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user’s guide. However, we are not liable for the inaccuracies or errors in this guide.
Please use with caution. All information is subject to change without notice
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The G.DUO is a dual radio wireless multi-function device based on IEEE 802.11g/b 2.4GHz
radio technologies. It features 2 WiFi radios for WISP and other applications that can not
be achieved using single radio. In addition, it features passive PoE port for installations in
places that have no nearby access to electricity (DC Injector is not included). Finally, it
also comes with a WAN port and Gateway+AP mode that can turn G.DUO into a wireless
router with 2 radios.
If you encounter any technical issues, we strongly recommend you read through Chapter 12:
Frequent Asked Questions. The answers you need are very likely to be there.
1.2 Firmware Upgrade and Tech Support
If you encounter a technical issue that can not be resolved by information on this guide, we
recommend that you visit our comprehensive website support at www.airlive.com. The
tech support FAQ are frequently updated with latest information.
In addition, you might find new firmwares that either increase software functions or provide
bug fixes for G.DUO. You can reach our on-line support center at the following link:
http://www.airlive.com/support/support_2.jsp
Since 2009, AirLive has added the “Newsletter Instant Support System” on our website.
AirLive Newsletter subscribers receives instant email notifications when there are new
download or tech support FAQ updates for their subscribed airlive models. To become an
AirLive newsletter member, please visit: http://www.airlive.com/member/member_3.jsp
Passive PoE Port for 12V Passive POE System. Passive DC Injector not included
1 x WAN port for xDSL and Cable Modem.
Wall Mount holes included
Bandwidth Control
Site Survey and Signal Strength indicator for antenna alignment
Emergency firmware recovery mode
Web, HTTPS, SSH/SSH2, Telnet, and SNMP managements
1.4 Wireless Operation Modes
The G.DUO can perform as a multi-function wireless device. Through the AirLogic web
interface, users can easily select which wireless mode they wish the G.DUO to perform.
The G.DUO can be configured to operate in the following wireless operation modes:
1.4.1 WISP + AP Mode
This mode is designed as 2-way wireless router for WISP subscriber. Radio1 acts as a
client router to connect with outdoor AP; Radio1 works as a wireless AP for home. This
combination allows WISP subscriber to share their Internet connection wirelessly.
AirLive G.DUO User’s Manual
2
1. Introduction
1.4.2 Client + AP mode
In this mode, Radio1 is working as a wireless client to connect with remote AP. Radio2 is
working as an Access Point to redistribute the signal from Radio1. This combination
creates a wireless repeater with 2 radios. It can be used to amplify the signal from remote
AP.
1.4.3 Dual AP Mode
In this mode, the G.DUO works as 2 Access Points. You can have both radios with
directional antennas to create a larger coverage. Please remember to set the channels of
the radios as far apart as possible.
1.4.4 Gateway + AP
In this mode, both Radios are acting as wireless router. The WAN port is the LAN1 port.
The application for this is to extend the wireless router’s coverage. You can use 2
directional antennas to provide longer distance and wider coverage over large area, such
as in the shopping center. When using this mode, it is recommended to use directional
antennas for both radios to avoid mutual interference.
3 AirLive G.DUO User’s Manual
1. Introduction
1.4.5 WDS + AP
In this mode, the Radio1 is working in WDS Bridge mode while Radio2 works as an Access
Point. This mode is design to build a wireless backbone network while providing hotspot
access through Radio2’s AP network. It is ideal for Hotel Installation. When using this
mode, please make sure that the channels are set apart between Radio1 and Radio2.
Radio1 should install with directional antenna.
AirLive G.DUO User’s Manual
4
2. Install the G.DUO
2. Installing the G.DUO
2
This section describes the hardware features and the hardware installation procedure for
the G.DUO. For software configuration, please go to chapter 3 for more details.
2.1 Before You Start
It is important to read through this section before you install the G.DUO
It is recommended that you set the channels of the 2 radios as apart as possible
to avoid mutual interference. For example, Radio1 at channel 1 and Radio2 at
Channel 11
It is recommended that you adjust the antenna angles to get the best
performance. You can try to move the antenna outward as indicated on the
diagram below if you encounter poor performance problem.
The LAN1 port also work as the passive POE port and the WAN port(Gateway
mode only)
The passive PoE DC Injector is optional, it is not included with the package.
Please use a 12V passive POE system with G.DUO’s passive POE port. Do not
use 802.3af 48V system or PoE switch with the device.
