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ZyXEL Communications
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NBG418N
User Manual
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User Manual
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ZyXEL Communications nbg-418n User Manual

NBG-418N

Wireless N Home Router
Default Login Details
LAN IP Address
User Name admin Password 1234
Version 1.00 Edition 1, 4/2012
www.zyxel.com
http://192.168.1.1
www.zyxel.com
IMPORTANT! READ CAREFULL Y
BEFORE USE. KEEP THIS GUIDE
IMPORTANT!
Copyright © 2012 ZyXEL Communications Corporation
IMPORTANT! READ CAREFULLY BEFORE USE. KEEP THIS GUIDE FOR FUTURE REFERENCE.
Graphics in this book may differ slightly from the product due to differences in operating systems, operating system versions, or if you installed updated firmware/software for your device. Every effort has been made to ensure that the information in this manual is accurate.
Related Documentation
•Quick Start Guide The Quick Start Guide shows how to connect the NBG-418N and configure it using the Web
Configurator wizard.
NBG-418N User’s Guide2

Contents Overview

Contents Overview
User’s Guide .......................................................................................................................................11
Introduction .............................................................................................................................................13
The Web Configurator .............................................................................................................................17
Connection Wizard ....... ... ................................................ .... ... .................................................................21
Modes ....................................................................................................................................................35
Tutorials ..................................................................................................................................................57
Technical Reference ..........................................................................................................................65
Wireless LAN ..................................... .............................................. ... ... ... ... .... ... ....................................67
WAN ....................................................... ...................................................... ...........................................85
LAN .........................................................................................................................................................93
DHCP Server ..........................................................................................................................................97
Network Address Translation ................................................................................................................101
Dynamic DNS ........................................................................................................................................109
Firewall ...................................... ................................ ................................... ......................................... 111
Remote Management ............................................................................................................................115
Universal Plug-and-Play (UPnP) ...........................................................................................................119
System ..................................................................................................................................................125
Logs ......................................................................................................................................................129
Tools ............................................. ................................ ................................ .........................................131
Sys OP Mode ........................................................................................................................................137
Language ..............................................................................................................................................139
Troubleshooting ....................................................................................................................................141
NBG-418N User’s Guide
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Contents Overview
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NBG-418N User’s Guide

