Two separate forests on the same subnet

[zephyran]

Can two separate Active Directory forests coexist on a single subnet within the same LAN without interfering with each other? Computers in both would all have static IP configurations (mostly XP, with a couple NT4) with manually-configured DNS and WINS entries.

We have an existing domain that we want to gradually phase out while developing a brand new domain with mostly new computers. Some of the computers from the old domain would be migrated to the new one, though most would be new.

We realize that creating a new subnet via VLANs is the optimum way to do this, but there is a push (that we cannot ignore) to run both concurrently on the same VLAN.

There's no "I" in "TEAM".
But there's no "U" either.
So if I'm not on the team, and you're not on the team, then nobody's on the team!

 

[mrdenny]

Yes you can do this.

Denny
MCSA (2003) / MCDBA (SQL 2000)
MCTS (SQL 2005 / Microsoft Windows SharePoint Services 3.0: Configuration / Microsoft Office SharePoint Server 2007: Configuration)
MCITP Database Administrator (SQL 2005) / Database Developer (SQL 2005)

--Anything is possible. All it takes is a little research. (Me)

http://www.mrdenny.com

 

[WhoKilledKenny]

When we did NT to 2000 migration we placed DC's in seperate VLANS to control SMB broadcasts. We were not sure of the impact broadcasts would have on WINS. Since our NetBIOS domain names were not the same, we saw no impact.