Dual homed DC´s

[Lem]

Hi!


One Active directory domain.
two subnets, subnet A and subnet B.
Some servers like domain controllers ( and exchange2003) should be seen in
both subnets.

If I build DC's with two network cards, one connected to subnet A and second
to subnet B, is it possible to build one domain but still separate
workstations in these two subnets.

Any issues with dual homed w2003 DC servers?

BR, Lem

 

[Laura E. Hunter \(MVP\)]

You can configure clients within a single domain that spans any number of
subnets - your logical and physical structure do not need to be identical in
that regard.

As far as issues with dual-homed 2003 servers, make sure that your DNS
records are set up correctly for each IP address. You should also consider
setting up IP/IPSec filtering to control what types of traffic can be routed
to and from the server.

If your intention is to use the server itself as a router between these two
subnets, use this KB article as a starting point:
http://support.microsoft.com/default.aspx?scid=kb;en-us;323355

 

[Bill Grant]

I would go even further than Laura and say avoid using a DC (or an
Exchange server) as a router if at all possible. There are too many problems
which can arise. And a DC has plenty to do already without adding routing to
it. Use a hardware router or a member server (even a workstation) rather
than a DC.