Strange firewall behavior

RouterOS General
1

This is very nice way to kick yourself from router:

Just type: /ip firewall filter chain=input dst-port=22 action=drop

Normaly I should put protocol name within this roule, but I didn’t. So what to expect:

  1. Error - missing protocol - NO
  2. Port 22 is disabled on all protocols - NO
  3. All protocols on all ports are disabled - YES

You cannot do this from winbox because it won’t let you specify port wihout protocol.

And yes os=2.9.26 hw=rb500