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ICE D-20 EC506 Wireless Broadband Gateway
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Safety Precautions
Please read the safety precautions carefully to ensure the correct and safe use of your
wireless device.
Do not switch your wireless device on when the use of wireless devices is
prohibited or when the wireless device may cause interference or danger.
Do not use your wireless device while driving.
Follow relevant rules or regulations in hospitals and health care facilities.
Switch your wireless device off near medical devices.
Switch your wireless device off in aircraft. The radio signal from it may cause
interference to control signals of the aircraft.
Switch your wireless device off near high-precision electronic devices. It may
affect the performance of these devices.
Do not attempt to disassemble your wireless device or its accessories. Only
qualified personnel may service or repair the wireless device.
Do not place your wireless device and its accessories in containers with strong
electromagnetic field.
Do not place magnetic storage media near your wireless device. Radiation
from the wireless device may erase the information stored on them.
Do not put your wireless device in a high-temperature place or use it in a place
with flammable gas such as a gas station.
Keep your wireless device and its accessories away from children. Do not
allow children to use your wireless device without guidance.
Observe any laws or regulations on the use of wireless device. Respect others’
privacy and legal rights when using your wireless device.
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Table of Contents
Table of Contents
Chapter 1 Overview....................................................................................................................... 1-1
1.1.1 Product Description................................................................................................. 1-1
1.1.2 Features .................................................................................................................. 1-1
1.2 System Description............................................................................................................ 1-2
1.2.1 Appearance............................................................................................................. 1-2
1.2.2 Description of Hardware Specification.................................................................... 1-3
1.2.4 Interface Attributes.................................................................................................. 1-4
2.2 Introduction to the Install Procedure.................................................................................. 2-2
2.2.2 Connecting to PC.................................................................................................... 2-3
2.4.1 Starting the Program............................................................................................... 2-7
Chapter 3 Query and Configuration of D-20............................................................................... 3-1
3.2 Querying the Status........................................................................................................... 3-1
3.2.1 Querying the Configuration Information of LAN...................................................... 3-1
3.3.1 Configuring LAN...................................................................................................... 3-3
3.4 Networking Example........................................................................................................ 3-16
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3.4.3 Configuring Device................................................................................................ 3-17
4.1 Troubleshooting................................................................................................................. 4-1
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Chapter 1 Overview
1.1 Introduction
1.1.1 Product Description
ICE D-20 is a third generation (3G) wireless broadband gateway for household users
and small office home office (SOHO) users. With D-20, your terminal device (personal
computer) can access the Internet through a code division multiple access (CDMA2000)
network.
D-20 provides the following interfaces:
z
A high-speed CDMA2000 1x EV-DO interface to the wide area network (WAN)
side: used for accessing the 3G broadband radio packet network
Four Ethernet interfaces to the local area network (LAN): for LAN networking
A wireless local area network (WLAN) interface (optional)
z
z
D-20 enables you to not only create a LAN easily, but also access the Internet through
a wireless connection.
As a 3G network terminal, D-20 provides the following functions:
z
z
z
z
z
z
z
High-speed 3G network access
Perfect HOME/SOHO cable networking
Receive diversity and large coverage
Built-in DHCP server, DNS Relay and NAT
Web-based management and configuration
Desktop or wall-mounted installation
AP function for WLAN networking (optional)
1.1.2 Features
D-20 functions between the user terminal devices and the network devices. It provides
3G wireless broadband access by connecting the CDMA2000 1x EV-DO interface with
the packet data serving node (PDSN) on the network side. It also provides four local
Ethernet interfaces and WLAN interface (optional) for wired/wireless networking.
Figure 1-1 shows the position of the D-20 in a 3G network.
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WLAN or
Ethernet
CDMA2000
1x EVDO
PC
D-20
BTS
BSC
PDSN/FA
HA
IP
Backbone
Internet
Figure 1-1 The position of D-20 in the 3G network
D-20 adopts the user-friendly WEB graphical management interface, making it ease to
use. It is suitable for not only small enterprises, but also the household and SOHO
users.
