IP Source Routing in NT4 -- SP5

Dallas N Bishoff (Dallas.N.Bishofffaa.gov)
Thu, 03 Jun 1999 09:47:44 -0500

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Based on the technet article referenced by Dave LeBlanc at Microsoft (formerly
ISS) in another forum (NTBUGTRAQ), a Microsoft's knowledge base article...

http://support.microsoft.com/support/kb/articles/q217/3/36.asp

..addresses the fact that a computer running Windows NT 4.0 could not disable
the source routing feature for teh TCP/IP protocol. However, after applying SP5
you can disable it by:

1. Start Registry Editor (Regedt32.exe).
2. Locate the following key in the registry:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
  
3. On the Edit menu, click Add Value, and then add the following registry
   value:

   Value Name: DisableIPSourceRouting
   Data Type: REG_DWORD
   Value: 0 or 1
   Note: 1 disables source routing, 0 enables source routing
4. Quit Registry Editor.

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows NT 4.0. This
problem was first corrected in Windows NT version 4.0 Service Pack 5.

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