My antivirus just told me it has blocked attacks from a specific IP address.
It is a repeated attack & I would like to know where it comes from.
I tried Visual Route but nothing came up & Karens WhoIs with no result either.

Can anyone recommend any other free software to trace attacks?

Thanks,

You might want to try ethereal and disect the packet data. hxxp://www.ethereal.com it's open source!