Hi,
I have a PPP connection brought up by pppd running on a ttyUSB connection
to an LTE modem, which is managed by ModemManager. When pppd is started
after simple-connecting the modem using ModemManager it is able to get an
IP address fine (which can be seen from ifconfig and ip route etc.) and I
can connect to the network using the modem. However, nmcli shows the ppp0
connection as disconnected.
How can I configure NetworkManager to see the PPP connection properly? Is
it possibly related to the pppd plugin since we have libnm-ppp-plugin.so
present in /usr/lib/NetworkManager/1.14.4 but the log does not show any
pppd plugin being loaded:
> NetworkManager[285]: <info> [1552534718.0779] Loaded device plugin:
> NMAtmManager (/usr/lib/NetworkManager/1.14.4/libnm-device-plugin-adsl.so)
> NetworkManager[285]: <info> [1552534718.1004] Loaded device plugin:
> NMOvsFactory (/usr/lib/NetworkManager/1.14.4/libnm-device-plugin-ovs.so)
> NetworkManager[285]: <info> [1552534718.1181] Loaded device plugin:
> NMWifiFactory (/usr/lib/NetworkManager/1.14.4/libnm-device-plugin-wifi.so)
This is running on an iMX7 based board using Yocto. I have added
> --enable-ppp=yes
> --with-pppd-plugin-dir=${libdir}/pppd/2.4.5
to the networkmanager recipe file.
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