If you connect a mikrotik 4g modem to the router, then in what mode will the 4g modem work in L2 mode or in L3 mode?

Question

Mikrotik

If you connect a modem to a mikrotik 4g router, then in what mode will the 4g modem work in L2 mode or in L3 mode?

Answer 1

usually with a modem, the session is raised by mikrotik, it also controls the modem, which essentially acts as a transparent "bridge"

Answer 2

Mikrotiks can only HILINK LTE USB modems, so L3
Here is the list https://wiki.mikrotik.com/wiki/Manual:Peripherals#...
In L2, those modems that connect to MiniPCI-e can.
UPD
And look, for a number of LTE modems, a ppp interface has also become available, but again it depends on what firmware the HILINK or STICK modem has.