Table of Contents

Table of Contents
Contents Overview ..............................................................................................................................3
Table of Contents .................................................................................................................................5
Part I: User’s Guide ......................................................................................... 11
Chapter 1
Introduction.........................................................................................................................................13
1.1 Overview ................................................................ ... .... ... .................................................................13
1.2 Securing the NBG-418N ...................................................................................................................14
1.3 LEDs ............................... .... ... ... ... .... ............................................. ... ... ... .... .......................................15
1.4 The WPS Button ....................................... ... .... ... ... ... ........................................................................15
1.5 Wall Mounting .............................. .... ... ... ... ... .... ............................................. ... ... .... ... .......................16
Chapter 2
The Web Configurator........................................................................................................................17
2.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................17
2.2 Accessing the Web Configurator .......................................................................................................17
2.3 Resetting the NBG-418N ............................. .... ... ... ... .... ... ... ... .... ... ....................................................19
2.3.1 Using the RESET Button .........................................................................................................19
Chapter 3
Connection Wizard.............................................................................................................................21
3.1 Wizard Setup .................................... ... ... ...........................................................................................21
3.2 Connection Wizard: STEP 1: System Information . ... .... ... ... ... .... ... ... ... ... .... ... ... .................................22
3.2.1 System Name ......................................................................... ... ... .... ... ... ... .... ..........................22
3.2.2 Domain Name ............ ... ............................................. ... .... ... ... ... ... ...........................................23
3.3 Connection Wizard: STEP 2: Wireless LAN ......................................................................................23
3.3.1 WPA-PSK or WPA2-PSK Security ...........................................................................................24
3.4 Connection Wizard: STEP 3: Internet Configuration .........................................................................25
3.4.1 Ethernet Connection ..................... ... ... .... ... ... ... .... ... .................................................................26
3.4.2 PPPoE Connection ..................................................................................................................26
3.4.3 PPTP Connection ...................................... ... ... .... ... ... ... ...........................................................27
3.4.4 Your IP Address .......................................................................................................................28
3.4.5 WAN IP Address Assignment ..................................................................................................29
3.4.6 IP Address and Subnet Mask ..................................................................................................30
3.4.7 DNS Server Address Assignment ............. ... ... .... ... ... ... ................................................. ... ... ... .30
3.4.8 WAN IP and DNS Server Address Assignment .......................................................................30
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Table of Contents
3.4.9 WAN MAC Address .................................................................................................................31
3.5 Connection Wizard Complete ...........................................................................................................32
Chapter 4
Modes .................................................................................................................................................35
4.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................35
4.2 Setting your NBG-418N to Router Mode ...........................................................................................36
4.2.1 Status Screen (Router Mode) ..................................................................................................37
4.2.2 Router Mode Navigation Panel .................. ..............................................................................42
4.3 Setting your NBG-418N to AP Mode ................................... ... .... ... ... ... ..............................................44
4.3.1 Status Screen (AP Mode) ........................................................................................................45
4.3.2 AP Navigation Panel ................................................................................................................47
4.4 Setting your NBG-418N to Universal Repeater Mode .......................................................................48
4.4.1 Status Screen (Universal Repeater Mode) ..............................................................................49
4.4.2 Universal Repeater Navigation Panel . .... ... ... ... .... ... ... ... .... ............................................. ... ... ....51
4.5 Setting your NBG-418N to Client Bridge Mode .................................................................................52
4.5.1 Status Screen (Client Bridge Mode) ........................................................................................53
4.5.2 Client Bridge Navigation Panel ..................... ... .... ... ... ... .... ... ... ... ... .... .......................................54
Chapter 5
Tutorials...............................................................................................................................................57
5.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................57
5.2 How to Connect to the Internet from an AP ......................................................................................57
5.2.1 Configure Wireless Security Using WPS on both your NBG-418N and Wireless Client .........57
5.3 Enable and Configure Wireless Security without WPS on your NBG-418N .....................................61
Part II: Technical Reference............................................................................65
Chapter 6
Wireless LAN.......................................................................................................................................67
6.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................67
6.2 What You Can Do ............................ ... ... ... ... .... ... ... ................................................. ... ... ....................68
6.3 What You Should Know ....................................................................................................................69
6.3.1 Wireless Security Overview .....................................................................................................69
6.4 General Wireless LAN Screen ........................ ................................................ ... .... ... .......................70
6.4.1 No Security ................................ ... ... ... .... ... ... ... .............................................. ... ... ... .................72
6.4.2 WEP Encryption .............. ... .....................................................................................................73
6.4.3 WPA-PSK/WPA2-PSK .............................................................................................................74
6.5 MAC Filter .................... ... .... ... ... ............................................. .... ... ... ... ... ...........................................75
6.6 Wireless LAN Advanced Screen ......................... ... ... .... ... ... ... ................................................. ..........76
6.7 Quality of Service (QoS) Screen .......................................................................................................78
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Table of Contents
6.8 WPS Screen .............................. ... .... ... ... ... ... .... ............................................. ... ... .... ... .......................79
6.9 WPS Station Screen ..........................................................................................................................80
6.10 Scheduling Screen ..........................................................................................................................81
6.11 AP Select Screen ............................................................................................................................82
6.12 WLAN Info Screen ..........................................................................................................................83
Chapter 7
WAN .....................................................................................................................................................85
7.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................85
7.2 What You Need To Know ....................... ... ... .... ... ... ... ........................................................................85
7.2.1 Configuring Your Internet Connection ......................................................................................85
7.3 Internet Connection ... ... ... .... ... ... ... .... .................................................................................................86
7.3.1 Ethernet Encapsulation .......... ... ... ... ... .... .................................................................................86
7.3.2 PPPoE Encapsulation .............................................................................................................88
7.3.3 PPTP Encapsulation ........... .... ... ... ... ... .... ... ... ................................................. ... ... ....................90
Chapter 8
LAN ......................................................................................................................................................93
8.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................93
8.2 What You Need To Know ....................... ... ... .... ... ... ... ........................................................................93
8.2.1 IP Pool Setup ...........................................................................................................................94
8.2.2 LAN TCP/IP ............................ ... ............................................. ... ... .... .......................................94
