How to implement redirection to another PC on mikrotik?

Question

System administration

Good day. There is mikrotik 751, port forwarding is configured on it for 4 computers. Is it possible to implement such a scheme: when one computer is turned off, automatically redirect the packets intended for it to another? As I understand it, the script should be based on pings. If the ping is not coming to PC1, redirect all packets for PC1 to PC2. Correct line of thought?

Answer 1

Create NetWatch and set it on the IP of the first PC.
There are two translation rules in NAT, the first to the first PC, the second to the second.
By Netwatch Down you deactivate the upper rule, by UP you activate it.

Answer 2

Mikrotik sends packets to IP.
Here is the IP and intercept - heartbeat, for example.