Hi!

I configured some filter firewall rules using the "In.Interface list". Rules are ok and working.
I have created new list under Interface>Interface List called "remote sites".

The follwing configuration:

Interface list:

List Interface

remote sites <l2tp-no1>
remote sites <l2tp-no2>
remote sites <l2tp-no3>

Everything is working, I can track in log for firewall rule what is blocked by all interfaces included in interface list "remote sites".
But, when some of l2tp reconnects you have this:

Interface list:

List Interface

remote sites unknown
remote sites <l2tp-no2>
remote sites unknown

The firewall rule is working ok again because it knows what interface was included before in the list, but the logging stops.

Why mikrotik does not but back the correct name of the this dynamic interface in the interface list how was configured at start?
You can select manually again the interface on the place where says "unknown" but this is little pain to do everytime when some of the l2tp´s reconnects.

Thank in adavance.

use scripting on the ppp profile to update the lists. you can add on-up and on-down scripts.
dynamic interfaces can seem difficult to work with, on the server side, but once you set the right scripts everything works well

Thanks for a tip!
I choose under ppp profile intreface list name "remote sites". No need for ppp scripts.
it is working!