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Chapter 19 Firewall
NBG-419N User’s Guide
166
Contents
Main
NBG-419N
Wireless N Home Router
Page
About This User's Guide
Intended Audience
Related Documentation
User Guide Feedback
Customer Support
Document Conventions
Warnings and Notes
Warnings tell you about things that could harm you or your device.
Syntax Conventions
Page
Safety Warnings
NBG-419N Users Guide 7
Safety Warnings
Page
Contents Overview
Page
Table of Contents
Page
Page
Page
Page
Part IV: Management ........................................................................... 171
Part V: Maintenance and Troubleshooting........................................ 195
Part VI: Appendices and Index ........................................................... 231
PART I
Page
CHAPTER 1
Getting to Know Your NBG-419N
Figure 1 NBG-419N Network
1.1 Overview
1.2 Applications
1.3 Ways to Manage the NBG-419N
1.4 Good Habits for Managing the NBG-419N
Figure 2 Front Panel
1.5 LEDs
Chapter 1 Getting to Know Your NBG-419N
Table 1 Front Panel LEDs and WPS Button
LED COLOR STATUS DESCRIPTION
Page
CHAPTER 2
Connection Wizard
2.1 Overview
2.2 Accessing the Wizard
2.3 Connect to Internet
2.3.1 Connection Type: DHCP
2.3.2 Connection Type: Static IP
Figure 7 Internet Connection Type: Static IP
2.3.3 Connection Type: PPPoE
Figure 8 Internet Connection Type: PPPoE
2.3.4 Connection Type: PPTP
Figure 9 Internet Connection Type: PPTP
2.3.5 Connection Type: L2TP
Figure 10 Internet Connection Type: L2TP
Page
2.4 Router Password
Figure 12 Router Password
Figure 13 Wireless Security: No Security
2.5 Wireless Security
2.5.1 Wireless Security: No Security
2.5.2 Wireless Security: WPA-PSK/WPA2-PSK
Figure 14 Wireless Security: WPA-PSK/WPA2-PSK
Table 7 Wireless Security: No Security
Table 8 Wireless Security: WPA-PSK/WPA2-PSK
Page
CHAPTER 3
Introducing the Web Configurator
3.1 Overview
3.2 Accessing the Web Configurator
3.2.1 Login Screen
3.2.2 Password Screen
3.2.3 Home Screen
Figure 18 Home Screen
3.2.3.1 Weather Edit
Figure 19 Change Weather
Table 11 Home Screen
3.2.3.2 Time/Date Edit
Figure 20 Change Password Screen
3.3 Resetting the NBG-419N
Table 12 Change Weather
Table 13 Change Password Screen
Page
CHAPTER 4
Monitor
4.1 Overview
4.2 What You Can Do
4.3 BW MGMT Monitor
4.4 DHCP Table
Figure 22 Summary: DHCP Table
4.5 Packet Statistics
Figure 23 Summary: Packet Statistics
Table 14 Summary: DHCP Table
4.6 WLAN Station Status
Figure 24 Summary: Wireless Association List
Table 15 Summary: Packet Statistics
Table 16 Summary: Wireless Association List
Page
CHAPTER 5
NBG-419N Modes
5.1 Overview
5.1.1 Web Configurator Modes
5.1.2 Device Modes
Figure 25 Device Mode Example
Note: Choose your Device Mode carefully to avoid having to change it later.
CHAPTER 6
Easy Mode
Navigation Panel
Control Panel
6.1 Overview
6.2 What You Can Do
Navigation Panel
Status Screen
Control Panel
6.3 What You Need to Know
6.4 Navigation Panel
6.5 Network Map
Figure 29 Network Map
6.6 Control Panel
Figure 30 Control Panel
Chapter 6 Easy Mode
NBG-419N Users Guide 55
The following table describes the labels in this screen.
6.6.1 Game Engine
traffic that it forwards out through an interface.
