Re: manage a modem connection
On lun., mars 29 2021, Aleksander Morgado wrote: Hey Thanks for your answeer. I have a "e3372h-153" Huawei 4G USB dongle. This dongle works with the "huawei_cdc_ncm" kernel driver. Once connected, two devices appear : /dev/ttyUSB0 and /dev/cdc-wdm1. These ones are used to talk to the modem itself. There is also a network interface appearing, which is (I believe) related to the driver "huawei_cdc_ncm" and the NCM protocol : wwx001e101f: flags=4098 mtu 1500 ether 00:1e:10:1f:00:00 txqueuelen 1000 (Ethernet) I am able to connect the modem with "mmcli ...", yet still I have to configure the corresponding network interface in order to access the web. When using only ModemManager/mmcli this is expected, yes. You need to look for the connected bearer details (e.g. mmcli -b 0 probably) and then apply the IP addressing changes showed there. I cannot find any bearer. But this interface does not show up with "nmcli device show". I am however able to issue "dhclient wwx001e101f" and it works. NetworkManager does not refer to the modem based on the network interface it exposes, it refers to the modem based on the primary control port exposed by the modem (e.g. cdc-wdm0 probably). Ok, I understand, "nmcli -m 0" gives : System | device: /sys/devices/pci:00/:00:14.0/usb1/1-1/1-1.1/1-1.1.3 | drivers: huawei_cdc_ncm, option1 | plugin: huawei | primary port: ttyUSB0 |ports: cdc-wdm1 (at), ttyUSB0 (at), wwx001e101f (net) so, there are two control ports and one data port. NetworkManager defaults to the primary port : ttyUSB0: déconnecté "Intel Sunrise Point-LP 3.0 xHCI" gsm (huawei_cdc_ncm, option1), hw I also tried "nm-connection-editor". This one finds the modem (gsm) but it seems to settle a connection through ppp.I would prefer a connection through wwx001e101f because it uses the NCM protocol, known to be faster than PPP. This is the way to go. If ModemManager doesn't use the cdc-wdm port plus the network interface for the connection, there must be a reason for that, we need to find why. Do the cdc-wdm and the net port show up in the list of ports reported in "mmcli -m 0"? yes, but I tried again, nm-connection-editor lets me choose "Mobile Connection", but I see settings for PPP. Then, how come that I cannot see and configure wwx001e101f with nmcli, just like any other network (wired, wifi) interface ? Because that interface is a modem network interface, and so the main interface that NetworkManager would refer to is the control port, not the data port (as the data port is chosen dynamically on runtime). Ok, I understand. Maybe this is because NetworkManager sees ttyUSB0 first and then thinks it is a PPP connection. How could I make NetworkManager consider only cdc-wdm1 (in my case) ? Regards ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: manage a modem connection
Hey > > I have a "e3372h-153" Huawei 4G USB dongle. > > This dongle works with the "huawei_cdc_ncm" kernel driver. > > Once connected, two devices appear : /dev/ttyUSB0 and > /dev/cdc-wdm1. > These ones are used to talk to the modem itself. > > There is also a network interface appearing, which is (I believe) > related to the driver "huawei_cdc_ncm" and the NCM protocol : > > wwx001e101f: flags=4098 mtu 1500 > ether 00:1e:10:1f:00:00 txqueuelen 1000 (Ethernet) > > I am able to connect the modem with "mmcli ...", yet still I have > to configure > the corresponding network interface in order to access the > web. When using only ModemManager/mmcli this is expected, yes. You need to look for the connected bearer details (e.g. mmcli -b 0 probably) and then apply the IP addressing changes showed there. > But this > interface does not show up with "nmcli device show". I am however > able to > issue "dhclient wwx001e101f" and it works. > NetworkManager does not refer to the modem based on the network interface it exposes, it refers to the modem based on the primary control port exposed by the modem (e.g. cdc-wdm0 probably). > I also tried "nm-connection-editor". This one finds the modem > (gsm) but it seems to > settle a connection through ppp.I would prefer a connection > through wwx001e101f > because it uses the NCM protocol, known to be faster than PPP. > This is the way to go. If ModemManager doesn't use the cdc-wdm port plus the network interface for the connection, there must be a reason for that, we need to find why. Do the cdc-wdm and the net port show up in the list of ports reported in "mmcli -m 0"? > Then, how come that I cannot see and configure wwx001e101f > with nmcli, just like > any other network (wired, wifi) interface ? Because that interface is a modem network interface, and so the main interface that NetworkManager would refer to is the control port, not the data port (as the data port is chosen dynamically on runtime). -- Aleksander https://aleksander.es ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
manage a modem connection
Hello, I have a "e3372h-153" Huawei 4G USB dongle. This dongle works with the "huawei_cdc_ncm" kernel driver. Once connected, two devices appear : /dev/ttyUSB0 and /dev/cdc-wdm1. These ones are used to talk to the modem itself. There is also a network interface appearing, which is (I believe) related to the driver "huawei_cdc_ncm" and the NCM protocol : wwx001e101f: flags=4098 mtu 1500 ether 00:1e:10:1f:00:00 txqueuelen 1000 (Ethernet) I am able to connect the modem with "mmcli ...", yet still I have to configure the corresponding network interface in order to access the web. But this interface does not show up with "nmcli device show". I am however able to issue "dhclient wwx001e101f" and it works. I also tried "nm-connection-editor". This one finds the modem (gsm) but it seems to settle a connection through ppp. I would prefer a connection through wwx001e101f because it uses the NCM protocol, known to be faster than PPP. Then, how come that I cannot see and configure wwx001e101f with nmcli, just like any other network (wired, wifi) interface ? Thanks in advance for your kind attention Regards ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
