ZyXEL Communications NWD-210N - FOR MAC V1.00 Guía de usuario Pagina 131
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NBG6616 User’s Guide
131
CHAPTER 17
Firewall
17.1 Overview
Use these screens to enable and configure the firewall that protects your NBG6616 and your LAN
from unwanted or malicious traffic.
Enable the firewall to protect your LAN computers from attacks by hackers on the Internet and
control access between the LAN and WAN. By default the firewall:
• allows traffic that originates from your LAN computers to go to all of the networks.
• blocks traffic that originates on the other networks from going to the LAN.
The following figure illustrates the default firewall action. User A can initiate an IM (Instant
Messaging) session from the LAN to the WAN (1). Return traffic for this session is also allowed (2).
However other traffic initiated from the WAN is blocked (3 and 4).
Figure 87 Default Firewall Action
17.1.1 What You Can Do
•Use the General screen to enable or disable the NBG6616’s firewall (Section 17.2 on page 133).
•Use the Services screen enable service blocking, enter/delete/modify the services you want to
block and the date/time you want to block them (Section 17.3 on page 133).
17.1.2 What You Need To Know
The following terms and concepts may help as you read through this chapter.
WAN
LAN
3
4
1
2
A
- User’s Guide 1
- IMPORTANT! 2
- READ CAREFULLY BEFORE USE 2
- Related Documentation 2
- Contents Overview 3
- Table of Contents 5
- Table of Contents 10
- NBG6616 User’s Guide 10
- CHAPTER 1 12
- 1.5 Resetting the NBG6616 13
- 1.6 The WPS Button 13
- 1.7 LEDs 14
- 1.8 Wall Mounting 15
- Chapter 1 Introduction 16
- CHAPTER 2 17
- 2.2.2 Password Screen 18
- 2.2.2.1 Weather Edit 19
- CHAPTER 3 20
- 3.3 Connect to Internet 21
- 3.3.1 Connection Type: IPoE 22
- 3.3.2 Connection Type: PPPoE 24
- 3.4 Router Password 25
- 3.5 Wireless Security 26
- CHAPTER 4 30
- CHAPTER 5 31
- 5.2 What You Can Do 32
- 5.3 What You Need to Know 32
- 5.4 Navigation Panel 32
- Status Screen 32
- 5.5 Network Map 33
- 5.6 Control Panel 34
- 5.6.1 Game Engine 35
- 5.6.2 Power Saving 35
- 5.6.3 Parental Control 36
- 5.6.4 Bandwidth MGMT 37
- 5.6.5 Firewall 38
- 5.6.6 Wireless Security 38
- 5.6.7 WPS 39
- CHAPTER 6 42
- 6.2.1 Navigation Panel 45
- Chapter 6 Router Mode 47
- LINK TAB FUNCTION 47
- Chapter 6 Router Mode 48
- CHAPTER 7 49
- 7.4 AP Mode Status Screen 51
- Chapter 7 Access Point Mode 52
- 7.5 LAN Screen 53
- Chapter 7 Access Point Mode 55
- CHAPTER 8 56
- Wireless Client 57
- Access Point 57
- WITHIN 2 MINUTES 58
- SSID_Guest 63
- SSID_Worker 63
- SSID_VoIP 63
- Chapter 8 Tutorials 67
- Technical Reference 68
- CHAPTER 9 69
- 9.4 DHCP Table 70
- 9.5 Packet Statistics 71
- 9.6 WLAN Station Status 72
- CHAPTER 10 74
- Encapsulation Method 75
- WAN IP Address 75
- DNS Server Address Assignment 75
- WAN MAC Address 75
- 10.4 Internet Connection 76
- Chapter 10 WAN 78
- 10.4.2 PPPoE Encapsulation 79
- Chapter 10 WAN 81
