The Move 3.0 services are now Dockerised and all Move and Move Agent Services now run as Docker Containers.

You maybe running Nutanix Move version 3 and are unable to connect it to hosts that reside on certain internal subnet you have.  it may be that local docker container (Docker0) has also assigned to the same subnet.

This could be addressed buy the following KB article in your Nutanix Portal:

https://portal.nutanix.com/#/page/kbs/details?targetId=kA00e000000PVwkCAG

Ask questions about it, if you are concerned.