Table 1-1 The basic features of D-20
Item
Specification
WAN: CDMA2000 1x Rel A
CDMA2000 1x EV-DO Rel 0
Ethernet: IEEE 802.3
Standard
IEEE 802.3u
WLAN: IEEE 802.11b
IEEE 802.11g
Working
frequency
450MHz frequency segment
CDMA2000 1x Rel A
Upstream ratio: 153.6 kbit/s
Downstream ratio: 153.6 kbit/s
Data
service
Upstream ratio: 153.6 kbit/s
Downstream ratio: 2.4 Mbit/s
CDMA2000 1x EV-DO Rel 0
Ethernet
interface
10/100 Mbit/s auto-sensing ratio
IEEE 802.11b: 11 Mbit/s, 5.5 Mbit/s, 2 Mbit/s, and 1 Mbit/s are
supported
WLAN
interface
IEEE 802.11g: 54 Mbit/s, 48 Mbit/s, 36 Mbit/s, 24 Mbit/s, 18 Mbit/s, 12
Mbit/s, 9 Mbit/s, and 6 Mbit/s are supported
(optional)
1.2 System Description
1.2.1 Appearance
Figure 1-2 shows the appearance of D-20.
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Figure 1-2 Profile of D-20
1.2.2 Description of Hardware Specification
Table 1-2 Hardware specification of D-20
Item
Specification
Four Ethernet interfaces of 10/100base-TX
Physical
interface
One DC power interface
Interface
CDMA2000 1x EV-DO interface
Wireless
interface
WLAN interface conforming to the IEEE 802.11b/g
standard
The maximum power
10 W
Input: 100 V to 240 V AC
Output: 18 V DC/1.1 A, windage: < 10%
220 mm × 180 mm × 35 mm
< 500 g (excluding the power adapter)
AC/DC power module
(external)
Dimension (L × W × D)
Weight
Operating Environment
temperature
-10°C to +45°C
Operating Environment
relative humidity
5% to 95% non-condensing
1.2.3 Description of the Buttons and Indicators
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Table 1-3 Description of the buttons and indicators
Item
Description
Switch the gateway on/off.
Power
(ON/OFF)
Button
Press and hold (10 seconds or more) to restore the factory
settings.
Reset
Blinking (5 Hz)
On
The device is self-testing.
D-20 is turned on.
POWER
WAN
Green
Green
Green
Blinking (5 Hz)
The data is being transferred.
(3G
network)
The PPP connection has been
created.
On
Blinking (5 Hz)
On
The data is being transferred.
WLAN is available.
WLAN
(optional)
Indicator
The Ethernet connection has
been created.
On
1/2/3/4
The network is working in the
10 Mbit/s mode.
Green
Blinking (3 Hz)
Blinking (12 Hz)
(Ethernet
interface)
The network is working in the
100 Mbit/s mode.
SIGNAL
STRENG
TH
Green 5 CDMA network signal indicators.
1.2.4 Interface Attributes
Table 1-4 The interface attributes of D-20
Interface
Quantity
Connector
Description
10/100Base-TX
10/100 Mbit/s auto-sensing
MDI/MDIX auto-sensing
Ethernet
Interface
4
RJ-45
IEEE802.3/802.3u is compatible
Up to 54 Mbit/s is supported
Wireless
connection
WLAN
CDMA
1
1
Conforming to the IEEE 802.11b/g
standard (optional)
Max. transmission power: >= 25 dBm
Receiving sensibility: < -104 dBm
Wireless
connection
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Chapter 2 Installation and Startup of D-20
2.1 Preparation
Before using D-20, ensure that your location is covered within CDMA2000 3G network
(consult your local network operator). You have to choose those network operators with
the CDMA2000 3G-network coverage.
The D-20 provides four Ethernet interfaces. If more than four PCs have to be
connected with D-20 by cable, prepare a hub or an Ethernet switch to expand the
Ethernet interfaces.
D-20 supports wireless access. To connect a PC to a D-20 through WLAN, equip your
PC with a wireless network card first.
2.1.1 Checking the Packing List
lists the devices of D-20.
Table 2-1 The packing list of D-20
Item
D-20 host
Quantity
Description
1
1
1
-
Power adapter
Power cable
18 V AC/DC power adapter
3 m
Vehicle
power cable
mounted
1
Optional
Ethernet cable
Quick Start
1
1
1
3 m
Hard copy
CD
User Manual
Note:
This is for your reference only.
2.1.2 Basic Installation Principles
The required environment:
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z
z
Keep enough space around D-20 for the heat emission.
When installing it on the wall, fix the D-20 and power adapter well in case of falling.
Hole of hook
70mm
D-20
Figure 2-1 Wall-mounted installation
z
z
To ensure the signal strength of a CDMA network, install the devices near the
window.
Keep the antenna away from metal materials. Otherwise, the receiving effect will
be affected.
2.1.3 Computer Configuration Requirements
To use D-20, the following computer configurations are recommended.
