How do I setup a simple port forward on Windows Server 2003?

Discussion in 'Windows Networking' started by limr, Jul 2, 2008.

  1. limr

    limr Guest

    I have a windows server 2003 machine behind a firewall. The outside firewall
    has port 1000 forwarded to port 1000 on my windows server machine. I would
    like to forward everything that comes through on port 1000 on my windows
    server machine to port 3000 on another machine that is on the internal
    network somewhere. How do I do this?

    Thanks
     
    limr, Jul 2, 2008
    #1
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  2. The question is, can the firewall you have, do this?
    Forward from eksample "146.245.3.2" outside, to "192.168.0.255" inside. And
    from 1000 to 3000.
     
    Tom Eirik Jensen, Jul 2, 2008
    #2
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  3. Technically there is no such thing as "port forwarding". That is a term
    "invented" by the Home User Market with respect to their "broadband routers"
    (which are not really "routers" either). Ports are Layer4 and they are just
    "addresses",...they are not routable addresses, therefore they cannnot be
    "forwarded" which is a Layer3 routing term. The actual action occurs
    primarily at Layer3 (the IP#) not at Layer4 (Ports). So you could logically
    call it IP Forwarding, except for the fact that the term "IP Forwarding" has
    already been established to mean normal regular IP Routing (hence my comment
    about "forwarding" = "routing" and can't apply to non-routable Layer4
    addresses)

    The technically accurate term would be Reverse NAT or Static NAT when the
    port number stays the same on both sides. If the port number changes that is
    called Port Addess Translation which can run over the top of (combined with)
    the Reverse NAT,...so then that gives you Reverse NAT with Port Address
    Translation (RNAT/PAT)

    Example:
    external internal
    RNAT = 23.234.12.31:1000 -->192.168.1.5:1000
    RNAT/PAT = 23.234.12.31:1000 -->192.168.1.5:1532

    In RRAS it is found in the section of the RRAS MMC called, I believe,
    Services.

    --
    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, Jul 2, 2008
    #3
  4. limr

    limr Guest

    Hi, the firewall is already forwarding port 1000 to my windows machine. I
    have the ability to change settings on the windows server machine so I just
    need to know how to forward port 1000 on my windows machine to port 3000 on a
    machine somewhere else.
     
    limr, Jul 15, 2008
    #4
  5. You don't.
    You go from the Firewall directly to the machien it is supposed to go to on
    the port it is supposed to go on.

    --
    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, Jul 15, 2008
    #5
  6. limr

    limr Guest

    Unfortunately I dont have access to the firewall. I just have the one port
    forwarded through.
     
    limr, Jul 15, 2008
    #6
  7. You have to have access to the firewall.

    --
    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, Jul 15, 2008
    #7
  8. limr

    dispair1981 Guest

    OMG, I can not believe you got this much run around for such a simple
    question. YES this can be done Router<--->Server<---->Network. It is
    done everyday. No you do not need access to the firewall. because the
    port is already forwarded there. Windows server 2003 is acting as the
    router in this case or a bridge between his ISP box and his network.

    ANSWER:

    Administrative Tools >
    Routing and Remote Access >
    ServerName >
    IP Routing > NAT/Basic Firewall >
    Right-Click on your NIC-1 LAN >
    Properties >
    Services & Ports Tab >
    Add... >
    Enter Incoming Outgoing Port and IP of the workstation
     
    dispair1981, Jan 15, 2009
    #8
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