WM Systems M2M PRO4 DCU User manual

M2M PRO4 DCU®
User Manual
OpenWrt®user interface settings
v1.70
_________________________________________
2021-04-13

Document specifications
This document was made for the M2M PRO4 DCU® device and it contains the detailed description
of OpenWrt®configuration possibilities for the proper operation of the device.
Document category:
User Manual
Document subject:
M2M PRO4 DCU
®
Author:
WM Systems LLC
Document version No.:
REV 1.70
Number of pages:
86
Linux Kernel:
4.14.23
OpenWRT software version:
202102091
Document status:
FINAL
Last modified:
13 April, 2021
Approval date:
13 April, 2021

Table of contents
1. DEVICE CONFIGURATION (OPENWRT USER INTERFACE) .............................. 5
1.1 Web user interface ............................................................................................................. 5
1.2 Dashboard (Main page) ..................................................................................................... 7
1.3 Menu overview .................................................................................................................. 8
1.4 System menu .................................................................................................................... 9
1.5 Router menu...................................................................................................................... 10
1.6 Services menu .................................................................................................................. 10
1.7 Network menu .................................................................................................................. 10
1.8 Users menu ...................................................................................................................... 11
1.9 Statistics menu ................................................................................................................. 11
1.10 Lougout menu ................................................................................................................ 12
2. IMPORTANT NOTES ..................................................................................... 13
3. NETWORK CONFIGURATION OF THE DEVICE ............................................... 15
3.1 Interface settings .............................................................................................................. 15
3.2 Cellular internet settings .................................................................................................... 18
3.3 USB settings (USBLAN interface) ........................................................................................ 19
3.4 Ethernet (LAN) settings ..................................................................................................... 21
3.5 DHCP and DNS .................................................................................................................. 24
3.6 Defining the route rules (Static route) ................................................................................. 25
3.7 Firewall settings ................................................................................................................ 27
3.8 Port Forward settings ........................................................................................................ 32
3.9 NAT settings ...................................................................................................................... 33
4. ADVANCED SERVICES ................................................................................. 36
4.1 Ping IP address / checking IP ............................................................................................ 36
4.2 Network Time Service (NTP) .............................................................................................. 37
4.3 TFTP settings .................................................................................................................... 38
4.4 Identifiying and connecting computers ................................................................................ 38
4.5 RS485 Settings (Serial Proxy) ............................................................................................ 39
4.6 M-Bus settings ................................................................................................................... 41
4.7 Voice Call config ................................................................................................................ 44
4.8 LED configuration .............................................................................................................. 45
4.9 Execute commands remotely (SMS config) .......................................................................... 46

5. MAINTENANCE ........................................................................................... 48
5.1 Firmware Flashing ............................................................................................................. 48
5.2 Restarting the devoce ....................................................................................................... 50
5.3 Backup of device settings .................................................................................................. 51
5.4 Restore of device settings .................................................................................................. 53
5.5 Clone configuration ........................................................................................................... 53
6. ADMINISTRATION ....................................................................................... 55
6.1 Password change .............................................................................................................. 55
6.2 Logging ............................................................................................................................ 56
6.3 Language settings ............................................................................................................. 57
6.4 User management ............................................................................................................. 58
6.5 Installing 3rd party applications ......................................................................................... 60
6.6 Periodic reboot, periodic ping ............................................................................................. 62
6.7 Mount points .................................................................................................................... 63
6.8 Statistics............................................................................................................................ 65
6.9 Custom parancsok.............................................................................................................. 67
6.10 Remote access (SSH) ...................................................................................................... 68
6.11 UCI usage from command line .......................................................................................... 69
6.12 IPSEC settings.................................................................................................................. 70
6.13 OpenVPN settings ............................................................................................................ 73
6.14 Device Manager settings................................................................................................... 76
6.15 PIN code change .............................................................................................................. 78
7. TROUBLESHOOTING .................................................................................... 80
8. HARDWARE ADDITIONS & SETTINGS ........................................................... 84
8.1 Supporting miniPCIe modules ............................................................................................. 84
8.2 Supporting the „One-wire” interface .................................................................................... 84
8.3 Supporting the M-Bus meters.............................................................................................. 84
9. SUPPORT..................................................................................................... 85
10. LEGAL NOTICE .......................................................................................... 86

1. Device configuration (OpenWrt user interface)
1.1 Web user interface
Important!
The device’s software contains a pre-configured system. Please check the configuration, and if
the settings are not match with your expectations, change the configuration settings and save
them.
1. The device’s local web user interface (LuCi®) is reachable through the Ethernet or
the USBinterface –on their default addresses.
For the usage you have to install the „RNDIS Driver” to your computer, according to
the Installation manual Chapter 2.4.
2. Enter the default web user interface URL of the data concentrator.
The Ethernet interface default URL is: https://192.168.1.1
The micro USB interface’s default URL is: https://192.168.10.1
3. In the browser you will get a security risk message, its not important to take care, but choose
the Advanced option.