Figure 31 Game Engine
Table 18 Control Panel
ITEM DESCRIPTION
6.6.2 Power Saving
6.6.3 Content Filter
Figure 33 Content Filter
Table 19 Power Saving
Table 20 Content Filter
Note: The NBG-419N does not recognize wildcard characters as keywords.
6.6.4 Bandwidth MGMT
Figure 34 Bandwidth MGNT
6.6.5 Firewall
Figure 35 Firewall
Table 20 Content Filter
6.6.6 Wireless Security
The following table describes the general wireless LAN labels in this screen.
Table 21 Wireless Security
6.6.7 WPS
6.7 Status Screen in Easy Mode
Figure 38 Status Screen in Easy Mode
Table 23 Status Screen in Easy Mode
Page
CHAPTER 7
Router Mode
7.1 Overview
7.2 What You Can Do
7.3 Status Screen
Chapter 7 Router Mode
The following table describes the labels shown in the Status screen.
NBG-419N Users Guide 65
Table 24 Status Screen Icon Key: Router Mode (continued)
ICON DESCRIPTION
Table 25 Status Screen: Router Mode
network bandwidth that applications running in the network are using.
7.3.1 Navigation Panel
Figure 41 Navigation Panel: Router Mode
Table 25 Status Screen: Router Mode
LINK TAB FUNCTION
Chapter 7 Router Mode
LINK TAB FUNCTION
NBG-419N Users Guide 69
bandwidth that applications running in the network are using.
from the LAN, WAN or both.
Page
CHAPTER 8
Access Point Mode
8.1 Overview
Figure 42 Wireless Internet Access in Access Point Mode
8.2 What You Can Do
8.3 What You Need to Know
8.3.1 Setting your NBG-419N to AP Mode
8.3.2 Accessing the Web Configurator in Access Point Mode
8.3.3 Configuring your WLAN, Bandwidth Management and Maintenance Settings
8.4 AP Mode Status Screen
Figure 45 Status Screen: Access Point Mode
Table 27 Status Screen: Access Point Mode
Page
8.4.0.1 Navigation Panel
Figure 46 Menu: Access Point Mode
8.5 LAN Screen
Table 27 Status Screen: Access Point Mode
Chapter 8 Access Point Mode
NBG-419N Users Guide 77
The table below describes the labels in the screen.
Table 28 Network > LAN > IP
Page
CHAPTER 9
WISP Mode
9.1 Overview
Figure 48 Wireless Client Mode
9.2 What You Can Do
9.3 What You Need to Know
9.3.1 Setting your NBG-419N to WISP Mode
9.3.2 Accessing the Web Configurator in WISP Mode
9.4 WISP Mode Status Screen
Chapter 9 WISP Mode
The following table describes the labels shown in the Status screen.
Table 29 Status Screen: WISP Mode
9.5 Wireless LAN General Screen
Figure 52 WISP Mode: LAN > General Screen
Figure 53 No Security (WISP)
9.5.0.1 No Security
Table 30 WISP Mode: LAN > General Screen
9.5.1 Static WEP
Figure 54 WEP (WISP)
Table 31 No Security (WISP)
Table 32 WEP (WISP)
Chapter 9 WISP Mode
9.5.2 WPA(2)-PSK
Figure 55 WPA-PSK/WPA2-PSK (WISP)
Table 33 WPA-PSK/WPA2-PSK (WISP)
9.5.3 Advance Screen
Figure 56 Configuration > Wireless LAN > Advance Screen (WISP)
Table 34 Configuration > Wireless LAN > Advance Screen (WISP)
CHAPTER 10
Tutorials
10.3.1 Push Button Configuration (PBC)
Figure 58 Example WPS Process: PBC Method
10.3.2 PIN Configuration
Wireless Client NBG-419N
Figure 59 Example WPS Process: PIN Method
10.4 Enabling and Configuring Wireless Security (No WPS)
Figure 60 Tutorial: Network > Wireless LAN > General
Figure 61 Tutorial: Checking Wireless Settings
10.4.1 Configure Your Notebook
Page
Figure 65 Link Status
PART II
Page
CHAPTER 11
Wireless LAN
11.1 Overview
11.2 What You Can Do
11.3 What You Should Know
11.3.1 Wireless Security Overview
11.3.1.1 SSID
11.3.1.2 MAC Address Filter
11.3.1.3 Encryption
11.3.1.4 WPS
11.3.1.5 WDS
Table 35 Types of Encryption for Each Type of Authentication
11.4 General Wireless LAN Screen
11.4.1 No Security
11.4.2 WEP Encryption
Table 37 Network > Wireless LAN > General: No Security
Figure 69 Network > Wireless LAN > General: Static WEP
Table 38 Network > Wireless LAN > General: Static WEP
Chapter 11 Wireless LAN
Refer to Table 36 on page 103 for descriptions of the other labels in this screen.
