Article ID: 899476
Article Last Modified on 12/4/2007
APPLIES TO
- Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition
- Microsoft Internet Security and Acceleration Server 2004 Standard Edition
SYMPTOMS
You can log the client computer on to external File Transfer Protocol (FTP) sites. You can do this if the client computer is behind the downstream Microsoft Internet Security and Acceleration (ISA) Server computer that is in a firewall chain. However, if you send commands such as ls to the FTP server, you receive the following reply message, and then you receive no other replies from the server:
CAUSE
The problem occurs if the following conditions are true:
- The firewall chaining is configured in the downstream ISA Server computer.
- The downstream ISA Server computer points to an upstream ISA Server computer.
- The client computer is configured with the firewall client and points to the downstream ISA Server computer.
RESOLUTION
Service pack information
To resolve this problem, obtain the latest service pack for Internet Security and Acceleration Server 2004. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
891024 How to obtain the latest ISA Server 2004 service pack
Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:
Prerequisites
For ISA Server 2004 Standard Edition, you must have Service Pack 1 (SP1) installed. For more information about how to obtain the latest ISA Server 2004 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
891024 How to obtain the latest ISA Server 2004 service pack
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File Information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
ISA Server 2004 Standard Edition
Date Time Version Size File name -------------------------------------------------------------- 16-May-2005 03:57 4.0.2163.269 934,672 Wspsrv.exe
ISA Server 2004 Enterprise Edition
Date Time Version Size File name -------------------------------------------------------------- 01-Jun-2005 08:00 4.0.3440.269 1,058,072 Wspsrv.exe
Note This hotfix is only required on the downstream ISA Server computer.
After you apply the hotfix
After you apply the hotfix on the downstream ISA Server computer, use the following script to manually turn on the EnableDownstreamSecondary option:
Sub AddEnableSecondary()
' Create the root object.
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("EnableDownstreamSecondary")
End If
if VendorSet.Value("EnableDownstreamSecondary") <> true Then
Err.Clear
VendorSet.Value("EnableDownstreamSecondary") = true
If Err.Number <> 0 Then
CheckError
Else
VendorSets.Save false, true
CheckError
If Err.Number = 0 Then
WScript.Echo "Done with EnableDownstreamSecondary, saved!"
End If
End If
Else
WScript.Echo "Done with EnableDownstreamSecondary, 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
AddEnableSecondary
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Internet Security and Acceleration Server 2004 Service Pack 2.
MORE INFORMATION
For more information about how to install ISA Server 2004 hotfixes and updates, click the following article number to view the article in the Microsoft Knowledge Base:
885957 How to install ISA Server hotfixes and updates
For more information about the standard terminology that is used to describe Microsoft software updates, 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
Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB899476
