................................................................	217
15.2	QoS Overview .................................................................................................................	217
15.2.1 What You Can Do in the QoS Screens ..................................................................		218
15.2.2 What You Need to Know About QoS .....................................................................		218
15.2.3 QoS Class Setup Example .....................................................................................		219
15.3	The QoS General Screen ...............................................................................................	223
15.4	The Class Setup Screen .................................................................................................	224
15.4.1 The Class Configuration Screen ...........................................................................		226
15.5	The QoS Monitor Screen ................................................................................................	230
15.6	QoS Technical Reference ................................................................................................	231
15.6.1 IEEE 802.1Q Tag ...................................................................................................		231
15.6.2 IP Precedence ........................................................................................................		231
15.6.3 DiffServ .................................................................................................................		232
15.6.4 Automatic Priority Queue Assignment ...................................................................		232
Chapter 16
Dynamic DNS Setup .............................................................................................................		235
16.1	Overview ..........................................................................................................................	235
16.1.1 What You Need To Know About DDNS ..................................................................		235
16.2 The Dynamic DNS Screen ..............................................................................................		236
Chapter 17
Remote Management............................................................................................................		239
17.1	Overview ..........................................................................................................................	239
17.1.1 What You Can Do in the Remote Management Screens .......................................		240
17.1.2 What You Need to Know About Remote Management ..........................................		240
17.2 The WWW Screen ...........................................................................................................		241
17.2.1 Configuring the WWW Screen ...............................................................................		241
17.3	The Telnet Screen ...........................................................................................................	242
17.4	The FTP Screen ..............................................................................................................	243
17.5 The SNMP Screen ...........................................................................................................		244
17.5.1 Supported MIBs .....................................................................................................		246
17.5.2 SNMP Traps ...........................................................................................................		246

P-793H v2 User’s Guide

		Table of Contents
17.5.3 Configuring SNMP .................................................................................................		247
17.6 The DNS Screen ............................................................................................................		248
17.7	The ICMP Screen ............................................................................................................	249
Chapter 18
Universal Plug-and-Play (UPnP)..........................................................................................		251
18.1	Overview ..........................................................................................................................	251
18.1.1 What You Can Do in the UPnP Screen ..................................................................		251
18.1.2 What You Need to Know About UPnP ...................................................................		251
18.2 The UPnP Screen ............................................................................................................		253
18.3	Installing UPnP in Windows Example ..............................................................................	253
18.4 Using UPnP in Windows XP Example .............................................................................		257
Chapter 19
System Settings....................................................................................................................		263
19.1	Overview ..........................................................................................................................	263
19.1.1 What You Can Do in the System Settings Screens ................................................		263
19.1.2 What You Need to Know About System Settings ...................................................		263
19.2	The General Screen ........................................................................................................	264
19.3	The Time Setting Screen ................................................................................................	266
Chapter 20
Logs .......................................................................................................................................		269
20.1	Overview ..........................................................................................................................	269
20.1.1 What You Can Do in the Log Screens ....................................................................		269
20.1.2 What You Need To Know About Logs ....................................................................		269
20.2	The View Log Screen ......................................................................................................	270
20.3	The Log Settings Screen .................................................................................................	271
20.4	SMTP Error Messages ....................................................................................................	273
20.4.1 Example E-mail Log ...............................................................................................		273
20.5	Log Descriptions ..............................................................................................................	274
Chapter 21
Tools.......................................................................................................................................		283
21.1	Overview ..........................................................................................................................	283
21.1.1 What You Can Do in the Tool Screens ...................................................................		283
21.1.2 What You Need To Know About Tools ....................................................................		284
21.1.3 Before You Begin ...................................................................................................		285
21.1.4 Tool Examples ........................................................................................................		285
21.2	The Firmware Screen ......................................................................................................	291
21.3	The Configuration Screen ................................................................................................	293
21.4	The Restart Screen .........................................................................................................	295