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z
z
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Memory: 256 MB RAM or above
Hard disk: 50 MB free space
Operating system: Windows XP or Windows 2000
Internet Explorer: Microsoft Internet Explorer 6.0
Note:
If the Internet Explorer version is earlier than the recommended one, it will affect the
normal configuration of D-20.
2.2 Introduction to the Install Procedure
Figure 2-2 shows the install procedures of D-20 and relative devices.
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Antenne
Internett
Innstikk for
Str mbryter Tilbakestill str mtilkopling tilkny tning
1
2
3
4
Str madapter
Ethernet tilkopling
Ethernet kabel
Monitor
Figure 2-2 The schematic drawing of installation
2.2.1 Connecting to the Power
Connect the power adapter with the power socket and the power interface of D-20
respectively. The power input of D-20 is 18 V DC power. To ensure safe use, use the
power adapter provided or approved by ICE only.
2.2.2 Connecting to PC
Connect the Ethernet interface of the PC and that of D-20 with the delivery-attached or
prepared Ethernet cable preferentially. The Ethernet interface of D-20 is an adaptive
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interface. Thus, crossover network cable and the standard network cable are both
supported.
Note:
The length of the Ethernet cable used for connecting the PC and LAN cannot exceed
100 m.
2.3 Introduction to the Computer Configuration
The user PC configuration requirements are listed as follows.
I. Make sure an Ethernet network card or a wireless network card has been
installed on your PC and the TCP/IP protocol has been started on the
operating system.
II. Install the Web browser. Microsoft Internet Explorer 6.0 or the higher
version is recommended.
III. Configure the PC to obtain an IP address automatically.
1) Right-click My Network Places and select Properties to display the Local Area
Figure 2-3 My Network Places Properties
2) Right-click Local Area Connection and select Properties form the shortcut
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Figure 2-4 Local Area Connection
Caution:
You should configure the available connections to D-20, and take Local Area
Connection as an example.
3) Select Internet Protocol (TCP/IP) in the This connection uses the following
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Figure 2-5 Local Area Connection Properties
4) Select Obtain an IP address automatically and Obtain DNS server address
automatically in the Internet Protocol (TCP/IP) Properties dialog box, and then
Figure 2-6 Internet Protocol (TCP/IP) Properties
Caution:
z
z
Window XP operating system is taken for an example in the preceding descriptions.
For other operating systems, the configuration interface and configuration method
may be slightly different.
The Internet Explorer applies the default configuration. If the default configuration is
changed, the configuration function of D-20 will be affected.
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2.4 Introduction to Program Startup
2.4.1 Starting the Program
After starting D-20, open the Web browser on a PC connected to D-20. Enter
http://192.168.1.1 (the default address of D-20 wireless broadband gateway) in the
address bar of the browser and then press the Enter key to display the WIRELESS
BROADBAND GATEWAY LOGIN page of D-20. Users can choose different user IDs
Figure 2-7 The login of the Web administrator
D-20 supports two types of users to log in.
z
z
Admin account: The administrator can view and change the configurations.
User account: The common users can only view the basic information.
Note:
z
z
To avoid configurations confliction, only one host can log in to the Web configuration
page of D-20 at the same time.
If you change the default device address 192.168.1.1 when configuring D-20, you
need to enter the new device address when logging in to the gateway configuration
page.
2.4.2 Introduction to the Configuration Page
I. The Configuration Page
After logging in as the administrator, you can see the configuration page of D-20. See
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Figure 2-8 The configuration page of D-20
The window is divided into four parts.
z
The operation navigation area listing three main functions: query information
(Basic), set parameters (Advanced) and quit the management program
(Logout).
z
z
z
User operation area: View the gateway information and set parameters.
Help information area: Display the help information.
Signal display area: Display the network connection information and network
Table 2-2 Description of signal display
Description
Signal
Green
Red
The PPP connection is The PPP connection has
WAN
3G
created.
not been created yet.
The 3G network has not
been found.
The 3G network is found.
The signal strength from
weak to strong:
Network signal strength
-
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II. The Operation navigation Area
There are three buttons in the operating navigating area of D-20.
z
The Basic navigation button: To guide the user into the information querying page.
By selecting different tabs in the user operation area, you can view the
configuration information of LAN/WAN, the traffic statistic information and the
system version information.
z
z
The Advanced navigation button: To guide the user into the configuration page.
You can set the parameters of LAN/WLAN and WAN, change the user password,
update the software of D-20, restore the factory settings and restart D-20.
