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Chapter 11 Network Address Translation (NAT) and port numbers so incoming reply packets can have their original values restored. The following figure illustrates this. Figure 79 How NAT Works LAN 192.168.1.13 192.168.1.12 SA 192.168.1.10 NAT Table Inside Local IP Address 192.168.1.10 192.168.1.11 192.168.1.12 192.168.1.13 Inside Global IP Address IGA 1 IGA 2 IGA 3 IGA 4 SA IGA1 WAN Inside Local Address (ILA) 192.168.1.11 192.168.1.10 Inside Global Address (IGA) 206 P-2612HNU(L)-FxF User's Guide

Section	Page
P-2612HNU(L)-FxF	1
About This User's Guide	3
Document Conventions	5
Safety Warnings	7
Contents Overview	9
Table of Contents	11
User’s Guide	19
Introduction	21
1.1 Overview	21
1.2 Applications for the ZyXEL Device	22
1.2.1 Internet Access	22
1.2.2 VoIP Features	23
1.2.3 ZyXEL Device’s USB Support	24
1.2.4 Wireless Connection	24
1.3 The WPS/WLAN Button	25
1.4 Ways to Manage the ZyXEL Device	25
1.5 Good Habits for Managing the ZyXEL Device	26
1.6 LEDs (Lights)	26
1.7 The RESET Button	28
Introducing the Web Configurator	29
2.1 Overview	29
2.1.1 Accessing the Web Configurator	29
2.2 The Web Configurator Layout	32
2.2.1 Title Bar	32
2.2.2 Main Window	33
2.2.3 Navigation Panel	33
Tutorials	37
3.1 Overview	37
3.2 Setting Up Your DSL Connection	37
3.3 How to Set up a Wireless Network	41
3.3.1 Example Parameters	41
3.3.2 Configuring the AP	41
3.3.3 Configuring the Wireless Client	43
3.4 Setting Up NAT Port Forwarding	50
3.5 How to Make a VoIP Call	52
3.5.1 VoIP Calls With a Registered SIP Account	52
3.6 Using the File Sharing Feature	55
3.6.1 Set Up File Sharing	55
3.6.2 Access Your Shared Files From a Computer	57
3.7 Using the Print Server Feature	58
3.8 Configuring the MAC Address Filter	73
3.9 Configuring Static Route for Routing to Another Network	74
3.10 Configuring QoS Queue and Class Setup	76
3.11 Access the ZyXEL Device Using DDNS	79
3.11.1 Registering a DDNS Account on www.dyndns.org	80
3.11.2 Configuring DDNS on Your ZyXEL Device	81
3.11.3 Testing the DDNS Setting	81
Technical Reference	83
Connection Status and System Info Screens	85
4.1 Overview	85
4.2 The Connection Status Screen	85
4.3 The System Info Screen	87
Broadband	91
5.1 Overview	91
5.1.1 What You Can Do in this Chapter	92
5.1.2 What You Need to Know	92
5.1.3 Before You Begin	93
5.2 The Broadband Screen	94
5.2.1 Add/Edit Internet Connection	95
5.3 The 3G Backup Screen	108
5.4 Technical Reference	110
Wireless	119
6.1 Overview	119
6.1.1 What You Can Do in this Chapter	119
6.1.2 Wireless Network Overview	119
6.1.3 Before You Begin	121
6.2 The Wireless General Screen	121
6.2.1 No Security	123
6.2.2 Basic (Static WEP/Shared WEP Encryption)	124
6.2.3 More Secure (WPA(2)-PSK)	126
6.2.4 WPA(2) Authentication	127
6.3 The More AP Screen	129
6.3.1 Edit More AP	130
6.4 The WPS Screen	131
6.5 The WMM Screen	133
6.6 Scheduling Screen	135
6.7 Technical Reference	135
6.7.1 Additional Wireless Terms	136
6.7.2 Wireless Security Overview	136
6.7.3 Signal Problems	139
6.7.4 BSS	139
6.7.5 MBSSID	140
6.7.6 WiFi Protected Setup (WPS)	141
Home Networking	149
7.1 Overview	149
7.1.1 What You Can Do in this Chapter	149
7.1.2 What You Need To Know	150
7.2 The LAN Setup Screen	153
7.3 The Static DHCP Screen	154
7.3.1 Before You Begin	154
7.4 The UPnP Screen	156
7.5 The File Sharing Screen	157
7.5.1 Before You Begin	157
7.5.2 Add/Edit File Sharing	159
7.6 The Printer Server Screen	160
7.6.1 Before You Begin	160
7.7 Technical Reference	161
7.8 Installing UPnP in Windows Example	165
7.9 Using UPnP in Windows XP Example	169
Routing	177
8.1 Overview	177
8.2 Configuring Static Route	178
8.2.1 Add/Edit Static Route	179
DNS Route	181
9.1 Overview	181
9.1.1 What You Can Do in this Chapter	182
9.2 The DNS Route Screen	182
9.2.1 Add/Edit DNS Route Edit	183
