VCSA 6.5 move to different subnet and re-ip

Hello-

I'm looking to move my VCSA 6.5 to a new host that is on a different subnet. It is using FQDN right now.

Currently it's IP -10.121.10.64 /16

Need to move to a host that is - 10.101.x.x /16

Need to know what i should do first, do i move the vcsa to the new host then try to re-ip it or the other way around?

I'm worried that i will lose connection to it either way and not be able to fix it afterwards.

Thanks