No spiffy install script, sorry.

I recommend copying the contents of this directory
to /usr/local/arpdetect.

Edit arpdetect.xml to suit your needs.  Specifically, setup
a network with the IP of a host that is commonly up and its
hardware address; then define actions for that network.

It's easy to run arpdetect, just execute 
'arpdetect -c /path/to/arpdetect.xml'

Or, edit the supplied init.d-arpdetect and move it to 
/etc/init.d/arpdetect


== REQUIRED PERL MODULES ==
Getopt::Long
XML::Simple
Proc::Daemon
Net::Netmask

You can find these on http://search.cpan.org, or install them
by using the CPAN module (supplied with many distributions).
Execute it by issuing this at the command line:

perl -MCPAN -e 'shell'