From: "Peña, Botp" <botp@...>
Date: 2008-08-02T11:31:25+09:00
Subject: Re: Determining MAC address

From: Glen Holcomb [mailto:damnbigman@gmail.com] 
# Thanks for the ARP suggestion, I might be interested.  Some 
# of the machines in question are on the same VLAN however others
# are not.  Right now the values have to be entered manually and 
# for my area that isn't too big of a pain as I only have around 70
# machines.  However to go institution wide that would be a giant
# headache so any automation would be better than none.

arps do not cross beyond networks, you'll have to gather the data fr the junctions. if you have access to the routers/switches, you can see the arp table. If you use telnet or ssh, you can create a script to automate and collate everything. A nice project would be to create a map of your network showing wc nodes are connected to wc switch/router...

kind regards -botp