Windows NT Replies to Address Mask Requests (186463)

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

1. Start Registry Editor (Regedt32.exe).
2. Go to the following subkey:
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Paramete
3. Click Add Value on the Edit menu.
4. Create a new value using the following information:
   Value Name: EnableAddrMaskReply Data Type : Reg_DWORD Data : 1 (default=
5. Click OK, close Registry Editor, and restart your computer.