The Logout button: Click this button to quit the D-20 configuration management
page.
Caution:
To quit the D-20 configuration management page, click Logout. If you click
of the
browser to close this page directly, the configuration management function of D-20 will
be affected.
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Chapter 3 Query and Configuration of D-20
3.1 Introduction
The configuration management program of D-20 provides the functions of querying the
gateway status and setting the parameters. With D-20, you can construct a network
flexibly, manage the computers in the network, control the scale of the network and
query the traffic information of the network.
3.2 Querying the Status
D-20 provides the function of querying the configuration of LAN/WAN, the traffic
statistic and the system version information.
3.2.1 Querying the Configuration Information of LAN
After the login to D-20, follow these steps to display the LAN information querying page.
1) Click Basic in the operation navigation area.
2) Select the LAN tab in the user operation area to display the configuration
information of LAN and the automatic IP address distribution information. See
Figure 3-1 The configuration information of LAN
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3.2.2 Querying the Configuration Information of WAN
After login to D-20, the steps of entering the WAN information querying page are shown
as follows.
1) Click Basic in the operation navigation area.
2) Select the WAN tab in the user operation area to display the basic information of
Figure 3-2 The basic information of WAN
3.2.3 Querying the Statistics Information
After login to D-20, the steps of entering the statistic information querying page are
shown as follows.
1) Click Basic in the operation navigation area.
2) Select the Traffic tab in the user operation area to display the statistic information.
Figure 3-3 The statistics information
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3.2.4 Querying the Version
After login to D-20, the steps of entering the version information querying page are
shown as follows.
1) Click Basic in the operation navigation area.
2) Select the Version tab in the user operation area to display the system version
Figure 3-4 Version information
3.3 Configuring Parameters
3.3.1 Configuring LAN
I. Entering the configuration page of LAN
After login to D-20, the steps of entering the configuration page of LAN are shown as
follows.
1) Click Advanced in the operation navigation area.
2) Enter the LAN/Basic page.
In the user operation area, you can configure the following parameters including the
LAN interface IP address of D-20, subnet mask, and the relative configuration item of
DHCP. Click Apply and then D-20 auto restarts to validate the configurations.
Figure 3-5 shows the configuring page.
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Figure 3-5 Configuring the basic parameters of LAN
II. Description of LAN parameters
z
z
IP Address: The LAN address of D-20, by default, it is 192.168.1.1.
Subnet Mask: To divide the subnet with its IP address, by default, it is
255.255.255.0.
z
z
Dynamic Host Configuration Protocol (DHCP) Server: To realize the automatic IP
address distribution. If Enable is selected, the DHCP Server auto distributes IP
address. By default, it is Enable.
Start IP Address and End IP Address: To delimit the random range for the
automatic distribution of IP address. For example, in the subnet of 192.168.1.0/24,
when the default address for D-20 is 192.168.1.1, the maximum range for the host
IP is 192.168.1.2 – 192.168.1.254; the minimum is the single IP address.
DHCP Lease Time: The valid period for the IP address of the hosts in LAN. By
default, it is 86400s.
z
Note:
z
z
Start IP Address must be no larger than End IP Address.
If the DHCP Server is enabled, you can configure the Start IP Address, End IP
Address and DHCP Lease Time. Otherwise, you cannot configure parameters.
3.3.2 Configuring WLAN
I. Entering the WLAN Setting page
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The steps to enter WLAN setting page are shown as follows.
1) In the operation navigation area, click Advanced.
2) In the user operation area, select the WLAN tab.
In the WLAN setting page, you can set the service set identity (SSID), network type and
Figure 3-6 Setting WLAN basic parameters
II. Description of WLAN basic parameters
z
z
Wireless Interface: The SSID and MAC address of D-20, which is used for
identifying D-20. You do not need to fill it in manually, for the system will fill it in
automatically.
Network Name (SSID): Used for identifying a WLAN. When SSID of the wireless
terminal (such as PC) is the same with that of D-20, they can put up data
communication with each other. For the security of WLAN, do not use the default
SSID. Use other string instead, such as "My home".
z
Network Type: Network type of WLAN. When it is set to Open, WLAN is an open
network and D-20 broadcasts the SSID of this WLAN. This type of network is
convenient for users to access, but it is also easy for unauthorized access to
WLAN. When it is set to Closed, WLAN is a closed network and D-20 does not
broadcast the SSID of this WLAN. Under this network type, configure the SSID at
the wireless terminal first before accessing the WLAN to guarantee the security.
