"ipfilter.dat" file is compatiable with eMule.

please refer to: 

http://www.emule-project.net/home/perl/help.cgi?l=1&rm=show_topic&topic_id=142

&

http://www.bluetack.co.uk/convert.html

&

http://forum.emule-project.net/index.php?showtopic=10128&hl=ipfilter


you may also download one predefined ipfilter.dat at:

http://www.morph-mod.de/morph/ipfilter/ipfilter.dat

http://www.iespana.es/IPFILTER/ipfilter.dat
