Westermo DR-200 User manual

©Westermo Teleindustri AB • 2006
DR-200
MR-200
ADSL Router
GPRS Router
www.westermo.com
Web Interface and
Command Line
Reference Guide
6622-3201

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Legal information
The contents of this document are provided “as is”. Except as required by applicable law, no
warranties of any kind, either express or implied, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose, are made in relation to the
accuracy and reliability or contents of this document. Westermo reserves the right to revise this
document or withdraw it at any time without prior notice.
Under no circumstances shall Westermo be responsible for any loss of data or income or any
special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at the following Internet address:
http://www.westermo.com

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1 Introduction
Thank you for choosing a data communications product from Westermo. Westermo products are
extremely versatile and may be used in a wide variety of applications. It would not be possible to
describe in detail all such applications in a single guide. Consequently, this guide has been written
for use by technically competent personnel with a good understanding of the communications
technologies used in the product, and of the requirements for their specific application.
Westermo design and manufacture a wide range of both wireline and wireless network routing
products. For a complete, up-to-date list of current products, please visit the Westermo web site at
www.Westermo.com.
Whilst each of these models provide a different combination of hardware and software features, the
basic method of configuration using the web interface or command line is the same in each case.
This guide describes the operation of standard features available across the whole product range.
Consequently, some of the features described in this guide may only be available on certain models
or must be purchased as optional “feature packs”. You should refer to the specification of the
particular model you have purchased to ascertain which features are supported as standard.
In addition to a comprehensive range of communications capabilities, our products provide a
combination of powerful, yet easy to use, configuration, management and diagnostic tools. These
include a protocol analyser, a time-stamped event log and remote management via the web interface
or via a Telnet session.
In many applications, the serial ports will be configured to appear as if they were standard “AT”
modems and behave accordingly. However, many other standard protocols are supported (e.g. B- and
D-channel X.25, PPP, TPAD, V.120, etc.). This makes it simple and cost-effective to migrate existing
terminal equipment, which uses the analogue telephone network, to faster, more reliable and cost-
effective “wireline” or wireless digital services.
All major features of the unit can be configured using a standard Web browser. This can be done
locally (via a serial or LAN port), or remotely via a WAN connection. A built-in Web-server and flexible
FLASH-memory based filing system mean that the unit can also be customised to provide application
specific functions, statistics and diagnostic information
1.1 Typographical Conventions
Throughout this manual certain typographical conventions are used as follows:
Text Type Meaning
Text like this ... is standard text.
Note: Text like
this ... indicates points that are of particular
importance.
Text like this ... indicates commands entered by the user at the
command line.
Text like this ... indicates responses from the unit to commands
you enter at the command line.
Configure >Save refers to the unit’s web-based menu system.

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2 Using the Web interface
To access the built-in web pages using a web browser (e.g. Internet Explorer), there are two
options.
2.1 Access Via a LAN Port
To access the unit through a LAN port you should assign your PC an IP address on the 192.168.0.0/
24 network (for example use an IP address of 192.168.0.1 and a mask of 255.255.255.0).
Next, either connect an Ethernet crossover cable between the LAN ports on your router and PC, or
ensure that both devices are connected to an Ethernet hub/switch on the same network. You should
then be able to access the unit’s web, Telnet and FTP services on the IP address 192.168.0.99.
Note:
All models are auto-sensing for 10/100 operation. However, only the more recent models are
also
auto MDI/MDI-X, i.e. will automatically work with either a straight-through or cross-over cable.
2.2 Access Via a Serial Port
To access the web interface through one of the unit’s serial ports (using Windows dial-up networking)
follow the steps below.
Note:
To use Dial-up Networking you must have the TCP/IP >Dial-up adapter installed in the
Network Configuration for Windows. Check this by selecting Settings > Control Panel >
Network > Configuration.
2.2.1 Installing the Driver File
You will need to install the “SARIAN_MULTI_PORT.INF” driver file and create a Windows PPP Dialup
Networking connection (DUN) for the unit as described below. It is assumed that you already have a
basic knowledge of Windows networking concepts and terminology.
The precise procedure for installing the .inf driver file for the unit will vary slightly between different
versions of Windows. The following description applies to Windows XP.
Start by selecting Start > Control Panel > Phone and Modem Options. You must be in Classic View.
Select the Modems tab.
Click on Add… to install a new modem driver.
Check the Don’t detect my modem, I will select it from a list option before clicking Next >
You will see a list of the manufacturers and models of modem currently available on your system.
Insert the CD supplied into the CD drive and click on Have Disk….
Use the Browse button to locate the SARIAN_MULTI_PORT.INF file on the drive CD supplied with
your unit. This will be in the appropriate Windows version sub-directory of the drives folder, e.g.