NBG-419N Users Guide 107
11.4.3 WPA-PSK/WPA2-PSK
Figure 70 Network > Wireless LAN > General: WPA-PSK/WPA2-PSK
Table 39 Network > Wireless LAN > General: WPA-PSK/WPA2-PSK
11.5 MAC Filter
Figure 71 Network > Wireless LAN > MAC Filter
Table 40 Network > Wireless LAN > MAC Filter
11.6 Wireless LAN Advanced Screen
Figure 72 Network > Wireless LAN > Advanced
Table 41 Network > Wireless LAN > Advanced
Chapter 11 Wireless LAN
NBG-419N Users Guide 111
11.7 Quality of Service (QoS) Screen
Figure 73 Network > Wireless LAN > QoS
Table 41 Network > Wireless LAN > Advanced
11.8 WPS Screen
Figure 74 Network > Wireless LAN > WPS
Table 42 Network > Wireless LAN > QoS
Table 43 Network > Wireless LAN > WPS
11.9 WPS Station Screen
11.10 Scheduling Screen
Figure 76 Network > Wireless LAN > Scheduling
Table 44 Network > Wireless LAN > WPS Station
11.11 WDS Screen
Table 45 Network > Wireless LAN > Scheduling
Figure 77 Network > Wireless LAN > WDS
Table 46 Network > Wireless LAN > WDS
Page
Page
CHAPTER 12
WAN
12.1 Overview
Figure 78 LAN and WAN
12.2 What You Can Do
12.3 What You Need To Know
12.3.1 Configuring Your Internet Connection
Encapsulation Method
WAN IP Address
DNS Server Address Assignment
12.3.2 Multicast
Figure 79 Multicast Example
12.4 Internet Connection
Table 47 Network > WAN > Internet Connection: Ethernet Encapsulation
12.4.2 PPPoE Encapsulation
Figure 81 Network > WAN > Internet Connection: PPPoE Encapsulation
Table 48 Network > WAN > Internet Connection: PPPoE Encapsulation
12.4.3 PPTP Encapsulation
Table 48 Network > WAN > Internet Connection: PPPoE Encapsulation
Page
Table 49 Network > WAN > Internet Connection: PPTP Encapsulation
Chapter 12 WAN
NBG-419N Users Guide 129
12.4.4 L2TP Encapsulation
Table 49 Network > WAN > Internet Connection: PPTP Encapsulation
Figure 83 Network > WAN > Internet Connection: L2TP Encapsulation
Table 50 Network > WAN > Internet Connection: L2TP Encapsulation
12.5 Advanced WAN Screen
Note: The categories shown in this screen are independent of each other.
