EM9291/8695 RedCap L2 bridge mode

Hello,

I wonder if there is a documentation about how to enable bridge mode for EM9291 and/or EM8695 RedCap modules. We are in a pre-study phase checking the capabilities of Semtech 5G modules, comparing the features with our current solution using Quectel modules.
Quectel provides the command AT+QMAP for setting up VLAN assignment per PDN, is this also possible with Semtech modules?
We are looking for a way to setup the module in fully transparent mode, so DHCP request from devices connected to the modem are forwarded to the private core network. It should be possible to run non-IP traffic (like profinet) over the cellular link without the need of setting up GRE or VXLAN tunnelling.

Not sure if this mbpl application helps:

I can see there is vlan.0

You can also have a look on the document " Software_Integration_and_Development_Guide_for_Linux_USB_Platforms_R36":

https://source.sierrawireless.com/resources/airprime/software/mbpl/mbpl-software-latest/#sthash.ZXRwiiKx.PAGK4epl.dpbs

There is a section “Example – Establish multiple PDN connections
over the MBIM (USB) Interface” which shows two vlan with multiple PDN connection

Hi @jyijyi ,

if I understand @stefan.fischer correctly the key requirement is support for PDN type “non-IP” on EPC and/or PDU Session type “Ethernet” on 5G SA.
@stefan.fischer there is a libqmi merge requst to add initial support for that https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/374.

Regards,
Reinhard