You can have two Windows Domains on the same LAN.
But, you if you have DHCP installed on both, you will have problems - there
can be only one DHCP server per LAN. Computers find the DHCP server by
broadcast, so, if you have two DHCP servers on the same LAN, you can't
predict which one a given computer will ask to hand out an IP address and
configuration (which usually includes the IP address of the DNS server to
use).
If you really need to have both the Windows Domains on the same LAN, don't
install the DHCP service on the second one. You will probably need to
manually configure the IP configuration on the computers that are members of
the second Windows Domain so they use it for DNS.
You can configure the two DNS servers to "forward" DNS requests to the other
Windows Domain for name resolution across the Domains if you want to.
Unfortunately, the word "domain" is overloaded - DNS domains, Windows
Domains, Ethernet collision domains etc. and they all mean quite different
things.
If you really want to have DHCP installed on both Windows Domains, then you
will need to seperate them into different LANs - e.g. by using a router.
--
Bruce Sanderson
http://members.shaw.ca/bsanders
It is perfectly useless to know the right answer to the wrong question.
"MAdrox" <(E-Mail Removed)> wrote in message
news:a834112e-5cdc-4fbe-be53-(E-Mail Removed)...
>I am working on a project to move our domain to 2003 from 2000. I want
> to bring up a 2003DC and also a separate 2007 Exchange server to test
> and keep them isolated from the 2000 domain. I want to put the 2003 DC
> on the same LAN as the 2000 but it always seems to take over dns\dhcp
> requests. I even set the 2003 to 192.168.x.x and the 2000 is a
> 10.1.x.x.
>
> Any suggestions?
>