Ethereal-users: Re: [Ethereal-users] Ethereal under Windows 2000 with Interphase 5575 ATM

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From: Guy Harris <guy@xxxxxxxxxx>
Date: Wed, 15 Aug 2001 02:07:55 -0700 (PDT)
> Hello,
> 
> I have a Interphase 5575 ATM adapter. But if I try to setup my capturing
> device to the ATM adapter ethereal stops with:
> The capture session could not be initiated (Cannot determine the network
> type). Please check that you have the proper interface specified.
> 
> Note that the driver Ethereal uses for packet capture on Windows doesn´t
> support capturing on PPP/WAN interfaces in Windows NT/2000."
> 
> Any Ideas?

The error in question probably comes from the WinPcap library/driver;
try capturing on the same device with WinDump - if you get an error
message with "Cannot determine the network type" in it, it's a WinDump
problem.

I don't have the WinPcap source handy (it's at home, not at work, and
I'm at work right now), but it may be that, the WinPcap FAQ
nonwithstanding, it doesn't handle all ATM devices.

I would suggest reporting this problem to the WinPcap developers, by
sending a message to winpcap@xxxxxxxxxxxxxxxxxxxxxxx.