On Tue, 2018-09-18 at 14:02 +0200, Giovanni Parodi via networkmanager- list wrote: > Hello everybody, > I have a problem connecting to a UMTS network on an embedded system. > Here are the details: > - Modem Quectel UC20 > - packages installed: usbutils, usb_modeswitch, NetworkManager > (1.0.4), ModemManager (1.4.2). > > To activate network connection, I work as follows: > > // Start ModemManager with log debug > ModemManager --debug & > > // Enable modem > mmcli -m 0 -e > > // Start NetworkManager > NetworkManager & > > // cdc-wdm0 is the primary port oc the modem, look at the > following text. > nmcli c add type gsm ifname cdc-wdm0 con-name remoteConnection > apn ibox.tim.it > > // By this command I'm able to verify that the modem is > registered to the network > mmcli -m 0 -w > > Output is > /org/freedesktop/ModemManager1/Modem/0: Initial state, > 'registered > > The output of the command > mmcli -m 0 > is: > > /org/freedesktop/ModemManager1/Modem/0 (device id > 'fdecd6b32808f6d001a07e35d54ac8635ac19228') > ------------------------- > Hardware | manufacturer: 'QUALCOMM INCORPORATED' > | model: '0' > | revision: 'UC20EQAR03A04M1024 1 [2014/05/05 > 9:00:00]' > | supported: 'gsm-umts' > | current: 'gsm-umts' > | equipment id: '861075021304068' > ------------------------- > System | device: '/sys/devices/soc0/soc/2100000.aips- > bus/2184200.usb/ci_hdrc.1/usb2/2-1/2-1.2' > | drivers: 'option1, qmi_wwan' > | plugin: 'Generic' > | primary port: 'cdc-wdm0' > | ports: 'ttyUSB0 (qcdm), ttyUSB2 (at), cdc-wdm0 > (qmi), wwan0 (net), ttyUSB3 (at)' > ------------------------- > Numbers | own : 'unknown' > ------------------------- > Status | lock: 'sim-pin2' > | unlock retries: 'sim-pin (3), sim-pin2 (3), sim-puk > (10), sim-puk2 (10)' > | state: 'registered' > | power state: 'on' > | access tech: 'umts' > | signal quality: '36' (recent) > ------------------------- > Modes | supported: 'allowed: 2g; preferred: none > | allowed: 3g; preferred: none > | allowed: 2g, 3g; preferred: none > | allowed: 2g, 3g; preferred: 2g > | allowed: 2g, 3g; preferred: 3g' > | current: 'allowed: 2g, 3g; preferred: none' > ------------------------- > Bands | supported: 'cdma-bc15-aws, dcs, egsm, pcs, g850, > u2100, u900' > | current: 'cdma-bc15-aws, dcs, egsm, pcs, g850, > u2100, u900' > ------------------------- > IP | supported: 'ipv4, ipv6, ipv4v6' > ------------------------- > 3GPP | imei: '861075021304068' > | enabled locks: 'none' > | operator id: '22201' > | operator name: 'TIM' > | subscription: 'unknown' > | registration: 'home' > ------------------------- > SIM | path: '/org/freedesktop/ModemManager1/SIM/0' > > ------------------------- > Bearers | paths: 'none' > > > So, once again, it seems the modem is registered. > However the output of the command > nmcli con > is as follows: > > NAME UUID TYPE > DEVICE > remoteConnection 3c1a500d-fc67-4523-9ba9-6973249a859a gsm > -- > > So it seems that the remoteConnection is not associated with any > device (I think that the device should be cdc-wdm0). > > The output of > nmcli dev > is: > > DEVICE TYPE STATE CONNECTION > can0 can disconnected -- > can1 can disconnected -- > tunl0 ipip disconnected -- > wlan0 wifi disconnected -- > wwan0 wwan disconnected -- > bond0 bond unmanaged -- > eth0 ethernet unmanaged -- > gre0 gre unmanaged -- > gretap0 gretap unmanaged -- > lo loopback unmanaged -- > > And running the command > nmcli con up remoteConnection > I get the error: > Error: Connection activation failed: No suitable device found > for this connection
Hi, in the output of `nmcli device` there is no device named "cdc-wdm0". It seems, to NetworkManager, the device is called differently. Since there is only one wwan typed device, the name seems to be "wwan0"? Also, you don't need to restrict the profile to a device by name, if that doesn't suit you. Just specify an empty name. best, Thomas > > I'm working on an embedded device without gui, and the SW version are > the following ones: > nmcli version 1.0.4 > mmcli version 1.4.2 > I'm not able to upgrade those applications. > > Is there any other test, further investigation that I can perform on > this topic? > Any help will be appreciated > Best regards > Giovanni > > _______________________________________________ > networkmanager-list mailing list > [email protected] > https://mail.gnome.org/mailman/listinfo/networkmanager-list
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