４ PORTS ＋ WIRELESS
ADSL2+ Router
DB120-WL
User Manual
１
V 1.
DSL Gateway/Router — User Manual
CONTENTS
1.OVERVIEW.......................................................................................................................................................3
1.1 ABOUT ADSL.....................................................................................................................................3
1.2 ABOUT ADSL2/2+..............................................................................................................................3
1.3 FEATURES..........................................................................................................................................3
2 SPECIFICATION..............................................................................................................................................4
2.1 INTERFACE INTRODUCTION.........................................................................................................4
2.1.1 INDICATOR AND INTERFACE..................................................................................................4
2.1.2 SPLITTER SPEC..........................................................................................................................4
2.2 HARDWARE CONNECTION.............................................................................................................5
2.3 LED STATUS INDICATION...............................................................................................................5
3. CONFIGURATION..........................................................................................................................................6
3.1 DEFAULT CONFIGURATION...........................................................................................................6
3.2 COMPUTER CONFIGURATION.......................................................................................................6
3.3 ADSL MODEM CONFIGURATION..................................................................................................6
3.3.1 LOG IN..........................................................................................................................................6
3.3.2 SAVE SETTING............................................................................................................................6
3.4 WAN CONFIGURATION....................................................................................................................7
3.4.1 CONFIGURATION GUIDE.........................................................................................................7
3.4.2 RFC1483 BRIDGE CONFIGURATION.......................................................................................9
3.4.3 PPPOE CONFIGURATION........................................................................................................11
3.4.4 STATIC ADDRESS.....................................................................................................................12
3.5 WIRELESS CONFIGURATION.................................................................................................................13
3.5.1 WIRELESS SETUP.....................................................................................................................13
3.5.2 WIRELESS SECURITY.............................................................................................................13
3.5.3 WIRELESS MAC Filter..............................................................................................................15
4 OTHER CONFIGURATION.........................................................................................................................16
4.1 LAN CONFIGURATION...................................................................................................................16
4.1.1 CONFIGURATION OF MODEM’S IP ADDRESS....................................................................16
4.1.2 DHCP CONFIGURATION.........................................................................................................17
4.2 PASSWORD CONFIGURATION.................................................................................................17
5. TROUBLESHOOTING.................................................................................................................................18
5.1 UNABLE TO ACCESS INTERNET.................................................................................................18
5.1.1 CHECK THE LINE AND THE DEVICE...................................................................................18
5.1.2 CHECK YOUR CONFIGURATION..........................................................................................18
ANNEX：SHIPPING LIST...............................................................................................................................19
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DSL Gateway/Router — User Manual
1.OVERVIEW
1.1 ABOUT ADSL
An ADSL MODEM is a broadband Internet access device, which utilizes the high frequency segment of
the phone line to transmit high-speed data without affecting the voice transmission. The frequency of the ADSL
signal is higher than that of voice, so voice and ADSL signal can coexist in one line by using a splitter to
insulate each from the other. ADSL data transfer adapts the asymmetry model. It supports upload transmission
speed up to 1Mbps and download speed up to 8 Mbps (24Mbps for ADSL2+). ADSL is an ideal device for
broadband access.
1.2 ABOUT ADSL2/2+
Transmission performance of ADSL2 is improved comparing with the first generation of ADSL. These
improvements are mainly concerned with long distance, anti-line-loss, anti-noise, etc. By doubling the
transmission bandwidth, ADSL2+ has implemented a downlink rate as high as 24 Mbps. Therefore, Internet
applications such as synchronous transmission of multi video stream, online games and huge capacity of
downloading files are made possible.
1.3 FEATURES
1、 Support ANSI T1.413 ISSUE 2、 ITU G.992.1 (G.DMT)、ITU G.992.2 (G.LITE)、ITU G992.3、
ITU G992.5
2、 Web-based configuration and monitoring.
3、 Support multiple PVCs.
4、 Routing function.
5、 NAPT、DHCP function.
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2 SPECIFICATION
2.1 INTERFACE INTRODUCTION
2.1.1 INDICATOR AND INTERFACE
DSL Gateway/Router — User Manual
Table 2.1
ITEM Name State introduction
POWER A steady red light means the power connection works properly
Indicator
Interface
DSL Yellow, shows DSL line status.