8.3 LAN IP Screen .................................... ............................................. ... ... .... ... ... .................................94
Chapter 9
DHCP Server .......................................................................................................................................97
9.1 Overview ................... ... ... .... ... ... ... .... ............................................. ... ... ... .... ... ... ... ..............................97
9.2 What You Can Do ............................ ... ... ... ... .... ... ... ................................................. ... ... ....................97
9.3 What You Need To Know ....................... ... ... .... ... ... ... ........................................................................97
9.4 General Screen ............... .... ... ... ... .... ... ... ... ........................................................................................97
9.5 Advanced Screen ...........................................................................................................................98
9.6 Client List Screen ............ .... ... ... ............................................. .... ... ... ... ... .........................................100
Chapter 10
Network Address Translation..........................................................................................................101
10.1 Overview ....................................................................................................................................101
10.2 What You Can Do .........................................................................................................................102
10.2.1 What You Need To Know ............................................ .......................................... ...............102
10.3 General NAT Screen .....................................................................................................................103
10.4 NAT Application Screen ..............................................................................................................104
10.5 Technical Reference ............................................. ....... ...... ... ....... ...... ....... ...... ....... ...... ..................106
10.5.1 NAT Port Forwarding: Services and Port Numbers .............................................................106
10.5.2 NAT Port Forwarding Example ............................................................................................107
NBG-418N User’s Guide
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Table of Contents
Chapter 11
Dynamic DNS ....................................................................................................................................109
11.1 Overview ......................................................................................................................................109
11.2 Dynamic DNS Screen .................................................................................................................109
Chapter 12
Firewall ..............................................................................................................................................111
12.1 Overview ..................................................................................................................................... 111
12.2 What You Can Do ......................................................................................................................... 111
12.3 What You Need To Know ..............................................................................................................112
12.3.1 About the NBG-418N Firewall .............................................................................................112
12.3.2 VPN Pass Through Features ...................... ....................... ...................... ....................... .....112
12.4 General Firewall Screen .............................................................................................................112
12.5 Services Screen .........................................................................................................................113
Chapter 13
Remote Management........................................................................................................................115
13.1 Overview .......................................................................................................................................115
13.1.1 Remote Management Limitations ........................................................................................116
13.1.2 Remote Management and NAT ...........................................................................................116
13.1.3 System Timeout ...................................................................................................................116
13.2 WWW Screen .............................................................................................................................116
Chapter 14
Universal Plug-and-Play (UPnP)......................................................................................................119
14.1 Overview ......................................................................................................................................119
14.2 What You Need to Know ...............................................................................................................119
14.3 Configuring UPnP .........................................................................................................................120
14.3.1 Using UPnP in Windows XP Example .................................................................................120
14.3.2 Web Configurator Easy Access ......................................... .................................................. 122
Chapter 15
System...............................................................................................................................................125
15.1 Overview .......................................................................................................................................125
15.2 What You Can Do .........................................................................................................................125
15.3 System General Screen ...............................................................................................................125
15.4 Time Setting Screen ......................................................................................................................126
Chapter 16
Logs...................................................................................................................................................129
16.1 Overview .......................................................................................................................................129
16.2 What You Need to Know ...............................................................................................................129
16.3 View Log Screen ..................... ... ...................................................................................................129
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NBG-418N User’s Guide
Table of Contents
Chapter 17
Tools ..................................................................................................................................................131
17.1 Overview .......................................................................................................................................131
17.2 What You Can Do .........................................................................................................................131
17.3 Firmware Upload Screen ........................................ ................................................. ... ... ... ............131
17.4 Configuration Screen ....................................................................................................................133
17.4.1 Backup Configuration ..........................................................................................................133
17.4.2 Restore Configuration ....................... ....................... ....................... ...................... ...............133
17.4.3 Back to Factory Defaults ............ ... ... .... ... ... ... .............................................. ... ... ... ... .... ........134
17.5 Restart Screen ..............................................................................................................................134
Chapter 18
Sys OP Mode.................................................................................................................... .................137
18.1 Overview .......................................................................................................................................137
18.2 General Screen .............................................................................................................................137
Chapter 19
Language...........................................................................................................................................139
19.1 Language Screen ..........................................................................................................................139
Chapter 20
Troubleshooting................................................................................................................................141
20.1 Power, Hardware Connections, and LEDs ........................ ... .... ... ... ... ............................................141
20.2 NBG-418N Access and Login .......................................................................................................142
20.3 Internet Access .............................................................................................................................143
20.4 Resetting the NBG-418N to Its Factory Defaults ..........................................................................144
20.5 Wireless Problems ........................................................................................................................145
Appendix A IP Addresses and Subnetting.......................................................................................147
Appendix B Pop-up Windows, JavaScripts and Java Permissions..................................................157
Appendix C Setting Up Your Computer’s IP Address......................................................................167
Appendix D Wireless LANs..............................................................................................................195
Appendix E Common Services........................................................................................................209
Appendix F Legal Information..........................................................................................................213
Index ..................................................................................................................................................219
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Table of Contents
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NBG-418N User’s Guide
PART I

