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FIX: After you configure the rules in ISA Server 2006 to apply to all users, ISA Server may sometimes try to authenticate users


View products that this article applies to.

Symptoms

You configure the rules on a Microsoft Internet Security and Acceleration (ISA) Server 2006 computer to apply to all users. After you do this, the ISA Server computer may sometimes try to authenticate users who are running virtual private network (VPN) client computers. When ISA Server rules apply to all users, there is no reason to authenticate users.

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Resolution

To resolve this problem, follow these steps:
  1. On the ISA Server computer, install the hotfix that is described in the following Microsoft Knowledge Base article:
    956925 Description of the ISA Server 2006 hotfix package: August 20, 2008
  2. Run the following Microsoft Visual Basic script on the ISA Server computer.

    Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure. However, they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.
    '------------------------------------------------------------------------DisablePortPermAuthen begin
    Sub AddDisablePortPermissionAuthentication()
    
        ' Create the root obect.
        Dim root  ' The FPCLib.FPC root object
        Set root = CreateObject("FPC.Root")
    
        'Declare the other objects needed.
        Dim array       ' An FPCArray object
        Dim VendorSets  ' An FPCVendorParametersSets collection
        Dim VendorSet   ' An FPCVendorParametersSet object
    
        ' Get references to the array object
        ' and the network rules collection.
        Set array = root.GetContainingArray
        Set VendorSets = array.VendorParametersSets
    
        On Error Resume Next
        Set VendorSet = VendorSets.Item( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
    
        If Err.Number <> 0 Then
            Err.Clear
    
            ' Add the item
            Set VendorSet = VendorSets.Add( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
            CheckError
            WScript.Echo "New VendorSet added... " & VendorSet.Name
    
        Else
            WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value("DisablePortPermissionAuthentication")
        End If
    
        if VendorSet.Value("DisablePortPermissionAuthentication") <> true Then
    
            Err.Clear
            VendorSet.Value("DisablePortPermissionAuthentication") = true
    
            If Err.Number <> 0 Then
                CheckError
            Else
                VendorSets.Save false, true
                CheckError
    
                If Err.Number = 0 Then
                    WScript.Echo "Done with DisablePortPermissionAuthentication, saved!"
                End If
            End If
        Else
            WScript.Echo "Done with DisablePortPermissionAuthentication, no change!"
        End If
    
    End Sub
    
    Sub CheckError()
    
        If Err.Number <> 0 Then
            WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description
            Err.Clear
        End If
    
    End Sub
    
    AddDisablePortPermissionAuthentication
    '------------------------------------------------------------------------DisablePortPermAuthen end
    
    To run this script, follow these steps:
    1. Copy the script to a text editor such as Notepad, and then use a .vbs extension to save the file.
    2. Double-click the .vbs file to run the script.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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More information

To revert to the default behavior that existed before you ran the script that is described in the "Resolution" section, run the following script.
'------------------------------------------------------------------------EnablePortPermAuthen begin
Sub RemoveDisablePortPermissionAuthentication()

    ' Create the root obect.
    Dim root  ' The FPCLib.FPC root object
    Set root = CreateObject("FPC.Root")

    'Declare the other objects needed.
    Dim array       ' An FPCArray object
    Dim VendorSets  ' An FPCVendorParametersSets collection
    Dim VendorSet   ' An FPCVendorParametersSet object

    ' Get references to the array object
    ' and the network rules collection.
    Set array = root.GetContainingArray
    Set VendorSets = array.VendorParametersSets

    On Error Resume Next
    Set VendorSet = VendorSets.Item( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )

    If Err.Number <> 0 Then
        Err.Clear

        ' Add the item
        Set VendorSet = VendorSets.Add( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
        CheckError
        WScript.Echo "New VendorSet added... " & VendorSet.Name

    Else
        WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value("DisablePortPermissionAuthentication")
    End If

    if VendorSet.Value("DisablePortPermissionAuthentication") <> false Then

        Err.Clear
        VendorSet.Value("DisablePortPermissionAuthentication") = false

        If Err.Number <> 0 Then
            CheckError
        Else
            VendorSets.Save false, true
            CheckError

            If Err.Number = 0 Then
                WScript.Echo "Done with EnablePortPermissionAuthentication, saved!"
            End If
        End If
    Else
        WScript.Echo "Done with EnablePortPermissionAuthentication, no change!"
    End If

End Sub

Sub CheckError()

    If Err.Number <> 0 Then
        WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description
        Err.Clear
    End If

End Sub

RemoveDisablePortPermissionAuthentication
'------------------------------------------------------------------------EnablePortPermAuthen end
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

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Keywords: KB956924, kbqfe, kbfix, kbexpertiseinter

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Article Info
Article ID : 956924
Revision : 1
Created on : 11/11/2008
Published on : 11/11/2008
Exists online : False
Views : 310