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z
AP Isolation: Used for setting the two working modes for D-20. When it is set to
On, multiple terminals can be connected to D-20, but wireless terminals cannot
visit each other.
z
Country: To identify different countries, for different countries adopt different
channel standards and each country defines a set of common channels in their
own country.
z
z
Interface: Used for enabling or disabling WLAN. When it is set to Disabled,
WLAN is unavailable. By default, it is Enabled.
Channel: The channel that D-20 works on. In the IEEE802.11 standard, the
working frequency of WLAN adopting direct sequence spread spectrum ranges
from 2.4 GHz to 2.4835 GHz. Each channel occupies a frequency band with a
bandwidth of about 22 MHz. The available channel varies with the selected
country.
z
z
Rate: To set the transmitting rate of D-20 WLAN. By default, it is set to Auto and
the supported rate is up to 54 Mbit/s.
54g™ Mode: Four modes are available.
Table 3-1 54g™ Mode
Mode
54g Auto
Description
With this mode, the compatibility of the WLAN is the best.
With this mode, the performance of the WLAN is the best.
54g Performance
When failed to communicate with the devices conforming to
the IEEE 802.11b standard, select this mode.
54g LRS
802.11b Only
D-20 can only work in the mode of the IEEE 802.11b standard.
3.3.3 Configuring WLAN Security
I. Entering the WLAN Security Setting page
The steps to enter the WLAN security setting page are shown as follows.
z
z
In the operation navigation area, click Advanced.
In the user operation area, select the WLAN Security tab.
In the WLAN Security Setting page, you can set the encryption mode and the
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Figure 3-7 WLAN Security Setting
II. WLAN Security Parameter Description
z
z
Wireless Interface: The SSID and MAC address of D-20, which is used for
identifying D-20. It is not necessary for the user to enter the parameter manually
and the system fills it in automatically.
802.11 Authentication: Two options are available, Open and Shared, which are
corresponding to two types of authentication for user's visit defined in the IEEE
802.11 standard. By default it is Open.
z
z
z
WPA-PSK: To enable or disable the management function of the WPA pre-shared
key.
WPA2-PSK: To enable or disable the management function of the WPA2
pre-shared key.
WPA Encryption: To set WPA encryption mode. Three modes are available:
TKIP, AES, and TKIP+AES.
z
z
WPA Pre-Shared Key: To set WPA pre-shared key.
Network Key Rotation Interval: To set the interval of the dynamic change of the
key. By default, it is 0 s. By setting to 0 or vacant, you can disable this function.
WEP Encryption: To enable or disable WEP data encryption. Two conditions are
required: Enabled is selected and an available key is set.
z
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z
z
z
z
z
Network Key 1: To enter 5-digit ASCII characters or 10-digit hexadecimal
numbers generates a 64-digit key. Or to enter 13-digit ASCII characters or 26-digit
hexadecimal numbers generates a 128-digit key.
Network Key 2: To enter 5-digit ASCII characters or 10-digit hexadecimal
numbers generates a 64-digit key. Or to enter 13-digit ASCII characters or 26-digit
hexadecimal numbers generates a 128-digit key.
Network Key 3: To enter 5-digit ASCII characters or 10-digit hexadecimal
numbers generates a 64-digit key. Or to enter 13-digit ASCII characters or 26-digit
hexadecimal numbers generates a 128-digit key.
Network Key 4: To enter 5-digit ASCII characters or 10-digit hexadecimal
numbers generates a 64-digit key. Or to enter 13-digit ASCII characters or 26-digit
hexadecimal numbers generates a 128-digit key.
Current Network Key: To choose one key from 1, 2, 3, and 4 as data encryption
or authentication.
3.3.4 Advanced Configuration of WLAN
I. Entering the WLAN Advanced Setting page
The steps to enter WLAN advanced setting page are shown as follows.
z
z
In the operation navigation area, click Advanced.
In the user operation area, select the WLAN Advanced tab.
In the WLAN Advanced Setting page, you can set the working mode, MAC address
Figure 3-8 WLAN advanced setting page 1
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Figure 3-9 WLAN advanced setting page 2
II. WLAN Advanced Setting Parameter Description
z
Wireless Interface: The SSID and MAC address of D-20, which is used for
identifying D-20. It is not necessary for the user to enter the parameter manually
and the system fills it in automatically.
z
z
Preamble Type: Two parameters are available, Long and Short. If it is supported
by terminal, to select Short will enhance the performance of WLAN.