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win95-98. A list of routers will appear in the Models list.
Each entry in the list is the same driver, set up for a different COM port.
Choose the entry corresponding to the COM port your router is connected to, and click Next >. The
wizard will ask you which COM port you wish to install the modem on.
Select the appropriate port and click Next >, and Windows will install the driver. Once installation is
complete click Finish to return to the Phone and Modem Options dialog, where your unit will be listed.
Click on the OK button if you are satisfied with the installation.
Note:
During the installation you may receive a warning that the driver is not digitally signed. Click on
Continue Installation to install the driver.
2.2.2 Creating A New Dial-Up Network Connection
You now need to create a new DUN connection through which you can access your unit.
If you are planning to connect the unit directly to your PC for configuration purposes, connect it to the
appropriate COM port now using a suitable serial cable.
If you wish to configure a remote unit, make sure it is connected to a suitable ISDN line and make a
note of the ISDN number.
From the Windows Start menu, select All Programs > Accessories > Communications > New
Connection Wizard. You will be presented with the New Connection Wizard introduction screen. Click
on Next > to proceed to the Network Connection Type dialog.
Select the Connect to the network at my workplace radio-button then click on Next >.
Select the Dial-up connection radio-button then click on Next >.
From the Select a Device dialog, select the unit you have just installed and make sure that any other
devices in the list are unchecked. Click Next >.
You must now enter a name for the connection. It is helpful to choose a name that you will easily
remember such as “My Local Westermo” or “DR-200 - Bristol Office”. Click Next >. The following
dialog allows you to fill in the phone number for the connection.
If the connection is being created for direct local access using a COM port, you should set the phone
number to 123. This number will be intercepted by the unit and recognised as an attempt to connect
locally.
If the connection is being created for remote access, enter the correct ISDN telephone number
(including the area code) for the remote unit.
When you have done this click Next >. The final dialog screen will confirm that the connection has
been created and includes a check box to allow you to create a shortcut on your desktop if necessary.
Click on Finish to complete the task.

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2.2.3 Configuring the New DUN Connection
The new DUN connection that you have just created may now be used to connect to the unit but
before you do this, you will need to check some of the configuration properties.
Click on the Start button and select Connect To > My Westermo Router (substituting the connection
name you chose).
Click on the Properties button to display the properties dialog for the connection.
On the General tab, click the Configure… button to display the Modem Configuration dialog.
Make sure that the Maximum speed (bps): value is set to 115200 and that the Enable hardware
flow control box is checked.
Click OK when you have finished to return to the main properties dialog.
Now select the Networking tab.
Make sure that the Type of dial-up server I am calling is set to PPP: Windows 95/98/NT/ 2000,
Internet and click on Settings:
Make sure that all three options are unchecked before clicking OK to return to the Networking tab.
In the This connection uses the following items list, Internet Protocol (TCP/IP) should be the only
item that is checked. Make sure that this is the case and then click OK to return to the main dialog.
You are now ready to initiate a connection.
2.2.4 Initiating a DUN Connection
In the main dialog, you are asked to enter a username and password. The default settings for your
unit are “username” and “password” respectively but you should change as soon as possible in
order to prevent unauthorised access to your unit (refer to the section entitled Configure > Users for
instructions on how to do this). The username is not case sensitive, but the password is.
Note:
When you type the password it will appear as a series of dots to ensure privacy.
Once you have entered these, initiate a connection to your unit by clicking the Dial button. During the
dialling and connection process, you may see a series of status dialog boxes and, if the connection is
successful, the final dialog box will indicate that the PPP login has been authenticated.
After a short delay, this dialog will minimise to a “linked computers” icon in the Windows taskbar.
You should now be ready to access the built-in web pages using your Web browser. The default “web
address” for the unit is 1.2.3.4. By default, this is also mapped to the system IP hostname ss.2000r.
You will need a valid username and password to access the web interface. Once again, the default
settings are username and password respectively. If these values do not allow access, you should
contact your system administrator.

