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Xircom CardBus PCMCIA Network Adapter



Some cards do not support promiscuous mode.  Even if a card does, there is
no guarantee that a driver does.  This is not considered a "standard" 
feature of an Ethernet stack, so it is quite common that it is not
available.  In general, if you need a feature like this, you are better
off using a dumb card such as an NE2000 clone rather than a smart one.
Addtron and a few other manufacturers sell cheap NE2000 clone PCMCIA cards
which are useful as network analyzers.  I have no personal experience with
this particular Xircom device, but it is certainly possible that
promiscuous mode is unsupported.

-- Mike


On Wed, 29 Mar 2000, chuck noyes wrote:

>  Has anyone else had problems with the CardBus Ethernet 10/100 + Modem 56
> adapter and promiscuous mode?  I've been trying to run TCPDUMP with my Dell
> laptop, which has this network card, and I can't figure out how to get into
> promiscuous mode.   According to the tcpdump man page, tcpdump -p will not put
> the adapter into promiscuous mode, but I need to see ALL the packets on the
> wire.
> 
> I've looked at Xircom's website, but no luck there.  The tcpdump command
> line looks like this:  tcpdump -v -x -i eth0.  I'm running RH 6.1
> 
> Any ideas on how I can get this to work properly?


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