P-793H v2 User’s Guide

Table of Contents
Chapter 22
Diagnostic	..............................................................................................................................	297
22.1	Overview ..........................................................................................................................	297
22.1.1 What You Can Do in the Diagnostic Screens .........................................................		297
22.2	The General Diagnostic Screen ......................................................................................	297
22.3 ....................................................................................	The DSL Line Diagnostic Screen	298
Chapter 23
Introducing .............................................................................................................the SMT		301
23.1 ..........................................................................................................	Accessing the SMT	301
23.2 .............................................................................................................SMT Menu Items		302
23.3 ..........................................................................................	Navigating the SMT Interface	305
Chapter 24
General Setup........................................................................................................................		307
24.1 ..............................................................................................	Configuring General Setup	307
24.1.1 .....................................................................................Configuring Dynamic DNS		308
Chapter 25
WAN Setup.............................................................................................................................		311
25.1 .......................................................................................................................WAN Setup		311
25.1.1 .......................................................................................2wire-2line Service Mode		313
25.2 .............................................................................................	Configuring Traffic Redirect	315
Chapter 26
LAN Setup..............................................................................................................................		317
26.1 ..............................................................................................	Accessing the LAN Menus	317
26.2 .......................................................................................................	LAN Port Filter Setup	317
26.3 ......................................................................................TCP/IP and DHCP Setup Menu		318
26.4 ....................................................................................................................	LAN IP Alias	320
Chapter 27
Internet Access ..........................................................................................................Setup		321
27.1 .....................................................................................................	Internet Access Setup	321
Chapter 28
Remote Node ..............................................................................................................Setup		325
28.1 ................................................................................	Introduction to Remote Node Setup	325
28.2 ........................................................................................................	Remote Node Setup	325
28.3 .......................................................................................................	Remote Node Profile	326
28.4 .............................................................................	Remote Node Network Layer Options	328
28.5 .........................................................................................................	Remote Node Filter	330
28.6 ...................................................................................	Remote Node ATM Layer Options	332

P-793H v2 User’s Guide

		Table of Contents
28.7	Advance Setup Options ...................................................................................................	333
Chapter 29
Static Route Setup ................................................................................................................		335
29.1	IP Static Route Setup ......................................................................................................	335
29.2	Bridge Static Route Setup ...............................................................................................	337
Chapter 30
NAT Setup	..............................................................................................................................	339
30.1	Using NAT ........................................................................................................................	339
30.1.1 SUA (Single User Account) Versus NAT ................................................................		339
30.1.2 Applying NAT .........................................................................................................		340
30.2 .......................................................................................................................	NAT Setup	341
30.2.1 ...........................................................................................Address Mapping Sets		342
30.3 ....................................................................................	Configuring a Server behind NAT	345
30.4 ...................................................................................................	General NAT Examples	346
30.4.1 ..............................................................................................Internet Access Only		347
30.4.2 .................................................Example 2: Internet Access with a Default Server		348
30.4.3 ..............................Example 3: Multiple Public IP Addresses With Inside Servers		348
30.4.4 .................................................Example 4: NAT Unfriendly Application Programs		352
................................................................................................................................................		353
Chapter 31
Firewall Setup........................................................................................................................		355
31.1 .........................................................................................Using P-793H v2 SMT Menus		355
31.1.1 ............................................................................................Activating the Firewall		355
Chapter 32
Filter Configuration...............................................................................................................		357
32.1 .......................................................................................................	Introduction to Filters	357
32.1.1 .....................................................................The Filter Structure of the P-793H v2		358
32.2 ....................................................................................................	Configuring a Filter Set	360
32.2.1 ........................................................................................Configuring a Filter Rule		362
32.2.2 ............................................................................Configuring a TCP/IP Filter Rule		362
32.2.3 ...........................................................................Configuring a Generic Filter Rule		366
32.3 ..................................................................................................................	Example Filter	367
32.4 .......................................................................................................	Filter Types and NAT	369
32.5 .....................................................................................................	Firewall Versus Filters	370
32.6 ...............................................................................................................	Applying a Filter	370
32.6.1 ...............................................................................................Applying LAN Filters		370
32.6.2 ...............................................................................Applying Remote Node Filters		371
Chapter 33
System Password .................................................................................................................		373

