Need too swap LAN Device IP's

In our network each device is assigned ip’s from mikrotik IP Pool. With some IP has access to the local network server and others don’t. I just want to swap the ip address of the one system (with server permission) to another system(without server permission). Is it possible with src-nat of the local ip.

I am not quite sure i understand the Network / Problem…
But if the Mikrotik-Router is providing IP-Adresses to the Devices on your network
and some Device requires a specific one, simply change it to a Static entry with the needed IP.

need to swap the ip’s of the running systems without restarting the network adapterof the system or 24 port local switch.

How is the client device getting it’s IP? DHCP? Can you not change this in the DHCP to a disallowed IP? src-nat will only work if the MikroTik is routing the traffic, you haven’t mentioned if this is via a routed method or whether the server is on the same flat LAN.