Two NIC cards with different default gateways?

Discussion in 'Server Networking' started by Andrew, Sep 8, 2006.

  1. Andrew

    Andrew Guest

    I have two web servers that are set up EXACTLY the same except for one is
    Windows 2000 Server and one is Windows 2003 Server. They both have two NIC
    cards in them. One NIC card sits on the DMZ IP space ( and one
    NIC cards sits on the Interal IP space ( On the Windows 2000
    Server machine both NIC cards have default gateways in them ( and respectively). This server works perfectly.

    On the Windows 2003 server, if I try to enter two different default gateways
    on the NIC cards, it flashes a big long paragraph of a warning message. I
    just ignore it and do it anyway. But now all internal network traffic
    ( stops working properly. If I go to the DMZ NIC and remove the
    default gateway and leave it empty, everything goes back to working properly.

    The only problem with this is that these servers are web servers and people
    trying to access them from the internet are NAT'd through our firewall and
    sent to the DMZ interface card on the webserver which in turn doesn't have a
    default gateway specified so the data doesn't know how to get back out.

    My question? What's different about Windows 2003 Server that causes this
    type of setup not to work? Any ideas? Thanks.
    Andrew, Sep 8, 2006
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