2.2 Package Content
The G.DUO package contains the following items:
One G.DUO main unit
One 12V 1A DC power adapter
2 x Antennas (subject to change without notice)
User’s Guide CD
5 AirLive G.DUO User’s Manual
Quick Start Guide
2.3 Knowing your G.DUO
Below are descriptions and diagrams of the product:
2. Install the G.DUO
1
5
3
2
6
4
Radio 1 Antenna Connector
1
Radio 2 Antenna Connector
2
3
Power Adapter Connector
4
LAN Ports
5
WAN + Passive PoE Port
6
Reset Button
LED Indicators
7
AirLive G.DUO User’s Manual
6
2. Install the G.DUO
2.4 Hardware Installation
.1. Please install the antennas by turning clock wise into the RF1 and RF2 antenna connectors
2. Now connect the power adapter to the G.DUO
3. Connect the Ethernet cable to one of the LAN port and the other end to your PC.
7 AirLive G.DUO User’s Manual
2. Install the G.DUO
4. If you are using G.DUO in Gateway mode to share your xDSL or Cable modem connection,
please connect the Internet cable to “WAN port”.
2.4.1 Passive PoE Installation
If you want to supply the power by using Passive PoE, please follow the installation
diagram below. Please note that that the passive DC Injector is not included with G.DUO,
it need to be purchased separately. G.DUO uses 12V passive PoE system.
AirLive G.DUO User’s Manual
8
2. Install the G.DUO
2.4.2 Wall Mount Installation
1. The holes for the wall mount screw are on the underside of the case. Please measure the
distance between the holes. Then install 2 screws in the desire location with the measured
distance apart from each other. Please do not screw all the way in, leave some space for
mounting with the G.DUO
2. Now please hang the G.DUO on those 2 screws.
9 AirLive G.DUO User’s Manual
2. Install the G.DUO
2.5 LED Table
This section describes the LED behavior of G.DUO. You can find the LED on the top side
of the G.DUO.
Power
Steady Blue – Normal Operation
OFF – No Power
RF1, RF2
Slow Flashing : Radio is active
Fast Flashing: Transmitting Data
OFF: Radio Disabled
LAN1 ~4, WAN
Steady Blue : Link established
Fast Flashing: Transmitting Data
OFF: No Link
2.6 Restore Settings to Default
If you have forgotten your G.DUO’s IP address or password, you can restore your G.DUO
to the default settings by pressing on the “reset button” for more than 5 seconds. You
might need a pen or pencil for this operation. The reset button is inside the bottom case.
Please see diagram below for details.
AirLive G.DUO User’s Manual
10
3. Configuring the G.DUO
3. Configuring the G.DUO
3
The G.DUO offers many different types of management interface. You can configure
through standard web browser (http), secured web (https), command line (telnet), secured
command shell (SSH), and SNMP management. In this chapter, we will explain G.DUO’s
available management interfaces and how to get into them.
3.1 Important Information
The following information will help you to get start quickly. However, we recommend you
to read through the entire manual before you start. Please note the password and SSID
are case sensitive.
The default IP address is: 192.168.1.254 Subnet Mask: 255.255.255.0
There is no password protection by default. To enable password protection,
please go to “System Configuration -> Password Settings”.
The default SSID for Radio1 is “airlive1”
The default SSID for Radio2 is “airlive2”
The default wireless mode is : WISP + AP mode
Please remember to “Apply Change” for settings to be saved and take effect.
Please remember to “Reboot” the device after all settings are changed.
Please keep the TX output power as low as possible for best performance.
By default, the Telnet and SSH functions are turned off. To enable them, please
go to “System Configuration” -> “System Management” menu.
The Emergency Firmware Recovery only works when you connect to LAN2, LAN3,
or LAN4 port. It will not work on LAN1
By Default, the DHCP server is turned on in WISP+AP and Gateway+AP mode.
The other modes’ DHCP server are turned off.
When you change the mode to WISP+AP or Gateway+AP mode, the GDUO’s IP
address might change to 192.168.1.254.
.
11 AirLive G.DUO User’s Manual
3. Configuring the G.DUO
3.2 Prepare your PC
The G.DUO can be managed remotely by a PC through either the wired or wireless network.
The default IP address of the G.DUO is 192.168.1.254 with a subnet mask of
255.255.255.0. This means the IP address of the PC should be in the range of
192.168.1.1` to 192.168.1.253.
To prepare your PC for management with the G.DUO, please do the following:
1. Connect your PC directly to the LAN port on the DC Injector of G.DUO
2. Set your PC’s IP address to “Obtain an IP address Automatically”. The G.DUO should
provide your PC an valid IP address.
3. If you want to set your PC’s IP address manually, please set to 192.168.1.50 (or other
address in the same subnet)
50
You are ready now to configure the G.DUO using your PC.