User’s Guide

11
12

1.1 Overview

WLAN
WAN
LAN1
LAN2
LAN3
LAN4
The NBG-418N extends the range of your existing wired network without additional wiring, providing easy network access to mobile users.
Your can create the following connections using the NBG-418N:
• LAN. You can connect network devices via the Ethernet ports of the NBG-418N so that they can communicate with each other and access the Internet.
• WLAN. Wireless clients can connect to the NBG-418N to access network resources.
• WAN. Connect to a broadband modem/router for Internet access.
Figure 1 NBG-418N Network
CHAPTER 1

Introduction

You can set up the NBG-418N with other IEEE 802.11b/g/n compatible devices in one of the following device modes:
•Router
• Access Point
• Universal Repeater
• Client Bridge
NBG-418N User’s Guide 13
Chapter 1 Introduction
Use a (supported) web browser to manage the NBG-418N. Menus vary according to which mode you’re using.
Router Mode Non-Router Mode
See Chapter 4 on page 35 for more information on these modes.

1.2 Securing the NBG-418N

Do the following things regularly to make the NBG-418N more secure and to manage the NBG­418N more effectively.
• Change the password. Use a password that’s not easy to guess and that consists of different types of characters, such as numbers and letters.
• Write down the password and put it in a safe place.
• Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the device becomes unstable or even crashes. If you forget your password, you will have to reset the NBG-418N to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the NBG-418N. You could simply restore your last configuration.
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NBG-418N User’s Guide

1.3 LEDs

Figure 2 Front Panel
The following table describes the LEDs and the WPS button.
Table 1 Front Panel LEDs and WPS Button
LED COLOR STATUS DESCRIPTION
POWER Green On The NBG-418N is receiving power and functioning properly.
LAN 1-4 Green On The NBG-418N has a successful 10/100MB LAN connection.
WAN Green On The NBG-418N has a successful 10/100MB WAN connection.
WLAN Green On The NBG-418N is ready, but is not sending/receiving data
Chapter 1 Introduction
Off The NBG-418N is not receiving power.
Blinking The NBG-418N is sending/receiving data through the LAN. Off The LAN is not connected.
Blinking The NBG-418N is sending/receiving data through the WAN. Off The WAN connection is not ready, or has failed.
through the wireless LAN.
Blinking The NBG-418N is sending/receiving data through the wireless
LAN.
WPS Green On WPS status is configured.

1.4 The WPS Button

Your NBG-418N supports WiFi Protected Setup (WPS), which is an easy way to set up a secure wireless network. WPS is an industry standard specification, defined by the WiFi Alliance.
WPS allows you to quickly set up a wireless network with strong security, without having to configure security settings manually. Each WPS connection works between two devices. Both devices must support WPS (check each device’s documentation to make sure).
Depending on the devices you have, you can either press a button (recommended) on the device itself, or in its configuration utility or enter a PIN (a unique Personal Identification Number that
The NBG-418N is negotiating a WPS connection with a wireless client.
Off The wireless LAN is not ready or has failed.
Blinking The NBG-418N is negotiating a WPS connection with a wireless
client.
Off The WPS status is not configured or disabled.
NBG-418N User’s Guide
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Chapter 1 Introduction
allows one device to authenticate the other) in each of the two devices. When WPS is activated on a device, it has two minutes to find another device that also has WPS activated. Then, the two devices connect and set up a secure network by themselves.
For more information on using WPS, see Section 5.2.1 on page 57.