4. Then click on the Accept the Risk and Continue button to access the device’s webpage.
5. The OpenWRT®system’s LuCi®web interface has loaded into your browser. Now fill the
Username and Password fields and click on the Login button for the entry.
Username: root Password: wmrpwdM2M

1.2 Dashboard (Main page)
After you have logged in the web interface, a startup screen appears with all relevant information
and the current status of the data concentrator.
At the System part, you can check the installed software build (M2M Software model and M2M
Software version) where it should be 202102091 or newer. (If it has an older version, then
refresh the firmware, please.)
At the Local Time you can check the current time.
The Uptime shows the spent time interval since the last bootup (or reboot).

At the Network part, first you can check the wireless module availability at IPv4 WAN Status or
IPv6 WAN Status part, as the module’s IMEI identifier and the SIM ID identifier of the used SIM
card.
The wireless network access’ current status and health, properties can be checked at Modem RSSI
(cellular network signal strength), Network Name, Network Code and Cell ID is getting from
the mobile operator.
The module’s wireless network address can be seen at IPv4 WAN or IPv6 status. The Access
technology shows the current wireless network connection type as 2G , 3G , 4G LTE or NB-IoT.

1.3 Menu overview
By the menu you can access the following features:
-Status –Status data, operation Logs (system, kernel, event log), monitoring the operation
(at Processes and Realtime graphs)
-System –System settings and administration, software installation (3rd party tools), Device
Manager settings, startup settings, Scheduled tasks, Mount points (uSD card storage and
Flash file system content), LED configuration, Firmware flashing, Backup/Restore of the
configuration settings, Custom commands, Reboot of the system)
-Services –Dynamic DNS, mbus and OpenVPN settings
-Users –Add or delete users, Clone config, Ping an IP address, daily restart
-Network –Network interface settings (Ethernet/USB LAN/Wireless module/USB Phone
connection), SIM PIN change, DHCP and DNS settings, Hostname, Static routes, Bandwith
Diagnostics, Diagnostics, Firewall settings, Serial proxy (RS485) settings, IPSEC, SMS
configuration (remote command execute), Voice Call configuration)
-Statistics –system graphs and statistics settings
-Logout –logout and login with a different user
1.4 Status menu
•In the Status you can check the current status (Overview).
•At the Firewall item, you can see the firewall events and information.
•At the Routes item the valid/active static route settings.
•Check system messages and event log (System Log, Kernel Log).
•Check the activities of the device (Processes).
•You can find monitoring features of the realtime operation at the Realtime Graphs.
•You also can check or download the Event Log here.

1.5 System menu
•You will found several system settings in the System and the Administration menu items.
•Installation of further Software (3rd party tools, applications for the Linux distribution).
•Device Manager (remote management server settings)
•You can define the Startup applicatons
•Initialization of programs can be configured during the operation and the Scheduled Tasks.
•The Mount Points are showing the available (mounted) shares and drives of the uSD card
or connected USB driver and the Linux file system (flash).
•The LED Configuration is also configurable for custom needs.
•You also can Backup and restore your system configuration, applying Flash firmware
updates
•Custom Commands for defining some connads to execute.
•Reboot menu: restarting the device.
1.6 Services menu
Here you can define settings for
•Dynamic DNS service
•mbus settings
•OpenVPN tunnel settings for the system

1.7 Users menu
•You can add (define) or modify, delete Users for allowing to access the system
•Clone config backup/restore)
•Clone config backup/restore plane text (the sam in plain text format)
•Define periodic ping for QoS and network health check
•you can add a periodic reboot time (for industrial standard or safety reasons)
1.8 Network menu
•You can change the SIM PIN Change settings here.
•Here you can configure the settings of each network Interfaces.
•You can modify the DHCP and DNS settings.
•Define Hostnames for external devices.
•The Static routes can be also defined.
•At the Bandwith Diagnostics item, you can configure a diagnostic address for testing the
communication health.
•At the Diagnostics menu, you can check network access (ping, traceroute, nslookup).

•The Firewall rules can be declared here as the following submenu items: Port forward, IP
route, NAT settings.
•Also you can configure the RS485 port communication settings at the Serial Proxy menu.
•IPSEC (tunneling settings for secure connections)
•At the SMS Config menu you can define (remotely executable commands) –execution by
SMS messages
•The Voice Call Config menu is usable for remote control of the device (e.g. remote restart)
–execution by voice call
1.9 Statistics menu
•And check the statistics Graphs - you can test the network operation and connection health
by the ping an IP address for the interfaces.
•Here you can Setup the system Statistics
1.10 Logout menu
This menu item will allow you to log out from the OpenWrt® environment in your computer
browser.

