North American Network Operators Group
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Re: wireless traffic
- From: Steven M. Bellovin
- Date: Fri Nov 09 11:31:41 2001
In message <20011109104400.A6249@noc.untraceable.net>, Andrew Brown writes:
>
>>> 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)
>
I'm sending this via a Lucent card with prefix 0:60:1d. A glance at my
ARP table for a wireless-only segment shows 0:4:dd, 0:3:6b, 8:0:20,
0:0:c, 0:c0:b7, 0:d0:b7, 8:0:6a, and more.
--Steve Bellovin, http://www.research.att.com/~smb
Full text of "Firewalls" book now at http://www.wilyhacker.com
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