P-793H v2 User’s Guide

Table of Contents
Chapter 34
System Information & Diagnosis.........................................................................................		375
34.1	Introduction to System Status ..........................................................................................	375
34.2	System Status ..................................................................................................................	375
34.3	System Information and Console Port Speed ..................................................................	377
34.3.1 System Information ................................................................................................		378
34.3.2 Console Port Speed ...............................................................................................		379
34.4	Log and Trace ..................................................................................................................	379
34.4.1 Viewing Error Log ...................................................................................................		379
34.4.2 Syslog Logging .......................................................................................................		381
34.5	Diagnostic ........................................................................................................................	384
Chapter 35
Firmware and Configuration File Maintenance ..................................................................		387
35.1	Introduction ......................................................................................................................	387
35.2	Filename Conventions .....................................................................................................	387
35.3	Backup Configuration ......................................................................................................	388
35.3.1 Backup Configuration .............................................................................................		389
35.3.2 Using the FTP Command from the Command Line ...............................................		389
35.3.3 Example of FTP Commands from the Command Line ..........................................		390
35.3.4 GUI-based FTP Clients ..........................................................................................		390
35.3.5 File Maintenance Over WAN ..................................................................................		390
35.3.6 Backup Configuration Using TFTP .........................................................................		391
35.3.7 TFTP Command Example ......................................................................................		391
35.3.8 GUI-based TFTP Clients ........................................................................................		392
35.3.9 Backup Via Console Port .......................................................................................		392
35.4	Restore Configuration ......................................................................................................	393
35.4.1 Restore Using FTP .................................................................................................		394
35.4.2 Restore Using FTP Session Example ....................................................................		395
35.4.3 Restore Via Console Port .......................................................................................		395
35.5	Uploading Firmware and Configuration Files ..................................................................	396
35.5.1 Firmware File Upload .............................................................................................		396
35.5.2 Configuration File Upload .......................................................................................		397
35.5.3 FTP File Upload Command from the DOS Prompt Example .................................		398
35.5.4 FTP Session Example of Firmware File Upload ....................................................		398
35.5.5 TFTP File Upload ...................................................................................................		399
35.5.6 TFTP Upload Command Example .........................................................................		399
35.5.7 Uploading Via Console Port ...................................................................................		400
35.5.8 Uploading Firmware File Via Console Port ............................................................		400
35.5.9 Example Xmodem Firmware Upload Using HyperTerminal ...................................		401
35.5.10 Uploading Configuration File Via Console Port ....................................................		401
35.5.11 Example Xmodem Configuration Upload Using HyperTerminal ...........................		402

P-793H v2 User’s Guide

					Table of Contents
Chapter 36
Menus 24.8 to 24.11 ..............................................................................................................					403
36.1			Command Interpreter Mode ............................................................................................		403
		36.1.1 Command Syntax ...................................................................................................			403
		36.1.2 Command Usage ...................................................................................................			404
36.2			Call Control Support ........................................................................................................		404
		36.2.1 Budget Management ..............................................................................................			405
36.3			Time and Date Setting .....................................................................................................		406
	36.4 Remote Management ......................................................................................................				409
		36.4.1 Remote Management Limitations ..........................................................................			409
Chapter 37
Schedule Setup.....................................................................................................................					411
37.1			Schedule Set Overview ....................................................................................................		411
37.2			Schedule Setup ................................................................................................................		411
37.3			Schedule Set Setup .........................................................................................................		412
Chapter 38
Troubleshooting....................................................................................................................					415
38.1			Power, Hardware Connections, and LEDs ......................................................................		415
38.2			P-793H v2 Access and Login ..........................................................................................		416
38.3			Internet Access ................................................................................................................		418
38.4			Network Connections ......................................................................................................		419
Appendix		A		Product Specifications.......................................................................................	421
Appendix		B		Wall-mounting Instructions................................................................................	427
Appendix		C Setting up Your Computer’s IP Address ...........................................................			429
Appendix		D Pop-up Windows, JavaScripts and Java Permissions......................................			453
Appendix		E IP Addresses and Subnetting ...........................................................................			463
Appendix		F Services ............................................................................................................			473
Appendix		G		Legal Information..............................................................................................	477
Index.......................................................................................................................................					481