Max Associations Limit: To set the up limit on the number of the terminal
connecting to D-20 at one time. D-20 supports up to 128 wireless terminals
theoretically to access the Internet through a wireless connection.
z
Table 3-2 Working mode of D-20
Mode
Description
Wireless bridge
Bridge mode, used for bridging between two or more APs.
Access mode, in which AP and WIRELESS TERMINAL
satisfying the IEEE 802.11b/g can access D-20.
Access point (AP)
z
Bridge Restriction: Select Disabled to disable wireless bridge restriction. Any
wireless bridge will be granted access. Select Enabled to enable wireless bridge
restriction. Only those bridges listed in Remote Bridges will be granted access.
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z
z
z
z
Bridges: The physical address of the remote peer bridge. D-20 supports P-to-P
bridge mode. One D-20 can connect with four remote peer bridges.
Peer MAC Address: The physical address list of the remote peer bridges. Up to
four physical addresses can be filled in.
Link Status: Two statuses are available, up and down. up means bridging is
successful and down means bridging is unsuccessful.
Disabled.
Table 3-3 MAC restrict mode parameter description
Parameter
Disabled
Description
MAC address filter function is disabled.
The wireless terminals corresponding to the MAC addresses
in the MAC addresses list are allowed to access D-20
through WLAN.
Allow
Deny
The wireless terminals corresponding to the MAC addresses
in the MAC addresses list are forbidden to access D-20
through WLAN.
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MAC Addresses: MAC addresses list. D-20 controls the access to the clients
whose addresses are listed in the MAC address list. Up to 16 MAC addresses can
be saved in the list.
Authenticated Stations: The information of wireless terminals that logs in to D-20
through authentication.
3.3.5 Configuring WAN
I. Configuring the parameters of WAN connection
The steps of entering WAN configuration page are shown as follows.
1) Click Advanced in the operation navigation area.
2) Click WAN in the unfolded navigation tree to display the parameter configuration
page of WAN. In this page, you can set the PPP parameters and parameters for
shows the configuration page.
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Figure 3-10 Configuring the parameters of WAN
II. Parameter Description of WAN
z
Table 3-4 Network modes
Description
Network mode
Performance
Remark
The maximum downlink D-20 runs only under the
CDMA 1X ONLY
EVDO ONLY
rate: 153.6 kbit/s
CDMA2000 1x network mode.
D-20 runs only under the
CDMA20001x EV-DO network
mode.
The maximum downlink
rate: 2.4 Mbit/s
D-20
auto
selects
the
CDMA2000 1x or the CDMA
2000 1x EV-DO network mode
and the CDMA2000 1x EV-DO
mode is preferential.
The maximum downlink
rate: 2.4 Mbit/s
HYBRID
z
PPP: Point-to-Point protocol is widely applied on the WAN. It supports the
synchronous mechanism and the asynchronous mechanism, and forms a set of
safety solutions to ensure safe transmission. D-20 adopts this protocol in the data
transmission on WAN.
z
z
PPP Username: The user name used in the communication when the PPP
protocol is adopted, provided by the Internet service provider (ISP).
PPP Password: The password used in the communication when the PPP protocol
is adopted, provided by the Internet service provider.
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PPP Connection: The connection mode of PPP. When Auto is selected, the PPP
connection holds on even though there is no data transmission; when On
Demand is selected, the PPP connection will be cut off automatically when there
is no data transmission for the PPP Max Idle Time duration.
PPP Max Idle Time: The duration of PPP connection in the idle mode. If there is
no data transmission within this duration, PPP connection will be cut off
automatically. By default, it is 600s.
z
z
z
PPP Keep Alive: The parameter of PPP connection for restoring. When set to
Enable, the system will auto restore to connecting state when the PPP connection
is cut off.
PPP MTU: The maximum unit of data transmission when PPP protocol is adopted.
By default, it is 1500B.
Caution:
Only when PPP Connection is set to On Demand can the configuration PPP Max Idle
Time be valid.
3.3.6 Managing the System
I. Managing the User and Password
This function is used to configure the login password and prevent the invalid users from
logging in to the configuration management page. D-20 provides two kinds of users,
Admin and User.
z
Admin is the administrator, who can view and change the configurations. By
default, the password is “admin”.
z
User is the common user, who can only view the basic information. By default, the
password is “user”.
Note:
z
Admin user can change only the administrator password but cannot change the
user password.
z
z
User user does not have the right of changing password.