Figure 84 Network > WAN > Advanced
12.6 IGMP Snooping Screen
Table 51 Network > WAN > Advanced
Figure 85 Network > WAN > IGMP Snooping
Table 52 Network > WAN > IGMP Snooping
Page
CHAPTER 13
LAN
13.1 Overview
Figure 86 LAN Example
13.2 What You Can Do
13.3 What You Need To Know
Figure 87 LAN and WAN IP Addresses
13.3.1 IP Pool Setup
13.3.2 LAN TCP/IP
13.3.3 IP Alias
13.4 LAN IP Screen
Figure 88 Network > LAN > IP
Table 53 Network > LAN > IP
13.5 IP Alias Screen
Figure 89 Network > LAN > IP Alias
Table 54 Network > LAN > IP Alias
CHAPTER 14
DHCP Server
Figure 90 Network > DHCP Server > General
14.1 Overview
14.2 What You Can Do
14.4 Advanced Screen
Figure 91 Network > DHCP Server > Advanced
Table 55 Network > DHCP Server > General
Chapter 14 DHCP Server
NBG-419N Users Guide 141
Table 56 Network > DHCP Server > Advanced
Page
CHAPTER 15
Network Address Translation (NAT)
15.1 Overview
Figure 92 NAT Example
15.2 What You Can Do
15.3 General NAT Screen
Figure 93 Network > NAT > General
Table 57 Network > NAT > General
15.4 NAT Application Screen
Figure 94 Network > NAT > Application
Table 58 Network > NAT > Application
15.5 NAT Advanced Screen
Table 58 Network > NAT > Application (continued)
Chapter 15 Network Address Translation (NAT)
Table 59 Network > NAT > Advanced
15.5.1 Trigger Port Forwarding Example
Figure 96 Trigger Port Forwarding Process: Example
15.5.2 Two Points To Remember About Trigger Ports
Page
CHAPTER 16
Dynamic DNS
16.4 Dynamic DNS Screen
Figure 97 Network > DDNS
Table 60 Network > DDNS
CHAPTER 17
Static Route
17.1 Overview
Figure 98 Example of Static Routing Topology
17.2 What You Can Do
17.3 IP Static Route Screen
Figure 99 Network > Static Route
Table 61 Network > Static Route
Page
CHAPTER 18
RIP
Figure 100 Network > RIP
18.1 Overview
18.2 What You Can Do
Table 62 Network > RIP
Page
Page
CHAPTER 19
Firewall
Figure 101 Default Firewall Action
19.1 Overview
19.2 What You Can Do
19.3 What You Need To Know
19.4 General Firewall Screen
Figure 102 Security > Firewall > General
19.5 Services Screen
Table 63 Security > Firewall > General
Chapter 19 Firewall
Figure 103 Security > Firewall > Services
Table 64 Security > Firewall > Services
Chapter 19 Firewall
See Appendix E on page 281 for commonly used services and port numbers.
NBG-419N Users Guide 165
Page
CHAPTER 20
Content Filter
20.1 Overview
20.2 What You Can Do
20.3 What You Need To Know
20.4 Content Filter Screen
Figure 104 Security > Content Filter > Content Filter
Chapter 20 Content Filter
NBG-419N Users Guide 169
Table 65 Security > Content Filter > Content Filter
Page
Page
Page
CHAPTER 21
Bandwidth Management
21.1 Overview
21.2 What You Can Do
21.3 What You Need To Know
21.4 General Screen
Figure 106 Management > Bandwidth Management > General
21.5 Advanced Screen
Note: The two tables shown in this screen can be configured and applied at the same time.
Table 66 Management > Bandwidth Management > General
Figure 107 Management > Bandwidth Management > Advanced
Table 67 Management > Bandwidth Management > Advanced
Chapter 21 Bandwidth Management
NBG-419N Users Guide 177
Table 67 Management > Bandwidth Management > Advanced (continued)
21.5.1 Rule Configuration: Application Rule Configuration
Figure 108 Bandwidth Management Rule Configuration: Application List
Table 68 Bandwidth Management Rule Configuration: Application List
21.5.2 Rule Configuration: User Defined Service Rule Configuration
Figure 109 Bandwidth Management Rule Configuration: User-defined Service
Table 69 Bandwidth Management Rule Configuration: User-defined Service
21.6 Monitor Screen
Figure 110 Management > Bandwidth Management > Monitor
21.6.1 Predefined Bandwidth Management Services
Table 70 Media Bandwidth Management Setup: Services
Page
CHAPTER 22
Remote Management
22.1 Overview
Note: The NBG-419N is managed using the Web Configurator.
