Arpwatch Config Question

We are running Debian Linux Woody on our IDS system that has Arpwatch 
installed.  It is monitoring our whole network.  We have a set range of IP 
addresses that we use when new computers come in that we can put a standard 
image on and then change the IP to a production IP when it is deployed.  So, 
every time a new machine comes on the network that has been imaged and then has 
it's IP changed to another IP address, I get multiple messages from Arpwatch.  
Is there a way to add an argument into the arpwatch.conf file to ignore that 
specific range of IP addresses?  

I had found a command line switch of -z iprange, but that was only available 
for version Sarge.  Any ideas on this one?

Thanks!

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