Twin directories of ipv6:

[DIR]  ftp://82.96.64.7/pub/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.eutelia.it/pub/Sunsite_Mirror/kernel.org/pub/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors2/ftp.kernel.org/pub/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://debian.lcs.mit.edu/pub/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://199.6.1.164/pub/scm/linux/kernel/git/rdunlap/linux-docs/net/ipv6/
[DIR]  ftp://15.201.72.13/ftp2/pub/alphaserver/archive/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/teigland/origin-dlm.git/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/teigland/origin-dlm.git/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/jejb/merge-tree/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/jejb/merge-tree/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/glommer/kvmclock.git/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/glommer/kvmclock.git/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/bkcvs/linux-2.5/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/bkcvs/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs/net/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git/net/ipv6/
[DIR]  ftp://ftp.registro.br/ietf/ipv6/
[DIR]  ftp://ftp.ripe.net/ripe/ipv6/
[DIR]  ftp://ftp.ripe.net/mirrors/ietf/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/amd64/packages-8-current/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-8-current/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-7.1-release/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-7.0-release/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-7-stable/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-6.4-release/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-6.3-release/ipv6/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/i386/packages-6-stable/ipv6/
[DIR]  ftp://ftp.cprm.net/.disk2/kernel/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.datacomm.ch/pub/mirror/ftp.kernel.org/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.skynet.be/mirror2/suse.com/people/kukuk/ipv6/
[DIR]  ftp://ftp.kreonet.re.kr/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.cs.helsinki.fi/pub/Software/Linux/Kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.isi.edu/ietf/ipv6/
[DIR]  ftp://ftp.telstra.net/pub/FreeBSD/ports/amd64/packages-8-current/ipv6/
[DIR]  ftp://129.21.60.34/pub/linux/kernel/people/marcelo/linux-2.4/net/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/debian/linux-image-2.6.28-libre-fsf2/lib/modules/2.6.28-libre-fsf2/ke/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/i386/i386/packages-5-stable/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/debian/linux-headers-2.6.28-libre-fsf2/usr/src/linux-headers-2.6.28-l/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/net/netfilter/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/net/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/ia64/packages-7-current/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/ia64/packages-6-stable/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/i386/packages-8-current/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/i386/packages-7.1-release/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/i386/packages-7.0-release/ipv6/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/i386/packages-7-stable/ipv6/