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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: wireless traffic
Way Back When, I think that IEEE was the party that handed out prefixes to be used as MAC addresses. I know several people have compiled lists at one time or another. There's a neat little app for palm OS handhelds called Ethertools*, that had a reasonably comprehensive list of the well-known ones. (*Of course similarly formatted MAC addresses are present on other multi-access mediums as well. I recall pulling out a lot of hair figuring out how 3Com ended up with what looked like two MAC's on every token-ring card. Turned out to be the same address, but token ring was small-endian vs. big-endian. Or vice versa.) -----Original Message----- From: Steven M. Bellovin [mailto:[email protected]] Sent: Friday, November 09, 2001 10:29 AM To: Andrew Brown Cc: [email protected]; Art Houle; [email protected] Subject: Re: wireless traffic In message <[email protected]>, 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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