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3 Using the command line interface
Using a Web browser to modify text box or table values in the configuration pages is the simplest way
to configure the unit and this process is described in the next chapter. However, if you do not have
access to a Web browser, the unit can be configured using text commands. These commands may be
entered directly at one of the serial ports or via a Telnet session. Remote configuration is also possible
using Telnet or X.25.
To use the serial ports you will need a PC and some communications software such as
HyperTerminal™ (supplied with Windows) or TeraTerm™. The same commands may also be used to
configure the unit remotely via Telnet, X.25 or V.120.
There are several types of text command:
AT Commands & S Registers
AT commands (pronounced “ay tee”) and Special registers (S registers) are supported in order to
maintain compatibility with modems when the unit is used as a modem replacement.
Application Commands
Application commands are specific to Westermo products and are used to control most features of the
unit when not using the Web interface.
X.3 Commands
These are standard X.3 commands which are used only in X.25 PAD mode
TPAD Commands
These are used only in TPAD mode.
3.1 The “AT” Command Interface
3.1.1 Command Prefix
The “AT” command prefix is used for those commands that are common to modems. To configure the
unit using AT commands you must first connect it to a suitable asynchronous terminal.
You will first need to set the interface speed/data format for your terminal to 115,200bps, 8 data bits,
no parity and 1 stop bit (these settings can be changed later if necessary).
When your terminal is correctly configured, apply power and wait for the B2 indicator to stop flashing.
Unless you have previously configured the unit to automatically connect to a remote system on
power-up, it will now be ready to respond to commands from an attached terminal and is in “command
mode”.
Now type “AT” (in upper or lower case), and press [Enter]. The unit should respond with the message
“OK”. This message is issued after successful completion of each command. If an invalid command is
entered, the unit will respond with the message “ERROR”.
Note:
For consistency AT commands are shown in upper case throughout this guide.
If there is no response, check that the serial cable is properly connected and that your terminal or PC
communications software is correctly configured before trying again.
If you have local command echo enabled on your terminal, you may see the AT command displayed
as “AATT”. If this happens you may use the “ATE0” command (which will appear as “AATTEE00”),
to prevent the unit from providing command echo. After this command has been entered, further
commands will be displayed without the echo.
The “AT” command prefix and the commands that follow it can be entered in upper or lower case.
After the prefix, you may enter one or more commands on the same line of up to 40 characters. When
the line is entered, the unit will execute each command in turn.