INTERNET Green, Flashing means the Modem is transmitting or receiving data
WLAN Green, Indicates status of connection to the wireless device
LINE Connected with phone line or “ADSL” port of the splitter.
ETHERNET
SWITCH Power interface, Connect with power adapter.
POWER To turn on / off the power.
RST
To be connected to a PC network card by a straight-through network cable, also
can use a crossover cable to connect to Hub, Switch or Router.
Press the reset button and turn on the power, then keep pressing the reset button for
5 seconds. Then you can reset the modem with the default settings.
2.1.2 SPLITTER SPEC
Table 2.2
Interface Introduction
LINE Connected with telephone line
Connect with the LINE port of the
ADSL
PHONE Connect with telephone
ADSL Modem using telephone
line provided.
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DSL Gateway/Router — User Manual
2.2 HARDWARE CONNECTION
Introduction：
1、 Use a telephone cord to connect the LINE port of the splitter with the RJ-11 port (the phone jack) on
the wall.
2、 Use another telephone cord to connect the ADSL port of the splitter with the LINE port of the ADSL
Modem.
3、 Use another telephone cord to connect the telephone set with the PHONE port of the splitter.
4、 Connect Ethernet port of the ADSL MODEM with 10/100BASE-T port of the computer using the
network cable that comes with the modem.
5、 Plug in the power cord, and turn on the power.
If you do not want Internet services and telephone voice services simultaneously, please just connect the
LINE port of the ADSL Modem with the RJ-11 port (the phone jack) on the wall using a telephone cord. In this
case, the splitter is not necessary.
2.3 LED STATUS INDICATION
Table 2.3
Status POWER (red)
Steady light Power on The modem is in good
Flashing / In handshaking status / /
Fast flashing / / Transmitting or receiving
Off Power off Connection not set up Not connected with PC
DSL (yellow) INTERNET (green) WIRELESS(green)
Connected with PC Wireless is
connection
data
properly
connected
Transforming data
Wireless is disabled
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DSL Gateway/Router — User Manual
3. CONFIGURATION
3.1 DEFAULT CONFIGURATION
ADSL MODEM has pre-configured with the VCI/VPI which is in common use. The default dial-up mode
is bridge encapsulation. For bridge mode, no need to configure any more parameter. However, the third party
dial-up software is needed for connection with the Internet.
3.2 COMPUTER CONFIGURATION
The default IP address for ADSL MODEM is:
configure ADSL MODEM through an Internet browser. ADSL MODEM can be used as gateway and DNS
server; users need to set the computer’s TCP/IP protocol as follow:
1、 Set the computer IP address at same segment of ADSL MODEM, such as set the IP address of the
network card to one of the “192.168.1.2”～ “192.168.1.254”.
2、 Set the computer’s gateway the same IP address as the ADSL Modem’s.
3、 Set computer’s DNS server the same as ADSL Modem’s IP address or that of an effective DNS server.
192.168.1.1
; The Subnet Mask is：
255.255.255.0
. Users can
3.3 ADSL MODEM CONFIGURATION
3.3.1 LOG IN
Open the browser; input http://192.168.1.1 at the address column. Press “Enter” key then the entry dialog
box will show up as Figure 3.1. Input Username: admin , Password: password (capital sensitive), then press
Enter.
Figure 3.1
3.3.2 SAVE SETTING
After getting through each page for parameters setting, click “Save” or “Save apply” to store the value in
ADSL MODEM. Briefly, we named “Save”.
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DSL Gateway/Router — User Manual
：
Note
When you save the settings, the web page will be refreshed slowly, please wait it finished.
After you save the settings, it will take effect until next reboot.
Some settings only take effect after rebooting the router.
3.4 WAN CONFIGURATION
If the configuration is bridge encapsulation, there is no need to configure any more parameters. Only need
to use the third party dial-up software to connect the Internet.
Totally, this router supports：PPPoA、PPPoE、MER、IPoA、Bridging. For detail configuration information,
please check the following configuration guide.
3.4.1 CONFIGURATION GUIDE
Click “WAN” on the left page, enter into “WAN” configuration page.
l Note: At most we can have eight connections. If you need to add a new connection, please delete or modify
an existing connection.