1.5 W all Mounting

You may need screw anchors if mounting on a concrete or brick wall. Table 2 Wall Mounting Information
Distance between holes 12 cm M4 Screws Two Screw anchors (optional) Two
1 Select a position free of obstructions on a wall strong enough to hold the weight of the device.
2 Mark two holes on the wall at the appropriate distance apart for the screws.
Be careful to avoid damaging pipes or cables located inside the wall when drilling holes for the screws.
3 If using screw anchors, drill two holes for the screw anchors into the wall. Push the anchors into the
full depth of the holes, then insert the screws into the anchors. Do not insert the screws all the way in - leave a small gap of about 0.5 cm.
If not using screw anchors, use a screwdriver to insert the screws into the wall. Do not insert the screws all the way in - leave a gap of about 0.5 cm.
4 Make sure the screws are fastened well enough to hold the weight of the NBG-418N with the
connection cables.
5 Align the holes on the back of the NBG-418N with the screws on the wall. Hang the NBG-418N on
the screws.
Figure 3 Wall Mounting Example
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NBG-418N User’s Guide

2.1 Overview

This chapter describes how to access the NBG-418N Web Configurator and provides an overview of its screens.
The Web Configurator is an HTML-based management interface that allows easy setup and management of the NBG-418N via Internet browser. Use Internet Explorer 6.0 and later versions, Mozilla Firefox 3 and later versions, or Safari 2.0 and later versions. The recommended screen resolution is 1024 by 768 pixels.
In order to use the Web Configurator you need to allow:
• Web browser pop-up windows from your device. Web pop-up blocking is enabled by default in Windows XP SP (Service Pack) 2.
• JavaScript (enabled by default).
• Java permissions (enabled by default).
CHAPTER 2

The Web Configurator

Refer to Chapter 20 Troubleshooting to see how to make sure these functions are allowed in Internet Explorer.

2.2 Accessing the Web Configurator

1 Make sure your NBG-418N hardware is properly connected and prepare your computer or computer
network to connect to the NBG-418N (refer to the Quick Start Guide).
2 Launch your web browser.
3 Type "http://192.168.1.1" as the website address in your web browser. This is the default LAN IP
address in router mode, the default device mode (192.168.1.2 is the default IP address in non­router mode).
Your computer must be in the same subnet in order to access this website address. In router mode, the NBG-418N can assign your computer an IP address, so you must set your computer to get an IP address automatically (computer factory default) or give it a fixed IP address in the range between
192.168.1.3 and 192.168.1.254 (see the appendices).
4 Type admin (default) as the user name and 1234 (default) as the password and click OK.
NBG-418N User’s Guide 17
Chapter 2 The Web Configurator
Figure 4 Login Screen
Note: The management session automatically times out when the time period set in the
Administrator Inactivity Timer field expires (default five minutes). Simply log back into the NBG-418N if this happens.
5 Select the setup type you want to use.
• Click Go to Wizard Setup to use the Configuration Wizard for basic Internet and Wireless
setup.
• Click Go to Advanced Setup to view and configure all the NBG-418N’s settings.
• Select a language to go to the basic Web Configurator in that language. To change to the
advanced configurator see Chapter 19 on page 139.
Figure 5 Selecting the setup mode
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NBG-418N User’s Guide

2.3 Resetting the NBG-418N

If you forget your password or IP address, or you cannot access the Web Configurator, you will need to use the RESET button at the back of the NBG-418N to reload the factory-default configuration file. This means that you will lose all configurations that you had previously saved, the username will be reset to admin and password will be reset to 1234. The IP address will be reset to “192.168.1.1”.
2.3.1 Using the RESET Button
1 Make sure the power LED is on.
2 Press the RESET button for longer than 1 second to restart/reboot the NBG-418N.
3 Press the RESET button for longer than five seconds to set the NBG-418N back to its factory-
default configurations.
Chapter 2 The Web Configurator
NBG-418N User’s Guide
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Chapter 2 The Web Configurator
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NBG-418N User’s Guide

