Private Network and Public Network Link

Discussion in 'Server Networking' started by kris, Apr 5, 2007.

  1. kris

    kris Guest

    Hi all,
    I have a following scenario want all your suggestions on how to do it ?
    I have desktop pcs that are in private network.And I also have One Server in
    public network.I want these desktop pc 's in private network to access the
    Server using Remote desktop or terminal service .And when these desktops pcs
    connect to the server and access the internet ,I want the request from the
    Server to go out as different public ips .So for each session or when each
    desktop connects the Server through rdp ,each of the request from the Server
    to the internet must have a diferent public ip.
    That is giving each client a public ip when they access the internet through
    RDP .
     
    kris, Apr 5, 2007
    #1
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  2. Not gonna happen.

    What you are describing is the old orignal NAT back before the days when they
    figured out how to "overload" a single public IP# with multiple users by using
    the random Client Source Port as a unique identifier in the NAT Table. The old
    form of NAT required and equal number of public IP#s as there were Hosts on the
    private LAN (assuming they are used the Internet at the same time) and used a
    Time-To-Live stamp on the IP-to-IP relationship. It was akward, inefficient,
    horribly unsecure,..and deserved to die,...and it died. I don't know of any NAT
    Devices today that can even do that.

    The NAT being used today under the simple name "NAT",...is really "NAT
    Overload",...but that name has died away as well and is now just referred to as
    "NAT" which is what the old dead method used to be called.

    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
     
    Phillip Windell, Apr 5, 2007
    #2
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  3. To add to my other post,...Sorry, I didn't catch the Remote Desktop element of
    the post the first time around. Remote Desktop does not even figure in or have
    anything to do with NAT. When the users access the internet from the RDP
    session the server is going to be using the Primary IP# of the outbound Nic. It
    doesn't matter how many IP#s you have on the Nic,...it will still show as
    originating from the Primary IP#. It is the way it works.

    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
     
    Phillip Windell, Apr 5, 2007
    #3
  4. kris

    kris Guest

    Ok clean , good ,Now I have an idea on this issue.See shall i catch the RDP
    Session and create a virtual interface at the server .After I create a
    virtual interface when the RDP Session is initiated i will do a ip forwarding
    for the private ip(that has done the RDP request) with the public ip that is
    mapped with the virtual interface.

    Am I progressing in the right way.
    Will this work ?

    Hmmmm need your reply...
     
    kris, Apr 5, 2007
    #4
  5. Create a virtual interface ?
    No. IP Forwarding doesn't map anything to anything. IP Forwarding is just
    normal every-day simple Layer3 routing.
    No.
    According to how I interpret what you are asking,...there is just simply "no
    such thing".

    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
    -----------------------------------------------------
     
    Phillip Windell, Apr 5, 2007
    #5
  6. kris

    kris Guest

    Hi Phillip ,
    I guess you dint get my idea,Let me explain.See whenever RDP
    session is initiated i will create virtual network interface and assign a
    public ip to it.After the creation of Virtual Network interface ,I will
    forward all the traffic to that public ip which was assigned to the virtual
    nic.Its something like having one physical nic with multiple virtual nics....
    Tel me your comments on this..?

    Otherwise pls suggest me an idea as to how we can achieve my scenario.
     
    kris, Apr 6, 2007
    #6
  7. I looked back at the first post to see the original request. There is no such
    "functionality",...what you want cannot be done,...it does not exist.

    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
    -----------------------------------------------------
     
    Phillip Windell, Apr 6, 2007
    #7
  8. kris

    kris Guest

    Hey Phillip ,
    You mean say that we cannot create virtual Nic's .Yes it is
    possible . Try to read about Microsoft Virtual Server and Virtual networks or
    try reading abt the NDIS Mini port development. So I guess I can create
    virtual Nic and assign a ip to it.
    And there are also options to catch the RDP session at the server end using
    the terminal services API ..


    RDP Session Initiated -> Virtual NIC Creation -> New IP -> IP forwarding to
    that new IP


    I guess this should work ....


    Tell me your comments...
     
    kris, Apr 7, 2007
    #8
  9. kris

    Bill Grant Guest

    Yes, you can create virtual NICs in virtual machines and you can create
    virtual networks. But the basic rules of networking and TCP/IP still apply.
    If you really want to waste your time, go ahead.
     
    Bill Grant, Apr 7, 2007
    #9
  10. kris

    kris Guest

    Oh no,Is there any other way where I can create different public ips for each
    RDP session request ????
     
    kris, Apr 7, 2007
    #10
  11. No.


    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
    -----------------------------------------------------


     
    Phillip Windell, Apr 9, 2007
    #11
  12. What you are trying to do has nothing to do with Virtual Server or Virtual PC.


    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft, or
    anyone else associated with me, including my cats.
    -----------------------------------------------------
     
    Phillip Windell, Apr 9, 2007
    #12
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