Figure 3.2
Click on the next connection which you want modify. Press “Edit” button, enter the configure guide, as
Figure 3.3
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DSL Gateway/Router — User Manual
Figure 3.3
l The value for VPI/VCI is assigned by your ISP. After inputting the PVC value, press “Next” into
“connection type”. As Figure 3.4.
Figure 3.4
The Modem supports five ADSL protocol modes. Choose the protocol which is appointed by ISP and PVC
encapsulation, click “Next” enter to the protocol configure. Below, we introduce the configuraion of the
five protocol modes.
• PPP over ATM (PPPoA) • PPP over Ethernet (PPPoE)
• MAC Encapsulated Routing (MER) • IP over ATM (IPoA)
• Bridging
l Some connection lines need to confirm the LLC or VC, if you can’t confirm, please don’t modify the
default value or ask your ISP.
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3.4.2 RFC1483 BRIDGE CONFIGURATION
Select the Bridging mode. Then press “Next” to specify the Service Name, and select the “Enable Service” as
Figure 3.5.
Figure 3.5
Press “Next” to enter into “WAN configuration”, click “save” to save configuration, if you need to modify
the parameter, click “back” as Figure 3.6.
Figure 3.6
Note：When you use bridge mode, please close “DHCP SERVER”, the result as Figure 3.7
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DSL Gateway/Router — User Manual
Figure 3.7
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DSL Gateway/Router — User Manual
3.4.3 PPPOE CONFIGURATION
PPPoE is also known as RFC 2516. It is a method of encapsulating PPP packets over Ethernet.
PPPoA is also known as RFC2364 and named as Peer to Peer Protocol over ATM. As PPPoE, it also has all
the features of PPP. Although it’s based on ATM protocol, the setting of all the other parameters is similar with
PPPoE. So we only introduce PPPoE in detail here.
In Figure 3.4, select PPP over Ethernet (PPPoE), press “Next step” entering the configuring interface, as Figure
3.8.
Figure 3.8
l PPP Account: Your account from ISP to access Internet.
l Password: Input the password assigned by your ISP.
l PPPoE server name: Server name of network ISP. No need to set.
l Authentication Mode: Authentication mode of network ISP. Default is AUTO.
l Connection on demand: When this mode is selected, the connection that has no traffic within assigned
disconnect timeout (e.g. 1 minute) will be automatically disconnected. The connection will be activated
again when traffic arrives. This function is advantageous for users who are charged with online time. It
should be noticed that some programs automatically link to Internet. Computer will send data to network
when infected by virus. Connection will not be disconnected under these data streams.
l Disconnect timeout: When “Connection on demand” is selected, this input box indicates that after how
long the connection will be disconnected in the absence of traffic. If the value is 0, connection will not be
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DSL Gateway/Router — User Manual
disconnected.
Press “Next step” when configuration is finished. The following operation is same with Figure 3.5. Notice that
PPPoE mode does not work until the modem is reset.
3.4.4 STATIC ADDRESS
In Figure3.4, select MAC Encapsulation Routing (MER), press “Next”, and the configuration can be
queried from your ISP, the result as Figure3.9.
Figure 3.9
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3.5 WIRELESS CONFIGURATION
Press “Wireless” on the top of web pages to enter wireless section. You can select to configure wireless
setup, security and management.
3.5.1 WIRELESS SETUP
Click “Setup” on the left menu to setup basic wireless parameters. In default, check “Enable Ｗireless”
box to launch wireless AP.
SSID (Service Set Identifier): The mobile users cannot access WLAN until setting their SSID as the same
l
value of the wireless ADSL. The SSID value of the ADSL is “default”
Hidden Access Point: If checked, wireless station will no see SSID of the ADSL.
l
3.5.2 WIRELESS SECURITY
Press “Security” on the left menu to construct wireless security. You can select to configure WEP
encryption, Shared, 802.1x, WPA, and WPA2 authentication.
l WEP Encryption
Select “Enabled” of the WEP encryption list. You can enter WEP encryption page.
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Encryption Strength: Key length: 128bits or 64bits.
Network Key 1-4: Up to four keys that are in form of hex digitals could be set. Mobile users can’t
access the AP if they haven’t set the same key as AP. For 64bits and 128bits keys, you should input 10
and 26 hexadecimal digitals or 5 and 13 ASCII characters respectively. Every two digitals should be
comparted with others by a space character. For example: “7890ABCDEF” (hexadecimal digitals) or
“QWERT” (ASCII characters) for a key length of 64bits.
