How to find MAC addresses on network?

Chris G cl at
Fri Jan 23 11:57:13 UTC 2009

On Thu, Jan 22, 2009 at 11:04:44PM +0100, Thomas Kaiser wrote:
> Chris G wrote:
> > Is there a (reasonably) straightforward way of finding the MAC
> > addresses of systems (well, strictly, interfaces) on a network?
> > 
> > arping works for some but not all of my hardware, presumably some
> > things (like my HP printer) don't respond to arping.  What can I use
> > to find the MAC address of the printer?
> > 
> Connect to your device somehow (http, print a document) and after run 
> "arp" in a terminal. The MAC addresses of the devices you connected 
> stays in the ARP cache of your computer for some time. "arp" just shows 
> the cache.
Thanks, works for just about everything except the HP printer, that

    hp7310                           (incomplete)                     eth0

Chris Green

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