Hi All,

I have been Duck Duck Go'ing looking for how to discover
all the mac addresses on my Ethernet.

http://www.linuxinternetworks.com/how-to-find-out-all-mac-address-on-network/

Says to do:  nmap -sP 192.168.1.0-255

Done that before and it does give you all the mac addresses
on 192.168.1.0/24, but it does not give you mac addresses
for those devices with different network configuration
on your Ethernet.  (Like a stray access point on
192.168.88.0/24 on your Ethernet.)

I have tried these guys' java script:
     http://www.ubnt.com/downloads/discovery/ubnt-discovery-v2.3.zip
It runs but doesn't find anything.   Ran it in an XP VM too
and it struck out there either.

Does anyone know how to get all the mac addresses on your
Ethernet, even the ones configured on another network?

Many thanks,
-T