Network and 3G configuration on NEXCOM NISE50 with Ubuntu Core 16.04

This article shows how to configure the network on the Nexcom NISE50 running Ubuntu 16.04. 

Setting a static IP

To set up an static IP follow this steps

  1. Edit the /etc/network/interfaces file

    azeti@Nexcom-Master:~$ sudo vi /etc/network/interfaces
  2. Set the IP, gateway and DNS for each interface (enp2s0 for Ethernet 1 and enp3s0 for Ethernet 2)

    allow-hotplug enp3s0
    iface enp3s0 inet static
  3. Start the connection

    root@Nexcom-Master:~#sudo ifdown enp3s0 ;sudo ifup enp3s0

Creating a 3G Connection

To create a mobile connection, execute this commands with the proper information

The exact command to create a new connection depends on the 3G card model used and the sim card provider. Different cards will use different interfaces (ifname) and different sim providers will use different apn, user an password.

To check the port to be used execute the command 'sudo mmcli -m 0' and check the System / Primary Port

root@Nexcom-Master:~# mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id '09bb10c02c0912032e41d6402c4178eac5ee9594')
  Hardware |   manufacturer: 'QUALCOMM INCORPORATED'
           |          model: '0'
           |       revision: 'UC20GQBR03A07E1G  1  [2014/05/05 9:00:00]'
           |      supported: 'gsm-umts'
           |        current: 'gsm-umts'
           |   equipment id: '861075021729728'
  System   |         device: '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.2'
           |        drivers: 'qmi_wwan, option1'
           |         plugin: 'Generic'
           |   primary port: 'cdc-wdm0'
           |          ports: 'wwp0s29u1u2i4 (net), ttyUSB0 (qcdm), ttyUSB2 (at), ttyUSB3 (at), cdc-wdm0 (qmi)'

  1. Create a new connection

    1. Sierra Wireless MC8090

      root@Nexcom-Master:~# nmcli con add type gsm ifname ttyUSB3 con-name TELEKOM_GSMDEMO apn internet.t-mobile user t-mobile password tm
      Connection 'TELEKOM_GSMDEMO' (e2321f56-3d77-46c0-8e52-a7dcda87b0d8) successfully added.
    2. Quectel UC20GB

      root@Nexcom-Master:~# nmcli con add type gsm ifname cdc-wdm0 con-name TELEKOM_QUACTEL apn internet.t-mobile user t-mobile password tm
      Connection 'TELEKOM_QUACTEL' (2f98d139-2442-4f51-b554-b13da3216a3c) successfully added.
      Quectel UC20GB
  2. Activate the connection

    admin@localhost:~$ nmcli con up TELEKOM_GSMDEMO
    Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/6)
  3. Edit a connection ( APN for example)
    admin@localhost:~$ nmcli connection edit type gsm con-name TM_QUACTEL
    ===| nmcli interactive connection editor |===
    Adding a new 'gsm' connection
    Type 'help' or '?' for available commands.
    Type 'describe [<setting>.<prop>]' for detailed property description.
    You may edit the following settings: connection, gsm, serial, ppp, ipv4, ipv6
    nmcli> print
                        Connection profile details (TM_QUACTEL)
    ===============================================================================                          TM_QUACTEL
    connection.uuid:                        ca88b4bb-93b7-42b0-8d9a-2e5d6ecae740
    connection.interface-name:              --
    connection.type:                        gsm
    connection.autoconnect:                 yes
    connection.autoconnect-priority:        0
    connection.timestamp:                   0                   no
    connection.permissions:                                    --
    connection.master:                      --
    connection.slave-type:                  --
    connection.autoconnect-slaves:          -1 (default)
    connection.gateway-ping-timeout:        0
    connection.metered:                     unknown
    connection.lldp:                        -1 (default)
    ipv4.method:                            auto
    ipv4.dns-options:                       (default)
    ipv4.dns-priority:                      0
    ipv4.gateway:                           --
    ipv4.route-metric:                      -1
    ipv4.ignore-auto-routes:                no
    ipv4.ignore-auto-dns:                   no
    ipv4.dhcp-client-id:                    --
    ipv4.dhcp-timeout:                      0
    ipv4.dhcp-send-hostname:                yes
    ipv4.dhcp-hostname:                     --
    ipv4.dhcp-fqdn:                         --
    ipv4.never-default:                     no
    ipv4.may-fail:                          yes                       -1 (default)
    ipv6.method:                            auto
    ipv6.dns-options:                       (default)
    ipv6.dns-priority:                      0
    ipv6.gateway:                           --
    ipv6.route-metric:                      -1
    ipv6.ignore-auto-routes:                no
    ipv6.ignore-auto-dns:                   no
    ipv6.never-default:                     no
    ipv6.may-fail:                          yes
    ipv6.ip6-privacy:                       -1 (unknown)
    ipv6.addr-gen-mode:                     stable-privacy
    ipv6.dhcp-send-hostname:                yes
    ipv6.dhcp-hostname:                     --
    gsm.number:                             *99#
    gsm.username:                           --
    gsm.password:                           <hidden>
    gsm.password-flags:                     0 (none)
    gsm.apn:                                --                         --                                <hidden>                          0 (none)
    gsm.home-only:                          no
    gsm.device-id:                          --
    gsm.sim-id:                             --
    gsm.sim-operator-id:                    --
    nmcli> set gsm.apn 
    nmcli> save
    nmcli> quit


For openvpn setup follow the procedure explained here:

OpenVPN Client on Ubuntu 16.04


  • To check the assigned IP used "ifconfig"
  • To list the created connections use "network-manager.nmcli con"

    root@Nexcom-Master:~$ nmcli con
    NAME                UUID                                  TYPE            DEVICE
    TELEKOM_GSMDEMO     d472ed41-113a-4a37-972c-6517e335f3cf  gsm             ttyACM3
  • To check the configuration of each connection use the command "nmcli con show connection-name"

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