Automatic change of IP and port of peer

RouterOS Scripting
1

Hi friends,

Behind my MT hap ac I have a device which services peers connecting from specific IP and port only.

Naturally, I want to access it from anywhere.

Say:

  1. Device is at InIP and listens to port InPort.
  2. Expected peer IP is CIP and port is CPort
  3. Real peer IP is X and port Y (both unpredictable)

My idea was to make src-nat like if dst-port=InPort the change to-addresses=CIP, to-ports=CPort.

Problem is that I need to add corresponding dst-nat from device InIP to actual X and Y each time peer connects.

I feel this can be achieved via script that monitors connections to InPort and automatically adds/refreshes NAT rules.

Please advise. Maybe I missed better approach.

Thank you very much in advance.