NWLNKIPX Sends Broadcast RIPX Packets Over the Network

NWLNKIPX sends the broadcast Routing Information Protocol over IPX (RIPX) packet over the network, even if a frame type and network number is selected manually.

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:
After applying this fix, use the steps below to create a new registry value.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. 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" online Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" online Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

1. Run Registry Editor (Regedt32.exe).
2. Go to the following key in the registry:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \NwlnkIpx\Paramete
   
   NOTE: The above registry key is one path; it has been wrapped for readability.
3. On the Edit menu, click Add Value and use the following entry:
   Value Name: NoBcastRipRequest Data Type: REG_Dword Value: 0 or 1 Default:
   
   Description: This parameter determines if NWLNKIPX sends the Broadcast RIPX packet during initialization. Set this value to 1, if you do not want to send a Broadcast RIPX packet during initialization.
4. Close Registry Editor.
5. Restart the computer for the registry change to take effect.

Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

When NWLNKIPX starts, Routing Information Protocol over IPX (RIPX) broadcasts are sent to determine the frame type and network number. This RIPX packet is needed only if the auto-detect feature of NWLNKIPX is selected.