802.1x Authentication
l
Select “802.1x” to enter 802.1x authentication page.
The 802.1x authentication needs a Radius server in LAN. In this page, you can input Radius server IP
address, port number and secret key.
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3.5.3 WIRELESS MAC FILTER
In fact, the Access List function is just like MAC address filtering and selected to permit or forbid access
of wireless station with specified MAC address.
Method: select “Allow” or “Deny” mode, and click “Add” button, and input MAC address which you
want to allow or deny.
Notice: You only can select one of allow mode or deny mode.
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DSL Gateway/Router — User Manual
4 OTHER CONFIGURATION
4.1 LAN CONFIGURATION
Configuration of Modem’s IP address and password
4.1.1 CONFIGURATION OF MODEM’S IP ADDRESS
As a network device, ADSL Modem has its own IP address and MAC address. The factory sets the
MODEM, at a default IP address of 192.168.1.1 and subnet mask of 255.255.255.0. The user can configure
these addresses through the “LAN” on “Configuration” like this:
For example, change IP address to “10.10.10.10”. Click ”LAN”, input “IP address”: 10.10.10.10, then
“subnet mask”: 255.0.0.0, the result is as Figure4.1, press “save”.
Figure 4.1
Note：If you change IP address, it will take effect after you reboot the modem. You must use the new IP
address to login.
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4.1.2 DHCP CONFIGURATION
• click“LAN ”
• click“DHCP server”；
• Define the “Start IP address” and the “End IP address” of DHCP server (for example, from
10.10.10.11 to 10.10.10.254).
• Input the value of lease (Measured by the second, 0 indicates permanently valid).
As Figure 4.2, open DHCP server, computer will set the IP Address of network card with one of the address
10.10.10.11 ～ 10.10.10.254.
Figure 4.2
Note：When you use the DHCP Server, please pay attention to having multi-DHCP Server in one LAN.
4.2 PASSWORD CONFIGURATION
When you configure ADSL MODEM through an Internet browser, the system requires user name and
password to validate access permission. The factory sets the modem at a default username of “admin” and the
password of “password”. The username is unchanged. You can enter the “password configuration” on
Configuration column to change the password.
Attention: please remember the password after change, otherwise you will not be able to
change configuration after saving setting
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5. TROUBLESHOOTING
5.1 UNABLE TO ACCESS INTERNET
5.1.1 CHECK THE LINE AND THE DEVICE
1、 Check the indicator of power supply is on, if not, Make sure the connection of power supply is correct;
Make sure the output of power supply is correct; Make sure the switch of power supply is turned on；
2、 Check the indicator of PC is on, if not, Make sure the connection of cable and network adapter; Make
sure that the correct cable is used;
3、 Check the LINK LED to see if it is twinkling. If no fast twinkling is observed within 3 minutes, please
check whether phone line has been correctly placed; whether ADSL separator is correctly used. If
multiple extensions have been installed, make sure that the separator is installed prior to the junction
box of phone line. If the above items are confirmed and still no fast twinkling of WAN LED is
observed, call the ISP to query whether ADSL service has been provided on your line;
4、 Check the LINK LED to see whether it is unable to change status from fast twinkling to always light,
or whether it changes status to fast twinkling after sometime of always light. If these phenomena occur
constantly, please contact your ISP with a demand to check lines and signal quality;
If there is no problem in the above items, the line and the device shall be working. Problems may come
from your computer configuration or device configuration.
5.1.2 CHECK YOUR CONFIGURATION
We explain here the configuration of PPPOE using Windows 2000 operation system as an example. For
other operation systems the process is similar.
1、 Enter the device manager to check if Ethernet adapter is correctly installed. If any problem exists,
please re-installed it;
2、 Check the configuration of Ethernet adapter in PC. Try to manually set IP address that is in band
192.168.1.x without conflict. See 3.2;
3、 Try to run command “ping 192.168.1.1” on command line mode. If the response returns “time out”,
please check Ethernet connection and IP settings;
4、 If this modem is reachable, try to run ping with a known outer IP, e.g. the DNS server IP of ShangHai
Online: “ping 202.96.209.133”.
l If ping is reachable, there shall be no problems in the modem. Please see step 5;
l If ping is not reachable, see step 6 and check if the configuration is correct.
