Knowledge Base

How to Assign IPX Network Numbers to Multiple Network Cards

Article ID: 125976

Article Last Modified on 11/1/2006

APPLIES TO

Microsoft Windows NT Workstation 3.5
Microsoft Windows NT Server 3.5

This article was previously published under Q125976

You cannot configure a Windows NT computer through the user interface to access two different IPX networks on two different network adapters, each with a different frame type. If you run Control Panel, choose Network, select each adapter, and assign a network number, the same network number is used for both network adapters. In order to provide the network number for each network card, you must modify the Windows NT Registry.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

Start Registry Editor (REGEDT32.EXE).
From the HKEY_LOCAL_MACHINE subtree, go to the following subkey:

SYSTEM\CurrentControlSet\Services\NwlnkIpx\NetConfig\<network card>

where <network card> is the network card you are configuring for a different IPX network.
Remove the entry: NetworkNumber
From the Edit menu, choose Add Value. Add the following:

Value Name: NetworkNumber
Data Type: REG_MULTI_SZ
Data: <Network ID>
If necessary, repeat steps 2 through 4 for each network adapter.
Quit the Registry.
Shutdown and restart Windows NT.

For additional information, please see the following article in the Microsoft Knowledge base:

150546: NWLink IPX/SPX: Network Number vs. Internal Network Number

Additional query words: prodnt nwlink ethernet 802.2 802.3 snap multihomed interface card cards nic nics

Keywords: kbnetwork KB125976

Microsoft KB Archive/125976

How to Assign IPX Network Numbers to Multiple Network Cards