Try http://www.cavebear.com/CaveBear/Ethernet/vendor.html Once upon a time, Geoff White arranged the electrons in @Home's private BackBone to write:

Subject: MAC address assignments (Jan 26, 3:32pm)

Folks, Where can I find a list of MAC (ethernet) address assignments. i.e. blocks of addresses were assigned to various companies. for example 8:0:20:xx:xx:xx is most likely a Sun machine 00:c0:7b:xx:xx:xx is some form of ascend router.

I'm trying to track down someone who is using an IP address that they should not be using and all I have is their MAC address (00:20:af:f2:2c:79)

I can take my answer off line

geoffw

End of included message written by Geoff White on Jan 26, 3:32pm,

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