On Tue, 2025-01-28 at 06:20 +0000, Brendan Simon wrote: > > IND.T Classification: External > > > > I am using a Debian 10 Buster Linux system with ModemManager 1.10 > (yes I know it's old, and we have tried Debian 12 Bookwork with MM > 1.20) and cannot get a Cinterion PLS63 device to connecto the > internet. MM seems happy enough with it. It is detected and I can > show status information with mmcli command. > > > I have successfully connected over many years with this setup using a > Quectel EC21 modem, but cannot connect with this new Cinterion PLS63 > modem. > > > One difference is that the device seems to show up as a network > interface enxNNNNNN and not wwan0 , which is what the EC21 shows up > as. > Is this expected?
No, if the kernel drivers have the right bits. > Is this the issue? If so, how can I get it to show up as a > wwan0 device? The kernel drivers "tag" the device as a WWAN device instead of a regular USB Ethernet device, and that's how it gets wwan0. These patches seems relevant and were merged for the 5.11 kernel: https://lore.kernel.org/all/20210126044245.8455-1-gciof...@gmail.com/ https://lore.kernel.org/all/20210120045650.10855-1-gciof...@gmail.com/ I think Buster has a 4.19 kernel? I'll bet your kernel doesn't have those two patches. Dan > > > Some posts mention udev rules and port type hints. Is this what I > should be looking at and are there any example or suggested settings > for this modem? > > > I tried using NetworkManger to setup a connection using the > enx interface, but thenmtui utility did not recognise it. > > > Thanks, > Brendan.