3.3 Management Interface
The G.DUO can be configured using one the management interfaces below:
Web Management (HTTP): You can manage G.DUO by simply typing its IP address
in the web browser. Most functions of G.DUO can be accessed by web management
interface. We recommend using this interface for initial configurations. To begin,
simply enter G.DUO’s IP address (default is 192.168.1.254) on the web browser..
AirLive G.DUO User’s Manual
12
3. Configuring the G.DUO
Secured Web Management (HTTPS): HTTPS is also using web browser for
configuration. But all the data transactions are securely encrypted using SSL
encryption. Therefore, it is a safe and easy way to manage your G.DUO. We highly
recommend WISP and service provider to use HTTPS for management.
To begin, simply enter https://192.168.1.254 on your web browser. A security alert
screen from your browser might pop up. Please grant all permission and get
certificate to G.DUO.
Command Line Interface (Telnet): G.DUO can be managed through the
command line interface (CLI). Telnet does not encrypt its message. Therefore, it
is not secure. The default Telnet management port is TCP port 23.
By default, the G.DUO’s Telnet interface is turned off. To enable it, please go to
“System Configuration -> System Management” menu and enable “Telnet”.
To use the CLI, please open the command line window. Then type “telnet
192.168.1.254” to start.
Telnet 192.168.1.254
To get a list of available command and their usage, please type “help” on the
command prompt.
Secure Shell (SSH, SSH2): SSH is an encrypted Command Line Interface that
allow user to send text commands through SSL encryption. Therefore, it provides
the added advantage of security comparing to Telnet. The default management
port for SSH/SSH2 is TCP/UDP port 22.
By default, the G.DUO’s SSH/SSH2 interface is turned off. To enable it, please go to
“System Configuration -> System Management” menu and enable “SSH”.
To manage via the SSH/SSH2 protocol, you would need a SSH client. Free SSH
clients are widely available on the Internet. You can find where to download them
by using Internet search engine such as Google. In this guide, we will use a
popular SSH/Telnet utility call Putty.
Once you have download and install Putty. Please follow the figure below to make
a connection with G.DUO:
1. Choose “SSH” as indicated in the diagram
13 AirLive G.DUO User’s Manual
3. Configuring the G.DUO
2. Enter the IP address of G.DUO
3. Click on “Open” to start the SSH session.
2
1
When the following screen appear, click on “Yes” to continue
If you have set up password, please enter your login and password. If not, you will
enter the command prompt directly. Now you are ready to enter commands
To get a list of available command and their usage, please type “help” on the
command prompt.
AirLive G.DUO User’s Manual
14
3. Configuring the G.DUO
3.4 Introduction to Web Management
The G.DUO offers both normal (http) and secured (https) Web Management interfaces.
Their share the same interface and functions, and they can both be accessed through web
browsers. The only difference is HTTPS data are encrypted for extra security. Therefore,
we will discuss them together as “Web Management” on this guide.
If you are placing the G.DUO behind router or firewall, you might need to open virtual server
ports to G.DUO on your firewall/router
HTTP: TCP Port 80
HTTPS: TCP/UDP Port 443
This procedure is not necessary in most cases unless there is a router/firewall between
your PC and G.DUO.
3.4.1 Getting into Web Management
Normal Web Management (HTTP)
To get into the Normal Web Management, simply type in the G.DUO’s IP address (default IP
is 192.168.1.254) into the web browser’s address field.
Secured Web Management (HTTPS)
To get into the Secured Web Management, just type “https://192.168.1.254 ” into the web
browser’s address field. The “192.168.1.254” is G.DUO’s default IP address. If the IP
address is changed, the address entered in the browser should change also.
A security warning screen from your browser will then pop-up depending on the browser
you use. Please follow step below to clear the security screen.
Internet Explorer: Select “Yes” to proceed
15 AirLive G.DUO User’s Manual
Firefox:
3. Configuring the G.DUO
1. Select “or you can add an exception”
1
2. Click on “Add Exception”
AirLive G.DUO User’s Manual
2
16
3. Configuring the G.DUO
3. Click on “Get Certificate”. Then, please enter G.DUO’s IP address. Finally,
please click on “Confirm Security Exception.”
3
4
3.4.2 Web Menu Structure
After you enter the Web configuration, the following screen will appear:
Wireless Settings
Language Selection
Wireless Settings: The G.DUO’s wireless settings are different between wireless
modes. Only functions that are applicable to the wireless mode will show to
simplify configuration. For this reason, the first step to configure the G.DUO is to
select the wireless mode. The router mode specific functions are also in this
17 AirLive G.DUO User’s Manual
3. Configuring the G.DUO
menu category. For explanation of different wireless modes, please refer to
Chapter 1.