3.1 Wizard Setup

This chapter provides information on the wizard setup screens in the Web Configurator.
The Web Configurator’s wizard setup helps you configure your device to access the Internet. Refer to your ISP (Internet Service Provider) checklist in the Quick Start Guide to know what to enter in each field. Leave a field blank if you don’t have that information.
1 After you access the NBG-418N Web Configurator, click Go to Wizard setup.
You can click Go to Advanced setup to skip this wizard setup and configure basic or advanced features accordingly.
Figure 6 Select Wizard or Advanced Mode
CHAPTER 3

Connection Wizard

2 Choose a language by clicking on the language’s button. The screen will update. Click the Next
button to proceed to the next screen.
NBG-418N User’s Guide 21
Chapter 3 Connection Wizard
Figure 7 Select a Language
3 Read the on-screen information and click Next.
Figure 8 Welcome to the Connection Wizard

3.2 Connection Wizard: STEP 1: System Information

System Information contains administrative and system-related information.
3.2.1 System Name
System Name is for identification purposes. However, because some ISPs check this name you should enter your computer's "Computer Name".
• In Windows 95/98 click Start > Settings > Control Panel > Network. Click the Identification tab, note the entry for the Computer Name field and enter it as the System Name.
• In Windows 2000, click Start > Settings and Control Panel and then double-click System. Click the Network Identification tab and then the Properties button. Note the entry for the Computer name field and enter it as the System Name.
• In Windows XP, click Start > My Computer > View system information and then click the Computer Name tab. Note the entry in the Full computer name field and enter it as the NBG- 418N System Name.
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NBG-418N User’s Guide
3.2.2 Domain Name
The Domain Name entry is what is propagated to the DHCP clients on the LAN. If you leave this blank, the domain name obtained by DHCP from the ISP is used. While you must enter the host name (System Name) on each individual computer, the domain name can be assigned from the NBG-418N via DHCP.
Click Next to configure the NBG-418N for Internet access.
Figure 9 Wizard Step 1: System Information
Chapter 3 Connection Wizard
The following table describes the labels in this screen.
Table 3 Wizard Step 1: System Information
LABEL DESCRIPTION
System Name System Name is a unique name to identify the NBG-418N in an Ethernet network. Enter a
descriptive name. This name can be up to 30 alphanumeric characters long. Spaces are not allowed, but dashes "-" and underscores "_" are accepted.
Domain Name Type the domain name (if you know it) here. If you leave this field blank, the ISP may
assign a domain name via DHCP. The domain name entered by you is given priority over the ISP assigned domain name.
Back Click Back to display the previous screen. Next Click Next to proceed to the next screen. Exit Click Exit to close the wizard screen without saving.

3.3 Connection Wizard: STEP 2: Wireless LAN

Set up your wireless LAN using the following screen.
NBG-418N User’s Guide
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Chapter 3 Connection Wizard
Figure 10 Wizard Step 2: Wireless LAN
The following table describes the labels in this screen.
Table 4 Wizard Step 2: Wireless LAN
LABEL DESCRIPTION
Name (SSID) Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN.
Security Select a Security level from the drop-down list box.
If you change this field on the NBG-418N, make sure all wireless stations use the same SSID in order to access the network.
Choose None to have no wireless LAN security configured. If you do not enable any wireless security on your NBG-418N, your network is accessible to any wireless networking device that is within range. If you choose this option, skip directly to Section 3.4 on page 25.
Choose WPA-PSK or WPA2-PSK security to configure a Pre-Shared Key. Choose this option only if your wireless clients support WPA-PSK or WPA2-PSK respectively. If you choose this option, skip directly to Section 3.3.1 on page 24.
Channel Selection
Auto Channel Selection
Back Click Back to display the previous screen. Next Click Next to proceed to the next screen. Exit Click Exit to close the wizard screen without saving.
The range of radio frequencies used by IEEE 802.11b/g/n wireless devices is called a channel.
Set the operating frequency/channel depending on your particular region. Select a channel from the drop-down list box. The options vary depending on the frequency band and the country you are in.
This option is only available if Auto Channel Selection is disabled. Select this option for the NBG-418N to automatically choose the channel with the least
interference. Deselect this option if you wish to manually select the channel using the Channel Selection field.
Note: The wireless stations and NBG-418N must use the same SSID, channel ID, WPA-
PSK (if WPA-PSK is enabled) or WPA2-PSK (if WPA2-PSK is enabled) for wireless communication.
3.3.1 WPA-PSK or WPA2-PSK Security
Choose WPA-PSK or WPA2-PSK security in the Wireless LAN setup screen to set up a Pre­Shared Key.
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NBG-418N User’s Guide
Chapter 3 Connection Wizard
Figure 11 Wizard Step 2: WPA-PSK or WPA2-PSK Security
The following table describes the labels in this screen.
Table 5 Wizard Step 2: WPA-PSK or WPA2-PSK Security
LABEL DESCRIPTION
Pre-Shared Key Type from 8 to 63 case-sensitive ASCII characters or 64 HEX characters. You can set up
the most secure wireless connection by configuring WPA in the wireless LAN screens. You need to configure an authentication server to do this.
Back Click Back to display the previous screen. Next Click Next to proceed to the next screen. Exit Click Exit to close the wizard screen without saving.