- 10.5 Advanced WAN Screen 82
- CHAPTER 11 84
- 11.1.1 What You Can Do 85
- 11.1.2 What You Should Know 85
- MAC Address Filter 86
- User Authentication 86
- Encryption 86
- Guest WLAN 87
- Guest WLAN Bandwidth 88
- Chapter 11 Wireless LAN 90
- 11.3 Wireless Security 91
- 11.3.2 WEP Encryption 92
- 11.3.3 WPA-PSK/WPA2-PSK 94
- 11.3.4 WPA/WPA2 95
- 11.4 More AP Screen 97
- 11.4.1 More AP Edit 98
- 11.5 MAC Filter Screen 100
- 11.8 WPS Screen 103
- 11.9 WPS Station Screen 105
- 11.10 Scheduling Screen 105
- CHAPTER 12 107
- 12.4 LAN IP Screen 108
- 12.5 IP Alias Screen 109
- 12.6 IPv6 LAN Screen 110
- CHAPTER 13 111
- 13.4 DHCP Client List Screen 114
- Chapter 13 DHCP Server 115
- LABEL DESCRIPTION 115
- CHAPTER 14 116
- 14.1.2 What You Need To Know 117
- 14.2 General 118
- 14.4 Port Trigger Screen 122
- 14.5 Technical Reference 123
- CHAPTER 15 126
- Chapter 15 DDNS 127
- Table 54 Dynamic DNS 127
- LABEL DESCRIPTION 127
- CHAPTER 16 128
- Chapter 16 Static Route 130
- CHAPTER 17 131
- What is a Firewall? 132
- Stateful Inspection Firewall 132
- About the NBG6616 Firewall 132
- 17.2 General Screen 133
- 17.3 Services Screen 133
- Chapter 17 Firewall 135
- CHAPTER 18 136
- Chapter 18 Content Filtering 137
- CHAPTER 19 138
- 19.2.2 Add/Edit a Service 141
- 19.3 Technical Reference 142
- File Name URL Checking 143
- CHAPTER 20 144
- Chapter 20 IPv6 Firewall 145
- Chapter 20 IPv6 Firewall 146
- CHAPTER 21 147
- 21.3 What You Need To Know 148
- 21.4 General Screen 148
- 21.5 Advanced Screen 148
- Advanced screen 149
- CHAPTER 22 154
- 22.4 WWW Screen 155
- 22.5 Telnet Screen 156
- 22.6 Wake On LAN Screen 156
- CHAPTER 23 158
- 23.3 UPnP Screen 159
- 23.4 Technical Reference 159
- CHAPTER 24 164
- 24.2 What You Can Do 165
- 24.3 What You Need To Know 165
- 24.4 Before You Begin 166
- 24.5 DLNA Screen 167
- 24.6 SAMBA Screen 167
- 24.7 FTP Screen 169
- Computer 170
- CHAPTER 25 174
- 25.4 Password Screen 175
- 25.5 Time Setting Screen 176
- 25.6 Firmware Upgrade Screen 177
- 25.8 Restart Screen 180
- 25.9 Language Screen 180
- Access Point 181
- 25.11 Sys OP Mode Screen 182
- Chapter 25 Maintenance 183
- CHAPTER 26 184
- I forgot the password 185
- 26.4 Internet Access 186
- 26.6 Wireless Connections 188
- 26.7 USB Device Problems 190
- APPENDIX A 191
- JavaScript 194
- Java Permissions 195
- JAVA (Sun) 196
- Mozilla Firefox 197
- Allowing Pop-Ups 198
- Enabling Java 198
- APPENDIX B 200
- Verifying Settings 203
- Windows Vista 204
- Windows 7 208
- Mac OS X: 10.3 and 10.4 212
- Mac OS X: 10.5 and 10.6 215
- Linux: Ubuntu 8 (GNOME) 218
- Linux: openSUSE 10.3 (KDE) 222
- Network Card icon 223
- APPENDIX C 228
- Appendix C Common Services 229
- Appendix C Common Services 230
- APPENDIX D 231
- Viewing Certifications 232
- ZyXEL Limited Warranty 232
- Open Source Licenses 232
- Regulatory Information 232
- Safety Warnings 234
- APPENDIX E 236
- Australia 241
- South Africa 241
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