Twin directories of ip-filter:

[DIR]  ftp://ftp.kfki.hu/pub/packages/security/ip-filter/
[DIR]  ftp://ftp.kreonet.re.kr/tools/network/ip-filter/
[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/cert.dfn/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.dfn-cert.de/pub/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.dlut.edu.cn/pub1/unix/Firewall/ip-filter/
[DIR]  ftp://ftp.starhub.net.sg/pub/funet/unix/security/firewalls/ip-filter/
[DIR]  ftp://147.52.159.12/networking/security/ip-filter/
[DIR]  ftp://ftp.ausmac.net/disk1/security/firewalls/ip-filter/
[DIR]  ftp://ftp.padua.org/pub/net/ip-filter/
[DIR]  ftp://ftp.gbnet.net/pub/security/ip-filter/
[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/ftp.funet.fi/pub/unix/security/firewalls/ip-filter/
[DIR]  ftp://ftp.wuppy.net.ru/src/ip-filter/
[DIR]  ftp://coombs.anu.edu.au/pub/net/firewall/ip-filter/
[DIR]  ftp://coombs.anu.edu.au/pub/net/ip-filter/
[DIR]  ftp://ftp.gw.com/mirrors/unix/ip-filter/
[DIR]  ftp://ftp.su.se/pub/security/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.uni-siegen.de/pub/cert-security/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.man.szczecin.pl/pub/security/firewalls/ip-filter/
[DIR]  ftp://ftp.gwdg.de/pub/cert.dfn/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.funet.fi/pub/unix/security/firewalls/ip-filter/
[DIR]  ftp://ftp.jp.xemacs.org/pub/net/ip-filter/
[DIR]  ftp://ftp.zedz.net/pub/security/firewalls/ip-filter/
[DIR]  ftp://core.ring.gr.jp/sha256.d/net/ip-filter/
[DIR]  ftp://core.ring.gr.jp/md5.d/net/ip-filter/
[DIR]  ftp://core.ring.gr.jp/manifest.d/net/ip-filter/
[DIR]  ftp://core.ring.gr.jp/ls-lR.d/net/ip-filter/
[DIR]  ftp://core.ring.gr.jp/pub/net/ip-filter/
[DIR]  ftp://202.18.64.24/pub/net/ip-filter/
[DIR]  ftp://133.37.44.6/pub/net/ip-filter/
[DIR]  ftp://ftp.task.gda.pl/vol/zfs/coombs.anu.edu.au/pub/net/ip-filter/
[DIR]  ftp://203.16.234.85/pub/ip-filter/
[DIR]  ftp://ftp.st.ryukoku.ac.jp/pub/security/tool/ip-filter/
[DIR]  ftp://ftp.nrc.ca/pub/packages/security/ip-filter/
[DIR]  ftp://130.237.164.232/pub/security/tools/net/packet_screen/ip-filter/
[DIR]  ftp://ftp.it.su.se/pub/security/tools/net/packet_screen/ip-filter/
[DIR]  ftp://www.nadir.org/pub/security/firewalls/ip-filter/
[DIR]  ftp://ftp.task.gda.pl/vol/zfs2/coombs.anu.edu.au/pub/net/ip-filter/
[DIR]  ftp://nic.funet.fi/pub/unix/security/firewalls/ip-filter/