3.4 Connection Wizard: STEP 3: Internet Configuration

The NBG-418N offers three Internet connection types. They are Ethernet, PPP over Ethernet or PPTP. The wizard attempts to detect which WAN connection type you are using. If the wizard does
not detect a connection type, you must select one from the drop-down list box. Check with your ISP to make sure you use the correct type.
This wizard screen varies according to the connection type that you select.
Figure 12 Wizard Step 3: ISP Parameters.
NBG-418N User’s Guide
25
Chapter 3 Connection Wizard
The following table describes the labels in this screen,
Table 6 Wizard Step 3: ISP Parameters
CONNECTION TYPE DESCRIPTION
Ethernet Select the Ethernet option when the WAN port is used as a regular Ethernet. PPPoE Select the PPP over Ethernet option for a dial-up connection. If your ISP gave
PPTP Select the PPTP option for a dial-up connection.
you an IP address and/or subnet mask, then select PPTP.
3.4.1 Ethernet Connection
Choose Ethernet when the WAN port is used as a regular Ethernet. Continue to Section 3.4.4 on
page 28.
Figure 13 Wizard Step 3: Ethernet Connection
3.4.2 PPPoE Connection
Point-to-Point Protocol over Ethernet (PPPoE) functions as a dial-up connection. PPPoE is an IETF (Internet Engineering Task Force) standard specifying how a host personal computer interacts with a broadband modem (for example DSL, cable, wireless, etc.) to achieve access to high-speed data networks.
For the service provider, PPPoE offers an access and authentication method that works with existing access control systems (for instance, RADIUS).
One of the benefits of PPPoE is the ability to let end users access one of multiple network services, a function known as dynamic service selection. This enables the service provider to easily create and offer new IP services for specific users.
Operationally, PPPoE saves significant effort for both the subscriber and the ISP/carrier, as it requires no specific configuration of the broadband modem at the subscriber’s site.
By implementing PPPoE directly on the NBG-418N (rather than individual computers), the computers on the LAN do not need PPPoE software installed, since the NBG-418N does that part of the task. Furthermore, with NAT, all of the LAN's computers will have Internet access.
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Figure 14 Wizard Step 3: PPPoE Connection
The following table describes the labels in this screen.
Table 7 Wizard Step 3: PPPoE Connection
LABEL DESCRIPTION
ISP Parameter for Internet Access Connection Type Select the PPP over Ethernet option for a dial-up connection. Service Name Type the name of your service provider. User Name Type the user name given to you by your ISP. Password Type the password associated with the user name above. Back Click Back to return to the previous screen. Next Click Next to continue. Exit Click Exit to close the wizard screen without saving.
Chapter 3 Connection Wizard
3.4.3 PPTP Connection
Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables transfers of data from a remote client to a private server, creating a Virtual Private Network (VPN) using TCP/IP-based networks.
PPTP supports on-demand, multi-protocol, and virtual private networking over public networks, such as the Internet.
Refer to the appendix for more information on PPTP.
Note: The NBG-418N supports one PPTP server connection at any given time.
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Chapter 3 Connection Wizard
Figure 15 Wizard Step 3: PPTP Connection
The following table describes the fields in this screen
Table 8 Wizard Step 3: PPTP Connection
LABEL DESCRIPTION
ISP Parameters for Internet Access Connection Type Select PPTP from the drop-down list box. To configure a PPTP client, you must
User Name Type the user name given to you by your ISP. Password Type the password associated with the User Name above. PPTP Configuration Server IP Address Type the IP address of the PPTP server. Get automatically
from ISP Use fixed IP address Select this radio button, provided by your ISP to give the NBG-418N a fixed, unique IP
My IP Address Type the (static) IP address assigned to you by your ISP. My IP Subnet
Mask My IP Gateway Type the gateway IP address assigned to you by your ISP (if given).
Back Click Back to return to the previous screen. Next Click Next to continue. Exit Click Exit to close the wizard screen without saving.
configure the User Name and Password fields for a PPP connection and the PPTP parameters for a PPTP connection.
