Thank you, Tim. I published a fixed version: http://jodies.de/ipcalc-archive/ipcalc-0.41.tar.gz > I contacted the author (Krischan Jodies - > <http://www.jodies.de/>) on the 7th, > offering them 14 days to respond but have had no > reply to acknowledge that > the problem even exists, I've decided to publish > this warning. No, you did not contact me. Your mail reached my mailserver, but was rejected, due to the invalid local part: 2006-07-06 16:32:00 F=<timb nth-dimension org uk> rejected RCPT <ipcalc-a@xxxxxxxxx>: Unrouteable address Regards, Krischan