MAC address assignments

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

        Where can I find a list of MAC (ethernet) address assignments.

<snip>

        they should not be using and all I have is their MAC address
        (00:20:af:f2:2c:79)

The best one I know of is at Cisco's web page @

http://www.cisco.com/warp/customer/701/33.html

but it does not include the address you are looking for. The IEEE
allocates the address blocks, but doesn't really publish a definitive
list and any compiled list is usually pretty out of date.

-Steve.

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: