On 12/21/07, Ashley M. Kirchner <ashley@xxxxxxxxxx> wrote: > > Is there a command line tool that can get me from '123.235.126.232' > to '123.232.0.0/14' or even to '123.232.0.0:123.235.255.255'? I use aggis (http://www.lafferty.ca/files/software/aggis) - it's about 10-15 years old, but I've not had a problem making it work with a modern version of perl. It has lots of features and does exactly what you want it to do and more.