2. Important notes
•By security reasons, we do recommend to change the web user inteface login and
password as soon as you can.
•The 4G LTE modules can be used by inserting SIM card into the SIM1 tray
•For the SIM2 tray you can use LTE 450 Cellient MPL-200 module or an LTE Cat.M1 /
Cat.NB2 Quectel module - which is connecting on the internal miniPCI-Express 2.0 slot.
These modules can only work with an LTE450, Cat.M, Narrow Band (NB-IoT) compatible SIM
card that can be inserted into the SIM2 slot. (In this case, only the SIM2 slot can be used.)
Please pay attention to the use the SIM2 tray, the chip is facing up.
•The IPv6 protocol is disabled for the LAN interfaces by default, change it if you want to
use it instead of the IPv4 protocol. Use the Network / Interfaces menu LAN1..LAN4
interface and the IPv6 relevant fields.
•The DHCP service is active for all interfaces, therefore the device will giving IP addresses for
the LAN1..LAN4 connected devices, but the protocol which is used, configured for static IP
addresses for the ethernet interfaces. If you want to use and distribute IP addresses by
DHCP, change its protocol to DHCP client. You can change its settings in the Network / DHCP
and DNS settings menu or in the Network / Interfaces menu, LAN interface and DHCP
section.
•The Firewall service is active by default (by security reasons), therefore all communication
is disabled excluding the used ethernet, DHCP, DNS and WAN channels, web port and the
necessary services and ports for normal operation for the device.
•We recommend you to disable all ports and protocols in the firewall which you are not using
actively or which are not necessary to the connection and data transmitting by respecting
the ports which are necessary for the general operation. Use to check Status / Firewall menu
to check the data throughput and the Network / Firewall to configure new roles.
•The firewall is not protecting the device against external network or DoS attacks,
if you just enable the firewall feature. For a massive and advanced safety, you have to
customize the settings by harmonized with you used current network and connection
settings.
•We offer to check the network traffic on your concentrator frequently by the Status /
Firewall menu option to be ensured that all of your connections and active communication
channels (port number, incoming IP) are using only the wanted paths and routes and
listening the defined incoming activities and consequently occuring the estimated output
traffic.

•We offer to measure your throughput data and network traffic (by minutes, hours) –
use the Status / Realtime Graphs or Statistics / Graphs and calculate the estimable
data transmitting amount according your expectations and the data limits of the used SIM
card.
•If you need, you can choose dedicated wireless service type or automatic mode (using which
is accessible). Therefore you can limit your data transmitting for 3G instead of 4G –for
example. Use the Network / Interfaces menu, WAN interface, Edit button and Service
Type field.
•The available APN settings will be assured by the SIM card provider mobile operator or
your mobile internet service provider. Ask them about APN, password, SIM PIN and further
necessary information.
•In case of network outage, the wireless and cabled network connections, sessions will be
reconnected soon, data will be received and transmitted automatically (by the settings) as
the power source was estabilished. The M-Bus, RS485 data will be received automatically
afterall.
•You can configure RS485 data speed rate betweeen 300 baud and 115 200 baud, but pls.
consider that max. 19 200 baud is guaranteed to receive. We offer to use 9 600 or 19 200
bps (as they are standards also), because some connected systems can cause loss of
characters/data in higher data transmitting speed rate.
•The MBus is configured for 2400 bps / 300 bps speed rate by default.
•The device is able to receive max. 32 connected RS485 devices.
•The device is able to receive max. 30 connected MBus compatible meters.
•In case of network outage, the wireless and cabled network connections, sessions will be
reconnected soon, data will be received and transmitted automatically (by the settings) as
the power source was estabilished. The M-Bus, RS485 data will be received automatically
afterall.
•If you want to use the concentrator without the wireless option, as a wired normal Ethernet
device with M-Bus/RS485 extension, you can do in the the Network / Interfaces menu,
by selecting the WAN interface settigns and there check in the Disable modem option.
•The device has service modes by its Reset button –for stop, restart and applying the
default configuration. You will found further information in the Installation Guide -
Service features (chapter 2.10) .

3. Network configuration
3.1 Interface settings
The list of the available network interfaces can be found at the Network / Interfaces menu item.
The USBLAN interface is assigning the microUSB connection ( usb0 interface).
The LAN interface is assigning the Ethernet port connections (LAN1, LAN2, LAN3, LAN4 physical
interfaces, which are bridged to the br-lan logical interface - at Linux side).
The WAN interface means the wireless Internet connection (as wwan0 ) the physical 4G module.
Modifying the interface settings
At the interfaces, at right you can modify the settings with the button.
The Stop button stops the communication on the current interface, the button
reconnects the related interface connection.