System Configuration: All non-wireless and router mode settings are in this
category. The system configurations including changing password, upload
firmware, backup configuration, settings PING watchdog, and setting management
interface. We recommend you should enable password protection during the first
time login.
Device Status: This section for monitoring the status of G.DUO. It provides
information on device status, Ethernet status, wireless status, wireless client table,
and system log.
Language Selection: You can change the language for the Web interface from
here.
3.5 Initial Configurations
We recommend users to browse through G.DUO’s web management interface to get an
overall picture of the functions and interface. Below are the recommended initial
configurations for first time login:
3.5.1 Choose the wireless Operation Modes
The wireless settings of G.DUO are dependant on the wireless operation mode you choose.
Therefore, the first step is to choose the operation mode. For explanation on when to use
what operation mode, please refer to Chapter 1
Mode Diagram
Current Mode
AirLive G.DUO User’s Manual
Click to configure wireless settings
18
3. Configuring the G.DUO
Mode Diagram: this shows you the operation flow between Radio1, Radio2, and the
LAN/WAN ports. It helps you to understand how the mode works.
Current Mode: The active setup button indicates the current operation mode. When
you press the “Setup Button”, it will bring you to the wireless setting page.
Changing Mode:
Follow the example below to change to “Gateway+AP” mode
1. Select “Gateway + AP” mode.
2. Click on “Setup Button” button
3. The AP might ask you to confirm the mode change. Once confirm, the AP will
reboot to its new mode.
1
2
3.5.2 Change the Device’s IP Address
The default IP address is at 192.168.1.254. You should change it to the same subnet as
your network. Also, if you want to manage G.DUO remotely, you have to set the Gateway
and DNS server information.
To setup the IP settings for G.DUO, please select “System Configuration” -> LAN Interface
Setup”. After entering the IP information, click on “Apply” to finish.
19 AirLive G.DUO User’s Manual
3. Configuring the G.DUO
1
2
3
3.5.3 Enable Password Protection
The G.DUO’s password protection is turned off by default. You should enable it and set
your own password. To enable password protection, please go to “System Configuration”
-> “Password Settings” menu. Then enter your username and password, and click on
“Apply Change” button. You can also come to this menu to change your password in the
future.
3.5.4 Enable Telnet or SSH
The Telnet and SSH management interface are turned off by default. If you wish to use
them, please go to the “System Configuration -> System Management” menu. Check
“Telnet” or “SSH”, then click on “Apply Change” button.
AirLive G.DUO User’s Manual
20
3. Configuring the G.DUO
21 AirLive G.DUO User’s Manual
4. WISP + AP Mode
4. WISP + AP Mode
4
In this chapter, we will explain about the wireless settings for WISP+AP Mode. Please be
sure to read through Chapter 1.4 and Chapter 3’s “Introduction to Web Management” and
“Initial Configurations” first.
4.1 Application for WISP+AP Mode
This mode is designed for WISP subscriber to have both Internet connection to WISP AP
and wireless network for home. Radio1 acts as a client router to connect with outdoor AP;
Radio1 works as a wireless AP for home. This combination allows WISP subscriber to
share their Internet connection wirelessly. In this mode, the WAN on the Radio1 side.
AirLive G.DUO User’s Manual
22
4. WISP + AP Mode
4.2 Step-by-Step Example
In this example, we will use a G.DUO to establish a connection service to the WISP outdoor
AP
SSID: OutdoorAP
Encryption: WPA-PSK
4.2.1 Environment
In this example, the G.DUO will be connecting to the Outdoor AP using Radio1. Radio1
will be running in WISP mode which is also known as “Client Router”. Radio 2 will be
running in AP mode to share the WISP connection wirelessly to the notebook PC.
The configuration procedure should be as followed:
1. Configure Radio1 first.
2. Use “Site Survey” function to find the Outdoor AP and adjust antenna alignment
using “Signal Survey” function
3. Use “Site Survey” to establish connection and enter encryption key with Outdoor
AP
4. Configure the WAN type for the Radio1 to the Outdoor AP
5. Enable the “Remote Management” so WISP operator can manage the AP from
remote
6. Configure Radio2 now
7. You should be able to keep default settings for most of the Radio2’s function
8. But you need to change the channel of Radio2 so it is as far apart from Radio1 as
possible.
9. Set Encryption for Radio2.
10. You should be able to link the Notebook PC to “airlive2” SSID and enter the
correct encryption key.
23 AirLive G.DUO User’s Manual
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