active directory over multiple vlans

Posted on 2008-11-07
Last Modified: 2013-11-25
I have the following AD structure:

1 forest with 1 DC/GC
6 multiple sub-domains on six different vlans.  su-domain 1 is on same subnet as the dc/gc
currently, only one wins and dns server and that is on the dc/gc

from network neighborhood, I can only see the dc/gc and sub-domain 1, which is on the same vlan as the dc/gc.  I can't see the other sub-domains, yet, replication, dns lookup and ping works to the other domains.  I need to get this resolved as a server application that I am running depends on windows enumeration of the domains.  Can someone tell me why this is happening and what I need to do to resolve this issue?
Question by:txagcol1
    LVL 31

    Expert Comment

    by:Henrik Johansson
    Browsing is using NetBIOS which is not routable if not enabling NetBIOS over TCP/IP (NetBT) or the clients is configured to use WINS.

    Not related to the browsing issue, but as described in the question, you should also configure atleast 2 servers as GC in each AD-site and atleast 2 DNS servers to get redundancy and avoid SPOF when the single GC/DNS is restarted. Configure each DC acting as DNS to use another DNS as secondary DNS.

    Author Comment

    so, you're saying that we should not be using wins?  As for the second issue, I agree.  Just have had time to do the other implermentations.
    LVL 31

    Accepted Solution

    No, WINS is used for browsing.
    If you have multiple WINS servers, you nead to configure them to use the other servers as replicating partners.

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