3.2 Cellular internet settings
The wireless module / cellular network settings of the device can be configured at the Network
menu, Interfaces menu item. Open the WAN item from the interface list by the Edit button.
The wireless connection can be operated through the dynamic and static IP address (IPv4)
assignment also - which is provided by your mobile operator.
At the General Setup tab, you can see the current status of the interface with transmitted data
amount.
Configure the module here to the wireless internet and for the 4G LTE network connection (by the
network type you want to use) for the WAN ( wwan0 ) interface.
The Protocol means the wireless Internet module –do not reconfigure this field, please.
In case of presence of the LTE450 or LTE Cat.M/Cat.NB module, the device recognizes the module
automatically and it configures the Protocol field to the neccessary value.

The Service type is the used wireless settings –you can choose a
communication band or you can leave it on the default value: LTE (4G)
/ UMTS (3G) /GPRS (2G) –which means Auto mode .
This mode grants the best speed and quality option on the network and
fallback feature (the highest cellular network service is not available -
e.g. when the 4G service is not available, the 3G will be used, etc).
If you have to use a dedicated network like 3G, 2G, etc., then choose the required network type.
Take consider, that the fallback mode will be inactive in this mode –if you choose the LTE
(4G) and it the network will be not available, there will be no 3G or 2G fallback (if the choosen
network is not available, the device won’t get mobile network access). For fallback always choose
the Auto mode (LTE / UMTS / GPRS).
DUAL SIM –this option is still in development.
Here you can define the APN name for the Internet connection, which is necessary to use.
When you will not set any value for the APN, then the device will restart the module sequentially
in every ca. 10 minutes until it is not configured properly.
Here you can define SIM card’s PIN code if it is necessary for the connection.
Note, that the PIN code which is already configured here, it cannot be seen here due to the security
rules –the characters are placed by asterix signs. Just modify the PIN if you would like to change.
Important! If you need to change the PIN code, use the Network / SIM PIN Change menu item.
Here you will found some examples for the APN settings.
M2M APN (enclosed)
APN name: wm2m
Attention!
The available APN settings will be assured by the SIM card provider mobile operator or your
mobile internet service provider.

Public Internet APN
APN name: net
Attention!
ALWAYS use the given APN name and password of your Mobile Operator.
ONLY for NB IoT (Vodafone GDSP SIM)
APN: nb.inetd.gdsp
APN password: (not presented)
ONLY for GDSP SIM (WM2M GDSP)
By using the GDSP SIM you have to follow the hints of the mobile operator when filling the SIM #1
APN, APN username and password fields.
In case of APN (WM2M network):
wm2m.gdsp
APN username: IMSI identifier of the SIM
card (number written on the SIM card, and
which is usually starting with „20404” tag)
APN password: wm2m.gdsp // for
using the Hungarian WM2M
For further international mobile network providers or in case of using in foreign
countries this information is assured by the local GDSP SIM mobile provider.
Automatic mode
When you not set any value for the APN, the device will connect by the SIM-card automatically
to the next available network’s available APN.
Authentication methods:
•The PAP/CHAP username and PAP/CHAP password settings can be also configured
here –if it is required for the connection.
•If you need dialup connection for using the Internet service at your provider, set the Dial
number value (format: *99***1# ).

The PAP/CHAP username and PAP/CHAP password settings can be also configured here –if
it is required for the connection.
For configuring and enabling the roaming settings –in case of international or country border
usage –you may need to setup the Mobile country code and Mobile network code parameters
–even if you are attempted to use only a prefered mobile network.
The international country codes can be found here: http://mcc-mnc.com
Ask your mobile operator about the available international settings.
If you want to disable the WAN interface (cellular internet module) –e.g. in case of using the device
at an Ethernet gateway –then check in the Disable modem option.
Click to the Save & Apply button for saving the settings, while the device is restarting the module
with the new settings and will connecting to the cellular network.
Then, you can check the data transmitting at the Network / Interfaces menu, when check the
WAN interface status at the Interfaces part.
As you can see, the device is already connected to the cellular network, it has active data traffic
and the RX (received data), TX (transmitted data) at Packets and KB (KBytes) values are growing.
At the Advanced Settings tab you will found further settings for the wireless module.
By default we do not offer to change these settings, only if you are special requirements at operating
the mobile network communication by the device (these are the LCP Echo settings, the Bring up
on boot and the use built-in IPv6 management parameters mainly).
If you have had changed some values here, please click upon the Save & Apply button for saving
the settings. Then the device will reconnecting the module to the mobile network.

3.3 USB settings (USBLAN interface)
The concentrator has an alternative LAN interface through the USB connection. The usage of this
port is ideal for configuration purposes, while you can use active data communication throught your
LAN interfaces.
The USBLAN interface settings for the USB Ethernet connection, which can be performed by
Network / Interfaces menu item at the USBLAN part, where you need to choose the
button. Then choose the General Setup tab.