An Exception Occurs When Receiving an ICMP Packet on PPP (295924)


The information in this article applies to:

  • Microsoft Windows CE Platform Builder 3.0
This article was previously published under Q295924

SYMPTOMS

An exception in Ipnat occurs if an ICMP packet is received over a PPP connection. This occurs only on devices with RICS processors that include the Ipnat component.

CAUSE

The problem occurs because IPNAT dereferences a USHORT pointer directly from the ICMP header. For PPP connections, IP headers are not aligned (because of PPP framing), so this occurs only on PPP links.

RESOLUTION

A supported software update is now available from Microsoft as Windows CE 3.0 Core OS QFE 17. 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

The English version of this package should have the following file attributes or later: 
   Size         File name
   ---------------------------
   6,015,320    Wce30qfe17.exe
The English version of this fix should contain the following files, with the listed file attributes or later: 
   Date        Time        Size     File name     Platform
   -------------------------------------------------------------
   01/24/2001  04:15am     703,946  Natlib.lib    ARM720 (debug)
   01/24/2001  04:15am     118,784  Natlib.pdb    ARM720 (debug)

   01/24/2001  04:14am     528,392  Natlib.lib    ARM720 (retail)
   01/24/2001  04:14am     118,784  Natlib.pdb    ARM720 (retail)

   01/24/2001  04:13am     703,138  Natlib.lib    SA1100 (debug)
   01/24/2001  04:13am     118,784  Natlib.pdb    SA1100 (debug)

   01/24/2001  04:12am     527,426  Natlib.lib    SA1100 (retail)
   01/24/2001  04:12am     118,784  Natlib.pdb    SA1100 (retail)

   01/24/2001  04:01am     753,400  Natlib.lib    R3000 (debug)
   01/24/2001  04:01am     118,784  Natlib.pdb    R3000 (debug)

   01/24/2001  04:00am     624,266  Natlib.lib    R3000 (retail)
   01/24/2001  04:00am     118,784  Natlib.pdb    R3000 (retail)

   01/24/2001  04:03am     754,120  Natlib.lib    R4100 (debug)
   01/24/2001  04:03am     118,784  Natlib.pdb    R4100 (debug)

   01/24/2001  04:02am     623,732  Natlib.lib    R4100 (retail)
   01/24/2001  04:02am     118,784  Natlib.pdb    R4100 (retail)

   01/24/2001  04:05am     656,332  Natlib.lib    R4111 (debug)
   01/24/2001  04:05am     118,784  Natlib.pdb    R4111 (debug)

   01/24/2001  04:04am     497,712  Natlib.lib    R4111 (retail)
   01/24/2001  04:04am     118,784  Natlib.pdb    R4111 (retail)

   01/24/2001  04:07am     753,400  Natlib.lib    R4300 (debug)
   01/24/2001  04:07am     118,784  Natlib.pdb    R4300 (debug)

   01/24/2001  04:06am     623,726  Natlib.lib    R4300 (retail)
   01/24/2001  04:06am     118,784  Natlib.pdb    R4300 (retail)

   01/24/2001  04:09am     744,226  Natlib.lib    PPC403 (debug)
   01/24/2001  04:09am     118,784  Natlib.pdb    PPC403 (debug)

   01/24/2001  04:08am     553,694  Natlib.lib    PPC403 (retail)
   01/24/2001  04:08am     118,784  Natlib.pdb    PPC403 (retail)

   01/24/2001  04:11am     744,226  Natlib.lib    PPC821 (debug)
   01/24/2001  04:11am     118,784  Natlib.pdb    PPC821 (debug)

   01/24/2001  04:10am     553,694  Natlib.lib    PPC821 (retail)
   01/24/2001  04:10am     118,784  Natlib.pdb    PPC821 (retail)

   01/24/2001  03:56am     757,572  Natlib.lib    SH3 (debug)
   01/24/2001  03:56am     118,784  Natlib.pdb    SH3 (debug)

   01/24/2001  03:55am     596,928  Natlib.lib    SH3 (retail)
   01/24/2001  03:55am     118,784  Natlib.pdb    SH3 (retail)

   01/24/2001  03:58am     757,398  Natlib.lib    SH4 (debug)
   01/24/2001  03:58am     118,784  Natlib.pdb    SH4 (debug)

   01/24/2001  03:57am     596,696  Natlib.lib    SH4 (retail)
   01/24/2001  03:57am     118,784  Natlib.pdb    SH4 (retail)

   01/24/2001  04:17am     696,360  Natlib.lib    ARM720 (debug)
   01/24/2001  04:17am     118,784  Natlib.pdb    ARM720 (debug)

   01/24/2001  04:16am     549,294  Natlib.lib    ARM720 (retail)
   01/24/2001  04:16am     118,784  Natlib.pdb    ARM720 (retail)

   01/24/2001  03:52am     645,372  Natlib.lib    i486 (debug)
   01/24/2001  03:52am     118,784  Natlib.pdb    i486 (debug)

   01/24/2001  03:51am     486,436  Natlib.lib    i486 (retail)
   01/24/2001  03:51am     118,784  Natlib.pdb    i486 (retail)

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
Modification Type:MinorLast Reviewed:8/18/2005
Keywords:kbbug kbfix kbQFE KB295924
©2004 Microsoft Corporation. All rights reserved.