P-793H v2 User’s Guide

Table of Contents

P-793H v2 User’s Guide

List of Figures

Figure 1 High-speed Internet Access with Your P-793H v2 ....................................................................	38
Figure 2 Point-to-point Connections with Your P-793H v2 .....................................................................	38
Figure 3 Point-to-2points Connections with Your P-793H v2 ..................................................................	39
Figure 4 LEDs .........................................................................................................................................	40
Figure 5 Login Screen ............................................................................................................................	44
Figure 6 Change Password at Login ......................................................................................................	44
Figure 7 Select a Mode ..........................................................................................................................	45
Figure 8 Main Screen ............................................................................................................................	45
Figure 9 Status Screen ...........................................................................................................................	51
Figure 10 Any IP Table ...........................................................................................................................	54
Figure 11 Packet Statistics .....................................................................................................................	55
Figure 12 Select a Mode ........................................................................................................................	57
Figure 13 Wizard Welcome ....................................................................................................................	58
Figure 14 Auto Detection: No DSL Connection ......................................................................................	58
Figure 15 Auto-Detection: PPPoE ..........................................................................................................	59
Figure 16 Auto Detection: Failed ............................................................................................................	59
Figure 17 Internet Access Wizard Setup: ISP Parameters .....................................................................	60
Figure 18 Internet Connection with PPPoE ............................................................................................	61
Figure 19 Internet Connection with RFC 1483 ......................................................................................	62
Figure 20 Internet Connection with ENET ENCAP .................................................................................	63
Figure 21 Internet Connection with PPPoA ............................................................................................	64
Figure 22 Internet Access Setup Complete ............................................................................................	65
Figure 23 WAN > Internet Access Setup ................................................................................................	68
Figure 24 WAN > Internet Access Setup ...............................................................................................	71
Figure 25 WAN > Internet Connection > Service Type of B ...................................................................	72
Figure 26 WAN > Internet Connection > Service Type of C ...................................................................	72
Figure 27 LAN and WAN ........................................................................................................................	75
Figure 28 Network > WAN >Internet Access Setup ................................................................................	78
Figure 29 2wire-2line Service Mode .......................................................................................................	82
Figure 30 Network > WAN > Internet Access Setup: Advanced Setup ..................................................	83
Figure 31 Network > WAN > More Connections .....................................................................................	86
Figure 32 Network > WAN > More Connections: Edit ............................................................................	87
Figure 33 Network > WAN > More Connections: Edit: Advanced Setup ................................................	90
Figure 34 Network > Internet (WAN) > WAN Backup .............................................................................	92
Figure 35 Traffic Redirect Example ........................................................................................................	97
Figure 36 Traffic Redirect LAN Setup .....................................................................................................	98
Figure 37 Example of Traffic Shaping ....................................................................................................	99
Figure 38 Network > LAN > IP ..............................................................................................................	103

P-793H v2 User’s Guide

List of Figures
Figure 39 Network > LAN > IP: Advanced Setup .................................................................................	104
Figure 40 Network > LAN > DHCP Setup ............................................................................................	106
Figure 41 Network > LAN > Client List ................................................................................................	108
Figure 42 Physical Network & Partitioned Logical Networks ................................................................	109
Figure 43 Network > LAN > IP Alias ......................................................................................................	110
Figure 44 LAN and WAN IP Addresses .................................................................................................	111
Figure 45 Network > NAT > General .....................................................................................................	119
Figure 46 Multiple Servers Behind NAT Example ................................................................................	121
Figure 47 Network > NAT > Port Forwarding .......................................................................................	121
Figure 48 Network > NAT > Port Forwarding: Edit ..............................................................................	122
Figure 49 Network > NAT > Address Mapping .....................................................................................	124
Figure 50 Network > NAT > Address Mapping: Edit ............................................................................	125
Figure 51 Network > NAT > ALG ..........................................................................................................	127
Figure 52 How NAT Works ...................................................................................................................	129
Figure 53 NAT Application With IP Alias ..............................................................................................	130
Figure 54 Default Firewall Action ..........................................................................................................	133
Figure 55 Security > Firewall > General ...............................................................................................	138
Figure 56 Security > Firewall > Rules ..................................................................................................	140
Figure 57 Security > Firewall > Rules: Edit ..........................................................................................	142
Figure 58 Security > Firewall > Rules: Edit: Edit Customized Services ...............................................	144
Figure 59 Security > Firewall > Rules: Edit: Edit Customized Services: Config ...................................	145
Figure 60 Three-Way Handshake .........................................................................................................	146
Figure 61 Security > Firewall > Threshold ............................................................................................	147
Figure 62 Ideal Firewall Setup ..............................................................................................................	151
Figure 63 “Triangle Route” Problem .....................................................................................................	152
Figure 64 IP Alias .................................................................................................................................	153
Figure 65 Security > Content Filtering > Keyword ................................................................................	158
Figure 66 Security > Content Filter > Schedule ....................................................................................	159
Figure 67 Security > Content Filter: Trusted .........................................................................................	160
Figure 68 VPN: Example ......................................................................................................................	161
Figure 69 VPN: IKE SA and IPSec SA ................................................................................................	162
Figure 70 IPSec Summary Fields .........................................................................................................	163
Figure 71 Security > VPN > Setup .......................................................................................................	164
Figure 72 Security > VPN > Setup > Edit .............................................................................................	166
Figure 73 Security > VPN > Setup > Edit > Advanced Setup ..............................................................	171
Figure 74 Security > VPN > Setup > Manual Key ................................................................................	174
Figure 75 Security > VPN > Monitor .....................................................................................................	178
Figure 76 Security > VPN > Global Setting ..........................................................................................	179
Figure 77 IPSec Architecture ................................................................................................................	180
Figure 78 NAT Router Between IPSec Routers ...................................................................................	182
Figure 79 Transport and Tunnel Mode IPSec Encapsulation ...............................................................	183
Figure 80 Two Phases to Set Up the IPSec SA ...................................................................................	184
Figure 81 VPN Host using Intranet DNS Server Example ....................................................................	186