22.2 What You Can Do
22.4 WWW Screen
Figure 111 Management > Remote Management > WWW
Table 71
Page
Page
CHAPTER 23
Universal Plug-and-Play (UPnP)
23.1 Overview
23.2 What You Can Do
23.3 What You Need to Know
23.4 UPnP Screen
Figure 112 Management > UPnP
23.5 Technical Refereance
23.5.1 Using UPnP in Windows XP Example
Figure 113 Network Connections
23.5.1.1 Auto-discover Your UPnP-enabled Network Device
Table 72 Management > UPnP
Page
23.5.2 Web Configurator Easy Access
Page
Page
Page
PART V
Page
CHAPTER 24
Maintenance
Table 73 Maintenance > General
CHAPTER 25
Password
25.1 Overview
25.2 What You Can Do
25.3 What You Need to Know
25.4 Password Screen
Figure 123 Maintenance > Password
Table 74 Maintenance > Password
CHAPTER 26
Time
Chapter 26 Time
he following table describes the labels in this screen.
Table 75 Maintenance > Time
Chapter 26 Time
NBG-419N Users Guide 203
Page
CHAPTER 27
Firmware Upgrade
Note: Do not turn off the NBG-419N while firmware upload is in progress!
Figure 126 Network Temporarily Disconnected
Table 76 Maintenance > Firmware Upgrade
CHAPTER 28
Backup/Restore
28.1 Overview
28.2 What You Can Do
28.3 Configuration Screen
Figure 127 Maintenance > Backup/Restore
Table 77 Maintenance > Backup/Restore
Page
Page
CHAPTER 29
Reset/Restart
Page
CHAPTER 30
Sys OP Mode
Page
WISP
Figure 131 IP Address in Access Point Mode
Table 78 Maintenance > Sys OP Mode
30.4 Sys Op Mode Screen
Figure 132 Maintenance > Sys OP Mode
Chapter 30 Sys OP Mode
CHAPTER 31
Troubleshooting
31.1 Power, Hardware Connections, and LEDs
The NBG-419N does not turn on. None of the LEDs turn on.
One of the LEDs does not behave as expected.
31.2 NBG-419N Access and Login
I dont know the IP address of my NBG-419N.
I forgot the password.
I cannot see or access the Login screen in the Web Configurator.
I can see the Login screen, but I cannot log in to the NBG-419N.
31.3 Internet Access
I cannot access the Internet.
The Internet connection is slow or intermittent.
31.4 Resetting the NBG-419N to Its Factory Defaults
You will lose all of your changes when you push the RESET button.
31.5 Wireless Router/AP Troubleshooting
I cannot access the NBG-419N or ping any computer from the WLAN (wireless AP or router).
Page
Page
NBG-419N Users Guide 225
CHAPTER 32
Product Specifications
The following tables summarize the NBG-419Ns hardware and firmware features.
Table 79 Hardware Features
Chapter 32 Product Specifications
Table 80 Firmware Features
FEATURE DESCRIPTION
Note: Only upload firmware for your specific model!
