[NCLUG] how to 'ping' a MAC address ?

[Gabriel L Somlo]

Hi,

Does anyone know how I could "ping" a machine if all I had was its MAC
address ?

The scenario in which this would be useful: two machines on the same
network come up with the same IP address by accident. I don't know
which one of a few hundred machines the impostor really is, but I have
a tree of switches and if I could send some packets to the impostor's MAC
I could follow the blinkenlights on the switches and find out which port
it's attached to...

So, how would you go about firing off a burst of packets directed at a
MAC rather than at an IP ? 


Thanks,

Gabriel


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     Gabriel L.  Somlo                   Assistant System Administrator
Computer Science Department
 Colorado State University               e-mail: somlo at cs.colostate.edu
  601 Howes St. 2nd Floor                 phone: +1 (970) 491-5305
  Fort Collins,  CO 80523
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