P-793H v2 User’s Guide

	List of Figures
Figure 82 Telecommuters Sharing One VPN Rule Example ................................................................	189
Figure 83 Telecommuters Using Unique VPN Rules Example .............................................................	190
Figure 84 Certificates Example ............................................................................................................	193
Figure 85 Remote Host Certificates .....................................................................................................	194
Figure 86 Certificate Details ................................................................................................................	195
Figure 87 Trusted CAs ..........................................................................................................................	196
Figure 88 Trusted CA Import ................................................................................................................	197
Figure 89 Trusted CA Details ...............................................................................................................	198
Figure 90 Example of Static Routing Topology .....................................................................................	203
Figure 91 Advanced > Static Route ......................................................................................................	204
Figure 92 Advanced > Static Route: Edit ..............................................................................................	205
Figure 93 802.1Q/1P ............................................................................................................................	207
Figure 94 Advanced > 802.1Q/1P > Group Setting ..............................................................................	213
Figure 95 Advanced > 802.1Q/1P > Group Setting > Edit ....................................................................	214
Figure 96 Advanced > 802.1Q/1P > Port Setting .................................................................................	215
Figure 97 QoS Example .......................................................................................................................	220
Figure 98 QoS Class Example: VoIP -1 ...............................................................................................	220
Figure 99 QoS Class Example: VoIP -2 ...............................................................................................	221
Figure 100 QoS Class Example: Boss -1 .............................................................................................	221
Figure 101 QoS Class Example: Boss -2 .............................................................................................	222
Figure 102 Advanced > QoS > General ...............................................................................................	223
Figure 103 Advanced > QoS > Class Setup .........................................................................................	224
Figure 104 Advanced > QoS > Class Setup: Edit ................................................................................	226
Figure 105 Advanced > QoS > Monitor ...............................................................................................	230
Figure 106 Advanced > Dynamic DNS .................................................................................................	236
Figure 107 Remote Management From the WAN ................................................................................	239
Figure 108 Advanced > Remote Management > WWW ......................................................................	241
Figure 109 Advanced > Remote Management > Telnet .......................................................................	242
Figure 110 Advanced > Remote Management > FTP ..........................................................................	243
Figure 111 SNMP Management Model .................................................................................................	245
Figure 112 Advanced > Remote Management > SNMP ......................................................................	247
Figure 113 Advanced > Remote Management > DNS .........................................................................	248
Figure 114 Advanced > Remote Management > ICMP ........................................................................	249
Figure 115 Advanced > UPnP > General .............................................................................................	253
Figure 116 Maintenance > System > General ......................................................................................	264
Figure 117 Maintenance > System > Time Setting ...............................................................................	266
Figure 118 Maintenance > Logs > View Log ........................................................................................	270
Figure 119 Maintenance > Logs > Log Settings ...................................................................................	271
Figure 120 E-mail Log Example ...........................................................................................................	274
Figure 121 Restore Using FTP Session Example ................................................................................	286
Figure 122 FTP Session Example of Firmware File Upload .................................................................	287
Figure 123 FTP Session Example ........................................................................................................	289
Figure 124 Maintenance > Tools > Firmware .......................................................................................	291

