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2 networks on one Win2003-server

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  • 2 networks on one Win2003-server

    Hi,

    At our company we have 2 internetconnections.

    Connection 1: External users can login through RDP.
    Connection 2: Used for outgoing traffic, such as websites.

    On connection 2 there is a VPN-connection to an external office.

    Both connection are properly configures on a Windows 2003-server, but for some strange reason I cannot access RDP trhough Connection 1.

    When I open the site www.whatsmyip.com it gives the WAN-IP of connection 2.

    How can I combine these two connections?

    I've uploaded an situation drawing as attachment.
    Attached Files

  • #2
    Re: 2 networks on one Win2003-server

    Check if u have 2 Default Gateway Addresses with "route print" and fix it if it is

    Comment


    • #3
      Re: 2 networks on one Win2003-server

      So you are indicating that when you RDP into that 2003 server, then you open a browser from that RDP session, your public IP comes back as connection 2? Well, I think that would be expected as you indicated that connection 2 is used for internet connectivity. Your RDP traffic is not related to the traffic that you created when you opened a browser on that server to access the internet.

      How can you combine the two networks...options depend? Can you elaborate on what you are trying to accomplish?
      JM @ IT Training & Consulting
      http://www.itgeared.com

      Comment


      • #4
        Re: 2 networks on one Win2003-server

        The server must use connection 1 (subnet 192.168.254.x for internet access), so RDP clients can connect to this server via the internet.

        See attachtments for more explanation of the situation.
        Attached Files

        Comment


        • #5
          Re: 2 networks on one Win2003-server

          Well don't use multiple gateways in the first place.
          Unsupported and will give you loads of issues.

          Remove the gateway for the internal network and replace it with static routes.

          Actually IMHO it's basic network knowledge, whereby you should understand where a default gateway is used for.
          A default gateway is only being used when no other routes in the routing table gives a match. Only then it will use the default gateway.

          Since you want to use the internet feed behind 192.168.254.1 device it's gonna be a pain in the ass to put the complete internet in a static routing table.
          Secondly if I look at your other NIC, it seems you only have one other network, 172.16.x.x/16. At first glance it seems there are no CIDR or VLANs on the internal network.
          So there is no need for to add a default gateway for internal traffic.
          Last edited by Dumber; 25th November 2011, 20:39.
          Marcel
          Technical Consultant
          Netherlands
          http://www.phetios.com
          http://blog.nessus.nl

          MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
          "No matter how secure, there is always the human factor."

          "Enjoy life today, tomorrow may never come."
          "If you're going through hell, keep going. ~Winston Churchill"

          Comment


          • #6
            Re: 2 networks on one Win2003-server

            Hi Marcel,

            So if I understand it correct. I can leave the default gateway for the internal network blank? And only set the default gateway for the NIC which is connected to the internet for RDP, etc.

            Best regards,

            Joost

            Comment


            • #7
              Re: 2 networks on one Win2003-server

              That's right.
              Marcel
              Technical Consultant
              Netherlands
              http://www.phetios.com
              http://blog.nessus.nl

              MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
              "No matter how secure, there is always the human factor."

              "Enjoy life today, tomorrow may never come."
              "If you're going through hell, keep going. ~Winston Churchill"

              Comment

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