2 Domain Servers on same network

I have a w2k server and 2003 server - both are domain controllers of
different domains. Is it possible to run these on same LAN with AD and
DHCP enabled on both without conflict? The reason for this is to
replace the w2k server with the 2003 server after a period of time.

I assume that your question contemplates that you will have client machines
joined to different domains on the same subnet. If these domains are the
same forest, you must ensure that the scope is split between the servers so
that the ranges do not overlap; and you must ensure that whatever DNS server
the scope options point to can resolve both domains or refer/forward to an
appropriate DNS server. If these are separate forests, you may also need to
authorize the DHCP server in the other domain - see:

http://www.microsoft.com/technet/pro.../library/Serve
rHelp/9a4157c4-3c2f-4871-9ffe-7d405781f2cf.mspx

Doug Sherman
MCSE, MCSA, MCP+I, MVP

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> I have a w2k server and 2003 server - both are domain controllers of
> different domains. Is it possible to run these on same LAN with AD and
> DHCP enabled on both without conflict? The reason for this is to
> replace the w2k server with the 2003 server after a period of time.
>