P-793H v2 User’s Guide

List of Figures
Figure 125 Firmware Upload In Progress .............................................................................................		292
Figure 126 Network Temporarily Disconnected ....................................................................................		292
Figure 127 Error Message ....................................................................................................................		292
Figure 128 Maintenance > Tools > Configuration .................................................................................		293
Figure 129 Configuration Upload Successful .......................................................................................		294
Figure 130 Network Temporarily Disconnected ....................................................................................		294
Figure 131 Configuration Upload Error .................................................................................................		294
Figure 132 Reset Warning Message ....................................................................................................		295
Figure 133 Reset In Process Message ................................................................................................		295
Figure 134 Maintenance > Tools >Restart ...........................................................................................		295
Figure 135 Maintenance > Diagnostic > General .................................................................................		297
Figure 136 Maintenance > Diagnostic > DSL Line ...............................................................................		298
Figure 137 Login Screen ......................................................................................................................		301
Figure 138 SMT Main Menu .................................................................................................................		302
Figure 139 Menu 1: General Setup ......................................................................................................		307
Figure 140 Menu 1.1: Configure Dynamic DNS ...................................................................................		309
Figure 141 Menu 2: WAN Setup ............................................................................................................		311
Figure 142 Menu 2: 2wire-2line Service Mode .....................................................................................		313
Figure 143 Menu 2.1: Traffic Redirect Setup ........................................................................................		315
Figure 144 Menu 3: LAN Setup ............................................................................................................		317
Figure 145 Menu 3.1: LAN Port Filter Setup ........................................................................................		317
Figure 146 Menu 3.2: TCP/IP and DHCP Ethernet Setup ....................................................................		318
Figure 147 Menu 3.2.1: IP Alias Setup .................................................................................................		320
Figure 148 Menu 4: Internet Access Setup ..........................................................................................		321
Figure 149 Menu 11: Remote Node Setup ...........................................................................................		325
Figure 150 Menu 11.1: Remote Node Profile (nodes 1-7) ....................................................................		326
Figure 151 Menu 11.3: Remote Node Network Layer Options .............................................................		328
Figure 152 Menu 11.5: Remote Node Filter .........................................................................................		331
Figure 153 ...................................................................	Menu 11.6: Remote Node ATM Layer Options 332
Figure 154 Menu 11.8: Advance Setup Options ...................................................................................		333
Figure 155 Menu 12.1: IP Static Route Setup .....................................................................................		335
Figure 156 Menu 12.1.1: Edit IP Static Route ......................................................................................		336
Figure 157 Menu 12.3: Bridge Static Route Setup ...............................................................................		337
Figure 158 Menu 12.3.1: Edit Bridge Static Route ...............................................................................		337
Figure 159 Menu 4: Applying NAT for Internet Access .........................................................................		340
Figure 160 Menu 11.3: Applying NAT to the Remote Node ..................................................................		341
Figure 161 Menu 15: NAT Setup ..........................................................................................................		342
Figure 162 Menu 15.1: Address Mapping Sets ....................................................................................		342
Figure 163 Menu 15.1.1: Address Mapping Rules ...............................................................................		343
Figure 164 Menu 15.1.1.1: Address Mapping Rule ..............................................................................		344
Figure 165 Menu 15.2: NAT Server Sets ..............................................................................................		345
Figure 166 Menu 15.2: NAT Server Setup ...........................................................................................		346
Figure 167 NAT Example 1 ..................................................................................................................		347

