ppp to the internet trough the nrf9151-dk

hello to all.

i been strugling the last couple of days to make a simple PPP connection from a debian12 laptop to the internet passing trough the nrf9151. I followed the documentation for SLM and modem_shell:

https://docs.nordicsemi.com/bundle/ncs-2.9.1/page/nrf/applications/serial_lte_modem/README.html

https://docs.nordicsemi.com/bundle/ncs-2.9.1/page/nrf/samples/cellular/modem_shell/README.html#modem-shell-application

my projet consists in attaching a raspberry PI to the the nrf9151-dk kit, and make a PPP connection to the internet. Then, ill do everything else (routing, nat, etc) from the raspberry. The only thing i really need is to program the modem in such a way that allows the PPP incoming petition and allow the debian12 to rise a ppp interface that allow me to work with.  I took the sample files of modem_shell and SLM from SDK 2.9.1 and tried to recompile with diferents options. Nothing works.

Linux detects it only as J-link

root@DietPi:~# lsusb
Bus 001 Device 006: ID 1366:1059 SEGGER J-Link
Bus 001 Device 004: ID 0424:7800 Microchip Technology, Inc. (formerly SMSC)
Bus 001 Device 003: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

/dev/ttyACM0

/dev/ttyACM1

/dev/ttyAMA0

usbmodeswitch doesnt seem to find it as a standar modem, so the compiling must be the problem (i guess). Im a total newbie in Nordic.

Is there a sample already build for this?

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