New Company (NewCo) just bought-out old company (OldCo) and they want us to become part of their NewCo Corporate WAN. In order to have their same look and feel, they want OldCo to make their IP scheme fit NewCo’s scheme. This means re-IPing an AD. 2 DC/Catalog/DNS/DHCP servers (No Exchange), and a bunch of other stuff. I can manage the “other” stuff, but I know AD is going to scream loudly when I start changing IPs on DCs… Anyone out there done this before willing to share their experience and/or offer some sort of road-map?