P-793H v2 User’s Guide

	List of Figures
Figure 168 Menu 4: Internet Access & NAT Example ..........................................................................	347
Figure 169 NAT Example 2 ..................................................................................................................	348
Figure 170 Menu 15.2: Specifying an Inside Server .............................................................................	348
Figure 171 NAT Example 3 ..................................................................................................................	349
Figure 172 Example 3: Menu 11.3 ........................................................................................................	350
Figure 173 Example 3: Menu 15.1.1.1 .................................................................................................	351
Figure 174 Example 3: Final Menu 15.1.1 ............................................................................................	351
Figure 175 Example 3: Menu 15.2 .......................................................................................................	352
Figure 176 NAT Example 4 ..................................................................................................................	352
Figure 177 Example 4: Menu 15.1.1.1: Address Mapping Rule ...........................................................	353
Figure 178 Menu 21: Filter and Firewall Setup .....................................................................................	355
Figure 179 Menu 21.2: Firewall Setup ..................................................................................................	356
Figure 180 Outgoing Packet Filtering Process .....................................................................................	357
Figure 181 Filter Rule Process .............................................................................................................	359
Figure 182 Menu 21: Filter and Firewall Setup .....................................................................................	360
Figure 183 Menu 21.1: Filter Set Configuration ....................................................................................	360
Figure 184 Menu 21.1.1: Filter Rules Summary ...................................................................................	361
Figure 185 Menu 21.1.1.1: TCP/IP Filter Rule .....................................................................................	363
Figure 186 Executing an IP Filter .........................................................................................................	365
Figure 187 Menu 21.1.1.1: Generic Filter Rule ....................................................................................	366
Figure 188 Telnet Filter Example ..........................................................................................................	367
Figure 189 Example Filter: Menu 21.1.3.1 ...........................................................................................	368
Figure 190 Example Filter Rules Summary: Menu 21.1.3 ....................................................................	369
Figure 191 Protocol and Device Filter Sets ..........................................................................................	370
Figure 192 Filtering LAN Traffic ............................................................................................................	371
Figure 193 Filtering Remote Node Traffic .............................................................................................	371
Figure 194 Menu 23: System Password ...............................................................................................	373
Figure 195 Menu 24: System Maintenance ..........................................................................................	375
Figure 196 Menu 24.1: System Maintenance - Status ..........................................................................	376
Figure 197 Menu 24.2: System Information and Console Port Speed .................................................	378
Figure 198 Menu 24.2.1: System Maintenance - Information ...............................................................	378
Figure 199 Menu 24.2.2: System Maintenance: Change Console Port Speed ....................................	379
Figure 200 Menu 24.3: System Maintenance - Log and Trace .............................................................	380
Figure 201 Examples of Error and Information Messages ...................................................................	380
Figure 202 Menu 24.3.2: System Maintenance - UNIX Syslog ............................................................	381
Figure 203 Menu 24.4: System Maintenance - Diagnostic ...................................................................	385
Figure 204 Menu 24.5: Backup Configuration ......................................................................................	389
Figure 205 FTP Session Example ........................................................................................................	390
Figure 206 System Maintenance: Backup Configuration .....................................................................	392
Figure 207 System Maintenance: Starting Xmodem Download Screen ...............................................	393
Figure 208 Backup Configuration Example ..........................................................................................	393
Figure 209 Successful Backup Confirmation Screen ...........................................................................	393
Figure 210 Menu 24.6: Restore Configuration .....................................................................................	394