Upper case and lower case letters, numeric, and the common symbols on the
keyboard all can be used as password. Special symbols are not allowed by the
system.
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Admin user can change the password in the User & Password configuration page.
The operation steps are shown as follows.
1) Select Advanced > Admin > User & Password in the operation navigation area
to display the User & Password page.
2) Enter the current password in the Current Password text box.
3) Enter the new password in the New Password text box.
4) Enter the new password again in the Confirm Password text box.
5) Click Apply to finish or click Cancel to cancel the changes.
Figure 3-11 The management page of User & Password
II. Upgrading the Software
This function is used for upgrading the software of D-20. The steps of entering the
software upgrading page are shown as follows.
1) Select Advanced in the operation navigation area.
2) Select Admin in the operation navigation area.
3) Select Upgrade Software in the operation navigation area to enter the Upgrade
Figure 3-12 The software upgrading page
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Caution:
z
z
After the upgrade of software, D-20 will restart. The process will take two minutes
approximately.
Download the software for upgrading only from the official website of ICE or other
network operator.
To upgrade the software of D-20, follow these steps.
1) Click Browse in the Upgrade page and select the software file. Take
WL6GCPU11004_update.app for an example.
2) Click Upgrade in the Upgrade page.
3) After upgrading, Upgrade Successfully! The gateway is rebooting… will be
prompted in the user operation area. Click Continue to reboot the devices to finish
the upgrade.
Figure 3-13 The software upgrading process
Figure 3-14 Upgrade successfully
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III. Restoring the Default Settings
The steps of restoring the factory setting are shown as follows.
1)
2)
Select Advanced in the operation navigation area.
Select Admin in the operation navigation area.
3) Select Restore defaults in the operation navigation area and then click Restore
Figure 3-15 Restoring the default settings
Note:
After setting D-20 to default settings, you need to re-set the parameters of D-20.
IV. Rebooting D-20
The steps of rebooting D-20 are shown as follows.
1) Select Advanced in the operation navigation area.
2) Select Admin in the operation navigation area.
3) Select Reboot in the operation navigation area and then click Reboot to reboot
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Figure 3-16 Rebooting D-20
3.4 Networking Example
3.4.1 Demand Analysis
Four PCs connect to D-20 through wired or wireless connection, which constitutes a
networking structure.
PC2
PC1
DHCPIP:192.168.1.107
DHCP IP:192.168.1.106
D-20
218.10.1.1
192.168.1.1/24
PC4
PC3
Routing/NAT
DHCPIP:192.168.1.108
DHCP IP:192.168.1.109
Figure 3-17 Networking example
3.4.2 Installing Hardware
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3.4.3 Configuring Device
automatically. PPP Username and PPP Password are mandatory, and other
parameters can be set to the default value.
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Chapter 4 Troubleshooting
4.1 Troubleshooting
4.1.1 The Host in the LAN Cannot Access the Internet
I. Symptom
The host in the wired LAN connected with D-20 cannot access the Internet.
II. Causes
z
z
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From the aspect of the host: the network configuration of the host and the network
card of the host
From the aspect of D-20: the connection to the power and the configuration of
D-20
From the aspect of network: the connection of Ethernet and the CDMA network
III. Troubleshooting
You can locate the problems as follow.
1) If the power indicator of D-20 is on, it means the power connection is normal; if it is
off, check the power connection of D-20.
2) There are five green indicators of signal strength on the panel of D-20. If none of
the signal strength indicator is on, make sure the CDMA network covers your
location area.
3) If there is CDMA network coverage, check the network mode. For the primary
users, the HYBRID network mode is recommended.
4) The”1”,”2”, “3” and “4” indicators of D-20 represent the Ethernet interfaces. If the
indicator is off, check the physical connection of the corresponding Ethernet
interface.
5) Make sure that PPP Username and PPP Password are correctly configured. For
6) If DHCP service is disabled, and the host still adopts the automatic mode, the host
cannot access the Internet. You can set the IP address of the host manually. For
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Figure 4-1 Internet Protocol (TCP/IP) Properties
z
IP address: The IP address of the host cannot be identical to that of other
computer in the same LAN and that of D-20; but it should be in the same subnet
with D-20. For example, if the IP address of D-20 is 192.168.1.1 and the subnet
mask is 255.255.255.0, the IP address of the host ranges from 192.168.1.2 to
192.168.1.254.
z
Subnet mask: The code that is necessary to divide subnet. Apply the bit-wise-and
operation on the IP address and the mask to make up the corresponding network
address. By default, it is 255.255.255.0.
z
z
z
Default Gateway: The IP address of D-20, by default, it is 192.168.1.1.
