Package: ipwatchd

"ipwatchd" package binaries on CentOS:

/usr/sbin/ipwatchd /usr/sbin/ipwatchd-script

You may install this package on CentOS with yum install ipwatchd

"ipwatchd" package binaries on Debian:

/usr/sbin/ipwatchd /usr/sbin/ipwatchd-script

You may install this package on Debian with apt-get install ipwatchd