FIX: Server requests loop back to internal hosts by using NAT in Windows CE .NET 4.2 (839824)


The information in this article applies to:

  • Microsoft Windows CE .NET 4.2

SYMPTOMS

You may have set up a local area network (LAN) to connect to external networks by using Network Address Translation (NAT). If a host on the LAN is exposed because of NAT port mapping, clients on the LAN may not be able to access the exposed host by using the external address.

For example, if NAT is configured to forward port 80 to internal host 192.168.1.2, that host is referenced externally by the address of the NAT router. External hosts that use that address are connected to the 192.168.1.2 host by using NAT. Internal hosts that use that address do not have their traffic forwarded by the NAT router.

RESOLUTION

Software update information

A supported software update is now available from Microsoft as Windows CE 4.2 Core OS QFE 839824. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites

This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you install this update, you must perform a clean build of the whole operating system. To build the operating system, follow these steps:
  1. On the Build menu, click Clean.
  2. On the Build menu, click Build Platform.
You do not have to restart your computer after you apply this update.

Update replacement information

This update replaces 836729.

File information

The English version of this update has the file attributes (or later) 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. 
   Date         Time   Version            Size    File name
   --------------------------------------------------------------

   02-Apr-2004  02:28  4.2.4.331       2,312,952  Wincepb42-040331-kb839824-armv4.exe  
   02-Apr-2004  02:28  4.2.4.331       2,312,952  Wincepb42-040331-kb839824-armv4i.exe  
   02-Apr-2004  02:28  4.2.4.331       2,378,488  Wincepb42-040331-kb839824-mipsii.exe  
   02-Apr-2004  02:28  4.2.4.331       2,378,488  Wincepb42-040331-kb839824-mipsii_fp.exe  
   02-Apr-2004  02:28  4.2.4.331       2,394,872  Wincepb42-040331-kb839824-mipsiv.exe  
   02-Apr-2004  02:28  4.2.4.331       2,394,872  Wincepb42-040331-kb839824-mipsiv_fp.exe  
   02-Apr-2004  02:28  4.2.4.331       2,210,552  Wincepb42-040331-kb839824-sh3.exe  
   02-Apr-2004  02:28  4.2.4.331       2,210,552  Wincepb42-040331-kb839824-sh4.exe  
   02-Apr-2004  02:28  4.2.4.331       2,050,808  Wincepb42-040331-kb839824-x86.exe
The English version of this package has the file attributes (or later) that are listed in the following table. 
   Date         Time   Version            Size    File name
   --------------------------------------------------------------

   Path: Public\Common\Oak\Lib\Armv4\Debug
   27-Mar-2004  00:39                  1,900,878  Ip.lib
   27-Mar-2004  00:39                    887,102  Natlib.lib

   Path: Public\Common\Oak\Lib\Armv4\Retail
   27-Mar-2004  00:39                  1,364,176  Ip.lib
   27-Mar-2004  00:39                    641,016  Natlib.lib

   Path: Public\Common\Oak\Lib\Armv4i\Debug
   27-Mar-2004  00:40                  1,903,396  Ip.lib
   27-Mar-2004  00:40                    888,084  Natlib.lib

   Path: Public\Common\Oak\Lib\Armv4i\Retail
   27-Mar-2004  00:39                  1,366,528  Ip.lib
   27-Mar-2004  00:40                    641,804  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsii\Debug
   27-Mar-2004  00:41                  1,918,868  Ip.lib
   27-Mar-2004  00:41                    884,592  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsii\Retail
   27-Mar-2004  00:40                  1,380,630  Ip.lib
   27-Mar-2004  00:41                    649,206  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsii_fp\Debug
   27-Mar-2004  00:42                  1,919,102  Ip.lib
   27-Mar-2004  00:42                    884,744  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsii_fp\Retail
   27-Mar-2004  00:41                  1,380,872  Ip.lib
   27-Mar-2004  00:42                    649,348  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsiv\Debug
   27-Mar-2004  00:42                  1,943,374  Ip.lib
   27-Mar-2004  00:43                    881,588  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsiv\Retail
   27-Mar-2004  00:42                  1,392,736  Ip.lib
   27-Mar-2004  00:43                    651,062  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug
   27-Mar-2004  00:43                  1,943,606  Ip.lib
   27-Mar-2004  00:44                    881,736  Natlib.lib

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail
   27-Mar-2004  00:43                  1,392,976  Ip.lib
   27-Mar-2004  00:43                    651,212  Natlib.lib

   Path: Public\Common\Oak\Lib\Sh3\Debug
   27-Mar-2004  00:44                  1,639,216  Ip.lib
   27-Mar-2004  00:45                    774,218  Natlib.lib

   Path: Public\Common\Oak\Lib\Sh3\Retail
   27-Mar-2004  00:44                  1,223,836  Ip.lib
   27-Mar-2004  00:44                    590,942  Natlib.lib

   Path: Public\Common\Oak\Lib\Sh4\Debug
   27-Mar-2004  00:45                  1,638,614  Ip.lib
   27-Mar-2004  00:45                    773,846  Natlib.lib

   Path: Public\Common\Oak\Lib\Sh4\Retail
   27-Mar-2004  00:45                  1,220,198  Ip.lib
   27-Mar-2004  00:45                    589,292  Natlib.lib

   Path: Public\Common\Oak\Lib\X86\Debug
   27-Mar-2004  00:38                  1,589,858  Ip.lib
   27-Mar-2004  00:38                    754,280  Natlib.lib

   Path: Public\Common\Oak\Lib\X86\Retail
   27-Mar-2004  00:38                  1,144,660  Ip.lib
   27-Mar-2004  00:38                    563,162  Natlib.lib

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Modification Type:MinorLast Reviewed:5/27/2005
Keywords:kbBug kbfix kbQFE KB839824 kbAudOEM
©2004 Microsoft Corporation. All rights reserved.