Preferred DNS server: provided by the network provider.
Alternate DNS server: provided by the network provider.
7) Make sure the driver of network adapter is well installed.
8) Restore the factory settings of D-20.
z
If the previous methods are all in vain, you can restore D-20 to the factory settings
by pressing and holding Reset (on the back panel) for more than 10 seconds.
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Caution:
z
z
After restoring D-20 to factory settings, make sure the host adopts the mode of
Obtain an IP address automatically.
After restoring D-20 to factory settings, you need to re-set the parameters of D-20.
4.1.2 The Host in the WLAN Cannot Access D-20
I. Symptom
One host is configured with a wireless network card and is to access the WLAN, but it
cannot set up the connection to D-20.
II. Causes
This failure is mainly because the wireless channel signal is weak or the parameters of
the wireless network card and that of D-20 are not the same.
III. Troubleshooting
1) If the signal is weak, make sure there is no interference source or shield near D-20.
If there is any, put D-20 at another place.
2) Make sure that the Interface of WLAN is enabled.
3) Make sure that the following parameters on D-20 and the wireless network card
are consistent: SSID, channel, WEP type, and key. Otherwise, you need to modify
the information of the wireless network card. The SSID of the wireless network
card should be ANY.
4.2 FAQ
I. What to do if you forget the administrator password
If you forget the administrator password, you can restore D-20 to the factory settings.
The default administrator account in factory settings is:
User name: Admin
Password: admin
Then you can change the administrator password of D-20.
II. What to do if you forget the IP address of the LAN interface
If you forget the IP address of the LAN interface of D-20, you can reset D-20 to the
factory settings. By default, it is 192.168.1.1.
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III. What to do if bridging between two D-20s is unsuccessful
First, make sure that the two D-20s work on the same channel. For details, see”3.3.2
Second, make sure that the MAC address of one D-20 is in the peer MAC address list
IV. When the signal strength is normal, what to do if the downloading rate is
much lower than 2.4Mbit/s?
In this case, you may need to set the DWORD value in registry of TcpWindowSize and
DefaultRcvWindow to 65536 at:
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters. If
TcpWindowSize or DefaultRcvWindow does not exist, you need to create a new
DWORD entry for them and then set the DWORD value to 65536.
To create a DWORD entry, see the following steps.
Figure 4-2 Select Run
Figure 4-3 Run regedit
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3) Select Parameters under the following directory:
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip. See
Figure 4-4 Select Parameters
Figure 4-5 New DWORD Value
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Figure 4-6 Rename
6) Right-click “TcpWindowSize” and then select Modify in the shortcut menu. See
Figure 4-7 Modify value
7) Select Decimal and enter “65536” in the Value data text box, and then click OK.
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Figure 4-8 Edit DWORD Value of TcpWindowSize
For the DWORD value of DefaultRcvWindow, do the same operations as that of
Figure 4-9 Edit DWORD Value of DefaultRcvWindow
Caution:
Window XP operating system is taken for an example in the preceding descriptions.
For other operating systems, the configuration method may be slightly different.
V. What to do if software update failed
If the failure is caused by sudden power-off, you can employ the emergency update
method. Enter the IP address of D-20 (by default, it is 192.168.1.1) in the browser, and
then press Enter to display the emergency update page. Then follow the instructions in
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Chapter 5 Acronyms and Abbreviations
3G
The Third Generation
A
AES
Advanced Encryption Standard
Access Point
AP
B
BSC
Base Station Controller
Base Transceiver Station
BTS
C
CDMA2000
Code Division Multiple Access 2000
D
DHCP
DNS
E
Dynamic Host Configuration Protocol
Domain Name Server
EV-DO
F
Evolution Data Optimization
Foreign Agent
FA
H
HA
I
Home Agent
IP
Internet Protocol
L
LAN
M
Local Area Network
Maximum Transmission Unit
Network Address Translation
MTU
N
NAT
P
PC
PDSN
PPP
Personal Computer
Packet Data Serving Node
Point-to-Point Protocol
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R
RAN
S
Radio Access Network
SOHO
SSID
STA
T
Small Office Home Office
Service Set Identity
Station
TKIP
W
Temporal Key Integrity Protocol
WAN
WAP
WEP
WLAN
Wide Area Network
Wireless Application Protocol
Wired Equivalent Privacy
Wireless Local Area Network
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