5、 Please try to ping a certain outer URL, e.g. “ping www.google.com”.
l If ping is reachable, there shall be no problems in the network settings. Please check the settings
of the PC terminal, e.g. whether the security level is too high, or whether anti-virus firewall is
installed;
l If ping is not reachable, check the DNS setting of Ethernet adapter. See 3.2.
Note 1：The precondition is that LAN settings in the modem has not been modified.
Note 2：We usually start command line mode in Windows 2000 as follows: click on the “RUN” item of
Windows Start Menu, input characters “cmd” in the input box popped up with an “Enter”. The window
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subsequently popped up is the command line window.
Note 3：The returned values of ping command in the following format show the standard of “reachable”
Figure 5.1
6、 If ping of the modem is reachable but ping of the outer fixed IP is unreachable, attention should be
concentrated upon device settings. Please enter the configuring interface following the instructions in
this manual.
（1） Check first the number of connections. If more than one connection exists, for troubleshooting ,
delete unused connections and remain the one connection you are using.
（
2） Check the connection to see whether correct “type” is selected. It’s normal to choose login type of
PPPoE. When you use PPPoE to login, the following information should be provided: VPI and
VCI, which can be queried from your ISP, user name and password.
（3） Then make sure that “using NAT” and “default gateway” have been selected with a tick. Check
whether “connect on demand” has been selected with a tick. If it is selected, the connection is
activated only when traffic to outer networks arrives. If not selected, check “keep connection”,
which should be set to 0 if you demand to keep connection
Make sure that the above parameters are saved after configuration. Internet is now available since the
configuration is properly done.
About FCC certification:
This device complies with Part15 and Part68 of the FCC Rules.Operation is subject to the following
conditions:（1）this device may not cause harmful interference,and (2) this device must accept any
interference received,including interference that may cause undesired operation
ANNEX：SHIPPING LIST
ADSL MODEM
Splitter ×
User Manual
Power Supply
Cable Cat5 RJ45
Telephone Line
Warranty Certificate ×
×1
1
×1
×1
×1
×2
1
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FCC INFORMATION
This equipment complies with CFR 47, Part 15.19 of the FCC rules. Operation of the equipment is subject to the following
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received; including
interference that may cause undesired operation.
THIS DEVICE MUST NOT BE CO-LOCATED OR OPERATING IN CONJUNCTION WITH ANY OTHER ANTENNA OR TRANSMITTER
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY
UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S
AUTHORITY TO OPERATE THE EQUIPMENT.
Federal Communications Commission (FCC) Requirements, Part 15
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
---Reorient or relocate the receiving antenna.
---Increase the separation between the equipment and receiver.
---Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
---Consult the dealer or an experienced radio/TV technician for help.
REGULATORY INFORMATION / DISCLAIMERS
Installation and use of this Wireless LAN device must be in strict accordance with the instructions included in the user
documentation provided with the product. Any changes or modifications (including the antennas) made to this device that are not
expressly approved by the manufacturer may void the user’s authority to operate the equipment. The manufacturer is not
responsible for any radio or television interference caused by unauthorized modification of this device, or the substitution of the
connecting cables and equipment other than manufacturer specified. It is the responsibility of the user to correct any interference
caused by such unauthorized modification, substitution or attachment. Manufacturer and its authorized resellers or distributors will
assume no liability for any damage or violation of government
CAUTION: To maintain compliance with FCC’s RF exposure guidelines, this equipment should be installed and operated with
minimum distance 20cm between the radiator and your body. Use on the supplied antenna. Unauthorized antenna, modification, or
attachments could damage the transmitter and may violate FCC regulations.
MPE Statement (Safety Information)
Your device contains a low power transmitter. When device is transmitted it sends out Radio Frequency (RF) signal.
SAFETY INFORMATION
In order to maintain compliance with the FCC RF exposure guidelines, this equipment should be installed and operated with
minimum distance 20cm between the radiator and your body. Use only with supplied antenna. Unauthorized antenna, modification,
or attachments could damage the transmitter and may violate FCC regulations.
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