RE: SMP Bluetooth Authentication Inusfficient

LukeC — Wed, 26 Oct 2022 21:02:04 GMT

I also believe you need to increase the following from 10 to something higher for the SMP example:

CONFIG_BT_L2CAP_TX_BUF_COUNT

Vidar Berg — Wed, 24 Aug 2022 06:58:45 GMT

Hello,

You should only get this authentication error if you have CONFIG_MCUMGR_SMP_BT_AUTHEN is enabled in your project. However, this symbol is disabled by default in the bt overlay file: https://github.com/nrfconnect/sdk-zephyr/blob/v3.0.99-ncs1-branch/samples/subsys/mgmt/mcumgr/smp_svr/overlay-bt.conf#L9, so I would not expect this error with the original sample code.

Could you please double check the .config output to verify that it is not enabled in your build?

Here is where the SMP characteristic permission levels gets set:

Best regards,

Vidar