Chapter 32 Product Specifications
NBG-419N Users Guide 227
Table 80 Firmware Features
FEATURE DESCRIPTION
32.1 Wall-mounting Instructions
Figure 133 Wall-mounting Example
Page
Page
PART VI
Page
APPENDIX A
Pop-up Windows, JavaScripts and Java Permissions
Internet Explorer Pop-up Blockers
Disable pop-up Blockers
Figure 136 Internet Options: Privacy
Enable pop-up Blockers with Exceptions
Page
Page
Figure 139 Internet Options: Security
Page
Page
Page
APPENDIX B
IP Addresses and Subnetting
Introduction to IP Addresses
Structure
Figure 143 Network Number and Host ID
Subnet Masks
Table 81 Subnet Mask - Identifying Network Number
Network Size
Table 82 Subnet Masks
Table 81 Subnet Mask - Identifying Network Number
Notation
Table 83 Maximum Host Numbers
Table 84 Alternative Subnet Mask Notation
Subnetting
Figure 144 Subnetting Example: Before Subnetting
Figure 145 Subnetting Example: After Subnetting
Example: Four Subnets
Table 85 Subnet 1
Table 86 Subnet 2
Table 87 Subnet 3
Table 88 Subnet 4
Example: Eight Subnets
Subnet Planning
Table 88 Subnet 4 (continued)
Table 89 Eight Subnets
Table 90 24-bit Network Number Subnet Planning
Configuring IP Addresses
Table 91 16-bit Network Number Subnet Planning
Private IP Addresses
APPENDIX C
Setting up Your Computers IP Address
Windows 95/98/Me
Figure 146 WIndows 95/98/Me: Network: Configuration
Installing Components
Configuring
Figure 147 Windows 95/98/Me: TCP/IP Properties: IP Address
Figure 148 Windows 95/98/Me: TCP/IP Properties: DNS Configuration
Page
Page
Figure 152 Windows XP: Local Area Connection Properties
Figure 153 Windows XP: Internet Protocol (TCP/IP) Properties
Figure 154 Windows XP: Advanced TCP/IP Properties
Figure 155 Windows XP: Internet Protocol (TCP/IP) Properties
Page
Figure 157 Macintosh OS 8/9: TCP/IP
Page
Linux
Note: Make sure you are logged in as the root administrator.
Figure 160 Red Hat 9.0: KDE: Network Configuration: Devices
Using the K Desktop Environment (KDE)
Page
Figure 163 Red Hat 9.0: KDE: Network Configuration: Activate
Using Configuration Files
Figure 164 Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0
Figure 165 Red Hat 9.0: Static IP Address Setting in ifconfig-eth0
Figure 166 Red Hat 9.0: DNS Settings in resolv.conf
Figure 167 Red Hat 9.0: Restart Ethernet Card
32.1.1 Verifying Settings
Figure 168 Red Hat 9.0: Checking TCP/IP Properties
APPENDIX D
Wireless LANs
Wireless LAN Topologies
Ad-hoc Wireless LAN Configuration
Figure 169 Peer-to-Peer Communication in an Ad-hoc Network
ESS
Figure 171 Infrastructure WLAN
Channel
RTS/CTS
Figure 172 RTS/CTS
Fragmentation Threshold
Preamble Type
Note: The AP and the wireless stations MUST use the same preamble mode in order to communicate.
IEEE 802.11g Wireless LAN
IEEE 802.1x
RADIUS
Table 92 IEEE 802.11g
Types of RADIUS Messages
Types of Authentication
EAP-MD5 (Message-Digest Algorithm 5)
EAP-TLS (Transport Layer Security)
EAP-TTLS (Tunneled Transport Layer Service)
PEAP (Protected EAP)
LEAP
Dynamic WEP Key Exchange
WPA(2)
Encryption
Table 93 Comparison of EAP Authentication Types
User Authentication
32.1.2 WPA(2)-PSK Application Example
Figure 173 WPA(2)-PSK Authentication
32.1.3 WPA(2) with RADIUS Application Example
Security Parameters Summary
Table 94 Wireless Security Relational Matrix
APPENDIX E
Common Services
Table 95 Commonly Used Services
Appendix E Common Services
NAME PROTOCOL PORT(S) DESCRIPTION
Appendix E Common Services
NAME PROTOCOL PORT(S) DESCRIPTION
NBG-419N Users Guide 283
Page
APPENDIX F
Legal Information
Copyright
Disclaimer
Certifications
!
Notices
Industry Canada Statement
IMPORTANT NOTE: IC Radiation Exposure Statement:
Viewing Certifications
ZyXEL Limited Warranty
Note
Registration
End-User License Agreement for "NBG-419N"
Page
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Index
A
B
C
D
E
F
G
H
I
N
O
P
Q
R
T
U
V
W
