Separated L2TP logs

Hello,
I have several “l2tp, ppp, info” logs in my Log Windows. They come from the L2TP-client that cannot auth himself to the L2TP server.

Please, how can I separate those logs from the remeaning “info” logs?
I tried with

/system logging action
add disk-file-name=l2tp name=L2TP target=disk
/system logging
set 0 action=disk
set 1 action=disk
set 2 action=disk
set 3 action=disk
add action=L2TP topics=l2tp,info,ppp

but it doesn’t work

TIA
Stefano

Please tell more than “it does not work”.

thank you for your answer.

in the Log windows i can find all the info logs, including L2TP logs.
I’d like to separate L2TP logs from all the other logs.

Thank you

Then you have to apply filters to both of the logs, with a !l2tp to get anything except l2tp.
Also do not specify all 3 terms because that will be taken as OR, I believe.

It works. Thank you
May the FSM serve you a cold beer