Select this radio button if your ISP did not assign you a fixed IP address.
address.
Type the subnet mask assigned to you by your ISP (if given).
3.4.4 Your IP Address
The following wizard screen allows you to assign a fixed IP address or give the NBG-418N an automatically assigned IP address depending on your ISP.
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Figure 16 Wizard Step 3: Your IP Address
The following table describes the labels in this screen
Table 9 Wizard Step 3: Your IP Address
LABEL DESCRIPTION
Get automatically from your ISP
Use fixed IP address provided by your ISP
Back Click Back to return to the previous screen. Next Click Next to continue. Exit Click Exit to close the wizard screen without saving.
Select this option If your ISP did not assign you a fixed IP address. This is the default selection. If you choose this option, skip directly to Section 3.4.9 on page
31.
Select this option if you were given IP address and/or DNS server settings by the ISP. The fixed IP address should be in the same subnet as your broadband modem or router.
Chapter 3 Connection Wizard
3.4.5 WAN IP Address Assignment
Every computer on the Internet must have a unique IP address. If your networks are isolated from the Internet, for instance, only between your two branch offices, you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks.
Table 10 Private IP Address Ranges
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
You can obtain your IP address from the IANA, from an ISP or have it assigned by a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, you should consult your network administrator for the appropriate IP addresses.
Note: Regardless of your particular situation, do not create an arbitrary IP address;
always follow the guidelines above. For more information on address assignment, please refer to RFC 1597, Address Allocation for Private Internets and RFC 1466, Guidelines for Management of IP Address Space.
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Chapter 3 Connection Wizard
3.4.6 IP Address and Subnet Mask
Similar to the way houses on a street share a common street name, so too do computers on a LAN share one common network number.
Where you obtain your network number depends on your particular situation. If the ISP or your network administrator assigns you a block of registered IP addresses, follow their instructions in selecting the IP addresses and the subnet mask.
If the ISP did not explicitly give you an IP network number, then most likely you have a single user account and the ISP will assign you a dynamic IP address when the connection is established. The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for private use; please do not use any other number unless you are told otherwise. Let's say you select
192.168.1.0 as the network number; which covers 254 individual addresses, from 192.168.1.1 to
192.168.1.254 (zero and 255 are reserved). In other words, the first three numbers specify the
network number while the last number identifies an individual computer on that network.
Once you have decided on the network number, pick an IP address that is easy to remember, for instance, 192.168.1.1, for your NBG-418N, but make sure that no other device on your network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your NBG-418N will compute the subnet mask automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the NBG-418N unless you are instructed to do otherwise.
3.4.7 DNS Server Address Assignment
Use DNS (Domain Name System) to map a domain name to its corresponding IP address and vice versa, for instance, the IP address of www.zyxel.com is 204.217.0.2. The DNS server is extremely important because without it, you must know the IP address of a computer before you can access it.
The NBG-418N can get the DNS server addresses in the following ways.
1 The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you
sign up. If your ISP gives you DNS server addresses, enter them in the DNS Server fields in the Wizard and/or WAN > Internet Connection screen.
2 If the ISP did not give you DNS server information, leave the DNS Server fields set to 0.0.0.0 in
the Wizard screen and/or set to From ISP in the WAN > Internet Connection screen for the ISP to dynamically assign the DNS server IP addresses.
3.4.8 WAN IP and DNS Server Address Assignment
The following wizard screen allows you to assign a fixed WAN IP address and DNS server addresses.
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