I am on a Win32 machine for now. And Net::DNS is a bit buggy on Win32 from the link you sent. But to explain it more clearly. I have a range of IP addresses that are pinged to see what live machines are on the network. I then look up from a live ip the host name. I need to get the computer name from computer_name.company.com but sometimes our dns/dhcp systems resolves to a name of computer_name-udp12345678.company.com