Quality of Service (QoS)	185
10.1 Overview	185
10.1.1 What You Can Do in this Chapter	185
10.1.2 What You Need to Know	186
10.2 The QoS General Screen	186
10.3 The Queue Setup Screen	188
10.3.1 Add/Edit a QoS Queue	189
10.4 The Class Setup Screen	190
10.4.1 Add/Edit QoS Class	191
10.5 The QoS Monitor Screen	194
10.6 QoS Technical Reference	195
10.6.1 IEEE 802.1Q Tag	195
10.6.2 IP Precedence	196
10.6.3 DiffServ	196
Network Address Translation (NAT)	199
11.1 Overview	199
11.1.1 What You Can Do in this Chapter	199
11.1.2 What You Need To Know	199
11.2 The Port Forwarding Screen	200
11.2.1 The Port Forwarding Screen	201
11.2.2 The Port Forwarding Edit Screen	202
11.3 The Sessions Screen	203
11.4 Technical Reference	204
11.4.1 NAT Definitions	204
11.4.2 What NAT Does	205
11.4.3 How NAT Works	205
Dynamic DNS	207
12.1 Overview	207
12.1.1 What You Need To Know	207
12.2 The Dynamic DNS Screen	208
Firewall	209
13.1 Overview	209
13.1.1 What You Can Do in this Chapter	209
13.1.2 What You Need to Know	210
13.2 The General Screen	211
13.3 The Services Screen	211
13.4 Firewall Technical Reference	213
13.4.1 Guidelines For Enhancing Security With Your Firewall	213
13.4.2 Security Considerations	213
MAC Filter	215
14.1 Overview	215
14.1.1 What You Need to Know	215
14.2 The MAC Filter Screen	216
Certificates	217
15.1 Overview	217
15.1.1 What You Can Do in this Chapter	217
15.1.2 What You Need to Know	217
15.1.3 Verifying a Certificate	219
15.2 Local Certificates	220
15.3 Trusted CA	222
15.4 Trusted CA Import	223
15.5 View Certificate	224
VoIP	225
16.1 Overview	225
16.1.1 What You Can Do in this Chapter	225
16.1.2 What You Need to Know	226
16.1.3 Before You Begin	227
16.2 The SIP Service Provider Screen	227
16.3 The SIP Account Screen	231
16.3.1 Add/Edit SIP Account	233
16.4 The SIP Common Screen	236
16.5 Multiple SIP Accounts	236
16.5.1 Outgoing Calls	237
16.5.2 Incoming Calls	238
16.6 The Phone Device Screen	239
16.6.1 Edit Phone Device	240
16.7 The Region Screen	241
16.8 The Call Rule Screen	241
16.9 The FXO Screen (“L” Models Only)	243
16.10 Technical Reference	244
16.10.1 VoIP	244
16.10.2 SIP	244
16.10.3 Quality of Service (QoS)	250
16.10.4 Phone Services Overview	251
Logs	255
17.1 Overview	255
17.1.1 What You Can Do in this Chapter	255
17.2 The Phone Log Screen	255
17.3 The VoIP Call History Screen	256
System Monitor	259
18.1 Overview	259
18.1.1 What You Can Do in this Chapter	259
18.2 The WAN Status Screen	260
18.3 The LAN Status Screen	261
18.4 The NAT Status Screen	262
18.5 The 3G Backup Status Screen	262
18.6 The VoIP Status Screen	263
User Account	267
19.1 Overview	267
19.2 The User Account Screen	267
Remote MGMT	269
20.1 Overview	269
20.1.1 What You Need to Know	269
20.2 The Remote MGMT Screen	270
System	271
21.1 Overview	271
21.1.1 What You Need to Know	271
21.2 The System Screen	271
Time Setting	273
22.1 Overview	273
22.2 The Time Setting Screen	273
Log Setting	275
23.1 Overview	275
23.2 The Log Setting Screen	275
Firmware Upgrade	277
24.1 Overview	277
24.2 The Firmware Upgrade Screen	277
Backup/Restore	279
25.1 Overview	279
25.2 The Backup/Restore Screen	279
25.3 The Reboot Screen	281
Diagnostic	283
26.1 Overview	283
26.1.1 What You Can Do in this Chapter	283
26.2 The Ping Screen	283
26.3 The DSL Line Screen	284
Troubleshooting	287
27.1 Overview	287
27.2 Power, Hardware Connections, and LEDs	287
27.3 ZyXEL Device Access and Login	288
27.4 Internet Access	290
27.5 Wireless Internet Access	292
27.6 Phone Calls and VoIP	293
27.7 USB Device Connection	294
27.8 UPnP	294
Product Specifications	295
IP Addresses and Subnetting	305
Setting Up Your Computer’s IP Address	317
Pop-up Windows, JavaScript and Java Permissions	347
Wireless LANs	357
Common Services	381
Open Software Announcements	385
Legal Information	409