Arethere Good Ftp Search And Index Tool? index ftp directories in a lan.

[gentoo 0]

Are there any good tools to search ftp servers in a large lan?It is hoped to create a www search form to search any file in the lan's ftp servers and give the absolute link in the result index page.It seemed that parker can do this.But I can't find the real homepage of it.I will be very glad if you can introduce a new tool with more performance.Appreciate for your help very much!