~~TOC~~
yum install arpwatch
chkconfig arpwatch on
service arpwatch start
subject: new station (apc.mgmt.polaire.nl) hostname: apc.mgmt.polaire.nl ip address: 1.2.3.4 ethernet address: 0:c0:b7:95:ca:fe ethernet vendor: AMERICAN POWER CONVERSION CORP timestamp: Tuesday, June 24, 2014 21:48:39 +0200