How to find MAC addresses on network?

[Thomas Kaiser]

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.
> 
> Thomas
> 

use "arp -vn".

Second method:
scan your network eg.: nmap 192.168.0.*
and run "arp -vn" after that.

Thomas