Re: wireless traffic

[Andrew Brown <twofsonet () graffiti com>]

> > Does anybody know where I can locate a list of MAC address prefixes that
> > belong specifically to wireless NIC cards?  I am looking for a method of
> > discovering what devices on my network are wireless devices.
>
> Power down the wireless hub and see who calls? ;)
>
> Seriously though - your wireless hub/transmitter may have a queryable
> arp table that will tell you what's not using the wire....

i've used/seen cards with these prefixes:

 00:e0:29 - smc
 00:02:2d - orinoco/wavelan cards (lucent/agere)

however, there's nothing to stop the vendor from using a given prefix
for wired cards as well.  more to the point, it's relatively trivial
to change the hardware address of the card, so all bets are off (read
as: mac address filtering is useless).

-- 
|-----< "CODE WARRIOR" >-----|
codewarrior () daemon org             * "ah!  i see you have the internet
twofsonet () graffiti com (Andrew Brown)                that goes *ping*!"
andrew () crossbar com       * "information is power -- share the wealth."