Bulk update of routers

RouterOS General
17

For example, you simply need to create a function like this:

if ( ros_command(":put [:len [/ip firewall filter find where src-address=66.77.88.99]]") > 0
     , ros_command("/ip firewall filter add action=accept chain=input dst-address=11.22.33.44 dst-port=8291 protocol=tcp src-address=66.77.88.99 place-before=([find]->0)")
     , "rule exist"
   )

However, obviously, it is difficult to explain "The Dude" from scratch.

That is a sample script, but if the script is written correctly, you can do anything...

ros_command("/ip firewall filter add action=accept chain=input dst-address=11.22.33.44 dst-port=8291 protocol=tcp src-address=66.77.88.99 place-before=([find]->0)")