I also want the kmod-usb-net-huawei-cdc-ncm driver because with trustno1 option you only have doppel NAT .

With driver option i can use Modem mode on E3372 not Hilink and so i can use E3372 in same Network.

Under startup i can set echo -e "AT^NDISDUP=1,1,\"xxxproviderxxx\"\r" > /dev/ttyUSB0

Huawei Hilink Switch Driver Download