"Company B" will be providing managed services for "Company A".
Existing network (domain controller) at "Company A" cannot be physically plugged into our network "Company B" as it has been infected with various variants of virus and we would like to extract all relevant A.D & DNS related records from "Company A" and import them into a brand new domain controller on a network in "Company B".
Is this possible and What is the process for keeping these separate networks under one subnet? Will bringing in an additional domain into existing "Company B" subnet cause any issues with existing infrastructure? More below.
The main objectives:
Two active directory domains & domain controllers separate from one another in a single subnet
separate DHCP scopes
separate group policy, etc..