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3.1.2 The Escape Sequence
If you enter a command such as “ATD”, which results in the unit successfully establishing a
connection to a remote system, it will issue a “CONNECT” result code and switch from command
mode to on-line mode. This means that it will no longer accept commands from the terminal. Instead,
data will be passed transparently through the unit to the remote system. In the same way, data from
the remote system will pass straight through to your terminal.
The unit will automatically return to command mode if the connection to the remote system is
terminated. To return to command mode manually, you must enter a special sequence of characters
called the “escape sequence”. This consists of three occurrences of the “escape character”, a pause
(user configurable) and then “AT”. The default escape character is “+” so the default escape sequence
is:
+++ {pause} AT
Entering this sequence when the unit is on-line will cause it to return to command mode but it will NOT
disconnect from the remote system unless you specifically instruct it to do so (using “ATH” or another
method of disconnecting). If you have not disconnected the call, the “ATO” command may be used to
go back on-line.
3.1.3 Result Codes
Each time an AT command line is executed, the unit responds with a result code to indicate whether
the command was successful. If all commands entered on the line are valid, the “OK” result code will
be issued. If any command on the line is invalid, the “ERROR” result code will be issued.
Result codes may take the form of an English word or phrase (verbose code) or an equivalent number
(numeric code), depending on the setting of the “ATV” command. Verbose codes are used by default.
The “ATV0” command can be used to select numeric codes if required. A full list of the Result codes is
provided in the following table:
The “AT” command prefix and the commands that follow it can be entered in upper or lower case.
After the prefix, you may enter one or more commands on the same line of up to 40 characters. When
the line is entered, the unit will execute each command in turn.
Numeric Code Verbose Code Meaning
0 OK Command line executed correctly
1 CONNECT ISDN connection established
2 RING Incoming ring signal detected
3 NO CARRIER X.25 service not available
4 ERROR Error in command line
6 NO DIALTONE ISDN service not available
7 BUSY B-channel(s) in use
8 NO ANSWER No response from remote
“S” Registers
“S” (Special) registers are registers in the unit that are used to store certain types of configuration
information. They are essentially a “legacy” feature included to provide compatibility with software
that was originally designed to interact with modems. A full list of the registers is provided under the
section heading “S registers”.

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3.2 Westermo Application Commands
The unit also supports numerous text-based “application” commands that are specific to Westermo
products and do not require the “AT” prefix. Some of these are generic i.e. they are related to the
general operation of the unit; others are application or protocol specific.
Application commands may be entered via any of the serial ports but if you are using ASY 0 or ASY
1 with auto-speed detection enabled (which is not possible on ports 2, 3, etc.), you must first lock the
interface speed to the same as that of your terminal. To do this first ensure that the unit is responding
to AT commands correctly and then enter the command:
AT\LS
The speed will remain locked until the unit goes on-line and then off-line again, the power is removed
or the unit is reset. Once the port speed has been locked, “AT” commands will still work but you may
also use the application commands.
Remember that if you subsequently re-enable auto-speed detection on the port it will disable the
use of application commands until the “AT\LS” command has been re-entered or the port speed has
been set to a specific speed using “S31”. For example, to set the port speed at 19,200bps enter the
command:
ATS31=6
then change your terminal settings to match.
Note:
Speed locking is not necessary when you use the text commands via a Telnet session.
Westermo application commands (referred to just as text commands throughout the remainder of this
guide), can be entered in upper or lower case but unlike “AT” commands, only one command may
be entered on a line. After each successful command, the “OK” result code will be issued. An invalid
command will cause the “ERROR” result code to be issued.
The general syntax for an application commands is:
<cmd_name> <instance> <param_name> <value>
where:
<cmd_name> is the name of the command
<instance> is the instance number for the entity that you are configuring.
<param_name> is the name of the parameter that you wish to configure.
<value> is the new value for the specified parameter.
For example, to set the window size to 5 for X.25 PAD instance 1 you would enter:
pad 1 window 5
Even if there is only once instance of particular entity, you should only enter 0 for the instance
number.
3.2.1 The Active Port
When entering “AT” or text commands it is important to understand that in most cases, the command
only affects the settings for the “active” port. This is usually the port to which you are physically
connected but you may, if necessary, set the active port to another port of your choice using the “AT\
PORT=N” command where “N” is 0-3.
3.3 Establishing a Remote Connection
Once you have finished configuring the unit, there are several ways of establishing a link to a remote
system:

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♦An outgoing V.120 call may be made using the “ATD” command ♦You can initiate a DUN session to
establish a dial-up PPP connection. ♦An outgoing X.25 call may be made using the “ATD” command
followed by the X.28 CALL
command.
♦An outgoing TPAD (Transaction PAD) call may be made by using the TPAD “a” (address) command
followed by the appropriate NUA (this is normally only carried out under software control).
Similarly, incoming calls will be handled according to which protocols have been bound to the ASY
ports and whether or not answering is enabled for each protocol.