+ 0 Votes 2 Domains 1 subnet Problems? Feedback? mkrom 6 years ago I have a simular problem. In your case, if you did not want to share network wiring and resources I would just Company B's network in and have it connect to the Internet using a 2nd IP address from your ISP, T1 and Cable normally provide more then one IP address per customer. My problem is wanting to move company server and workstation right on Company A network. This would allow Company A amd B to share network wiring and resources such as printers. I believe it would require disabling company B DHCP and changing Company B AD controller IP address. I would like to get the feedback of someone that has made a simular move.