P-793H v2 User’s Guide

List of Figures
Figure 211 Restore Using FTP Session Example ................................................................................	395
Figure 212 System Maintenance: Restore Configuration .....................................................................	395
Figure 213 System Maintenance: Starting Xmodem Download Screen ...............................................	395
Figure 214 Restore Configuration Example .........................................................................................	396
Figure 215 Successful Restoration Confirmation Screen .....................................................................	396
Figure 216 Menu 24.7.1: System Maintenance - Upload System Firmware ........................................	397
Figure 217 Menu 24.7.2: System Maintenance - Upload System Configuration File ...........................	397
Figure 218 FTP Session Example of Firmware File Upload .................................................................	398
Figure 219 Menu 24.7.1 As Seen Using the Console Port ...................................................................	400
Figure 220 Example Xmodem Upload ..................................................................................................	401
Figure 221 Menu 24.7.2 As Seen Using the Console Port ..................................................................	401
Figure 222 Example Xmodem Upload ..................................................................................................	402
Figure 223 Command Mode in Menu 24 ..............................................................................................	403
Figure 224 Valid Commands ................................................................................................................	404
Figure 225 Menu 24.9: System Maintenance - Call Control .................................................................	405
Figure 226 Menu 24.9.1 - Budget Management ...................................................................................	405
Figure 227 Menu 24: System Maintenance ..........................................................................................	406
Figure 228 Menu 24.10: System Maintenance - Time and Date Setting ..............................................	407
Figure 229 Menu 24.11 – Remote Management Control .....................................................................	409
Figure 230 Menu 26: Schedule Setup ...................................................................................................	411
Figure 231 Menu 26.1: Schedule Set Setup .........................................................................................	412
Figure 232 Y-Cable Configuration ........................................................................................................	426
Figure 233 Wall-mounting Example ......................................................................................................	427
Figure 234 WIndows 95/98/Me: Network: Configuration ......................................................................	430
Figure 235 Windows 95/98/Me: TCP/IP Properties: IP Address ..........................................................	431
Figure 236 Windows 95/98/Me: TCP/IP Properties: DNS Configuration ..............................................	432
Figure 237 Windows XP: Start Menu ....................................................................................................	433
Figure 238 Windows XP: Control Panel ...............................................................................................	433
Figure 239 Windows XP: Control Panel: Network Connections: Properties .........................................	434
Figure 240 Windows XP: Local Area Connection Properties ...............................................................	434
Figure 241 Windows XP: Internet Protocol (TCP/IP) Properties ..........................................................	435
Figure 242 Windows XP: Advanced TCP/IP Properties .......................................................................	436
Figure 243 Windows XP: Internet Protocol (TCP/IP) Properties ..........................................................	437
Figure 244 Windows Vista: Start Menu .................................................................................................	438
Figure 245 Windows Vista: Control Panel ............................................................................................	438
Figure 246 Windows Vista: Network And Internet ................................................................................	438
Figure 247 Windows Vista: Network and Sharing Center .....................................................................	439
Figure 248 Windows Vista: Network and Sharing Center .....................................................................	439
Figure 249 Windows Vista: Local Area Connection Properties ............................................................	440
Figure 250 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties ...................................	441
Figure 251 Windows Vista: Advanced TCP/IP Properties ....................................................................	442
Figure 252 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties ...................................	443
Figure 253 Macintosh OS 8/9: Apple Menu ..........................................................................................	444

P-793H v2 User’s Guide

	List of Figures
Figure 254 Macintosh OS 8/9: TCP/IP .................................................................................................	445
Figure 255 Macintosh OS X: Apple Menu ............................................................................................	446
Figure 256 Macintosh OS X: Network ..................................................................................................	446
Figure 257 Red Hat 9.0: KDE: Network Configuration: Devices .........................................................	447
Figure 258 Red Hat 9.0: KDE: Ethernet Device: General ..................................................................	448
Figure 259 Red Hat 9.0: KDE: Network Configuration: DNS ...............................................................	448
Figure 260 Red Hat 9.0: KDE: Network Configuration: Activate ........................................................	449
Figure 261 Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0 ...............................................	449
Figure 262 Red Hat 9.0: Static IP Address Setting in ifconfig-eth0 ...................................................	450
Figure 263 Red Hat 9.0: DNS Settings in resolv.conf ........................................................................	450
Figure 264 Red Hat 9.0: Restart Ethernet Card .................................................................................	450
Figure 265 Red Hat 9.0: Checking TCP/IP Properties .......................................................................	451
Figure 266 Pop-up Blocker ...................................................................................................................	453
Figure 267 Internet Options: Privacy ....................................................................................................	454
Figure 268 Internet Options: Privacy ....................................................................................................	455
Figure 269 Pop-up Blocker Settings .....................................................................................................	456
Figure 270 Internet Options: Security ...................................................................................................	457
Figure 271 Security Settings - Java Scripting .......................................................................................	458
Figure 272 Security Settings - Java ......................................................................................................	459
Figure 273 Java (Sun) ..........................................................................................................................	460
Figure 274 Mozilla Firefox: Tools > Options .........................................................................................	460
Figure 275 Mozilla Firefox Content Security .........................................................................................	461
Figure 276 Network Number and Host ID ............................................................................................	464
Figure 277 Subnetting Example: Before Subnetting ............................................................................	467
Figure 278 Subnetting Example: After Subnetting ...............................................................................	467

P-793H v2 User’s Guide

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