[Winpcap-users] multi-NICs with the same name in Win98

Gianluca Varenni gianluca.varenni at cacetech.com
Fri Nov 3 16:23:16 GMT 2006

This is a known problem with WinPcap on windows 9x systems.

The only workaround is manually modify some keys in the registry to have 
unique adapter names.

    a. open the registry(regedit.exe)
    b. go to HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Class/Net
    c. you will find some folders named 0000,0001,0002...; each one 
       to a network device.
       each of these folders has a subfolder named NDIS, which contains
       a key named "LogDriverName": it contains the names of the adapters,
       as shown by winpcap. Locate the two 0000/0001/....  folders of the
       adapters with the same name in winpcap, and change the LogDriverName 
       one of them (for example from "rtl8029" to "rtl8029-b").
    d. close regedit and reboot.

This procedure should work (on my machine it does), HOWEVER, I do *not* take 
any responsibility for this operation. Handling Windows registry is always a
possibly dangerous operation.

Have a nice day

----- Original Message ----- 
From: "bugtraq" <bugtraq at 163.com>
To: <winpcap-users at winpcap.org>
Sent: Thursday, November 02, 2006 5:58 PM
Subject: [Winpcap-users] multi-NICs with the same name in Win98

> Hi,
> I  have a Win98 machine with 3 identical NICs(only MAC addresses are
> different). The adapter name is "Intel(R) PRo/100+ PCI Adapter", and
> the LogDriverName is E100B-100. In Win98, Winpcap uses LogDriverName to 
> open
> the adapter, so I  wonder Winpcap can deal with such conditions
> correctly . That is,  If I open the adapter by LogDriverName "E100b-100"
> and send some packets, which NIC will the packets pass through?
> Does anyone know? Thanks
> -- 
> bugtraq <bugtraq at 163.com>
> _______________________________________________
> Winpcap-users mailing list
> Winpcap-users at winpcap.org
> https://www.winpcap.org/mailman/listinfo/winpcap-users 

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