Twin directories of ietf:

[DIR]  ftp://ftp.cs.rutgers.edu/ietf/
[DIR]  ftp://ftp.research.telcordia.com/pub/world/stanm/ietf/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/ietf/
[DIR]  ftp://ftp.registro.br/ietf/
[DIR]  ftp://ftp.ripe.net/mirrors/ietf/
[DIR]  ftp://ftp.w3.org/pub/afs/w3.org/ftp/pub/ietf/
[DIR]  ftp://ftp.isi.edu/ietf/
[DIR]  ftp://ftp.isi.edu/irg/ietf/
[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/cert.dfn/pca/docs/US-pki/ietf/
[DIR]  ftp://ftp.rmt.ru/pub/Mirrors/ftp.ietf.org/ietf/
[DIR]  ftp://ftp.fhg.de/archive/gmd/div/documents/ietf/
[DIR]  ftp://ftp.sztaki.hu/pub/documents/ietf/
[DIR]  ftp://ftp.lip6.fr/pub/www/w3c/ietf/
[DIR]  ftp://ftp.apnic.net/public/ietf/
[DIR]  ftp://ftp.lf.net/pub/doc/ietf/
[DIR]  ftp://sapi.vlsm.org/bebas/v01/internet/ietf/
[DIR]  ftp://ftp.ietf.org/ietf/
[DIR]  ftp://ftp.ietf.org/ietf-mail-archive/ietf/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.nordu.net/ietf/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.nordu.net/ietf-mail-archive/ietf/
[DIR]  ftp://ftp.imag.fr/pub/archive/IETF/ietf/
[DIR]  ftp://ftp.ee.lbl.gov/ietf/
[DIR]  ftp://ftp.technion.ac.il/pub/doc/cert/ietf/
[DIR]  ftp://ftp.nordu.net/ietf/
[DIR]  ftp://ftp.nordu.net/ietf-mail-archive/ietf/
[DIR]  ftp://ftp.dfn-cert.de/pub/pca/docs/US-pki/ietf/
pkg://apache-harmony-src-r653525-snapshot.tar.gz:24320879/apache-harmony-src-r629320/working_classlib/modules/auth/src/test/java/common/org/  downloads[DIR]3  apache-harmony-src-r653525-snapshot.tar.gz/apache-harmony-src-r629320/working_classlib/modules/auth/src/test/java/common/org/ietf/
pkg://apache-harmony-src-r653525-snapshot.tar.gz:24320879/apache-harmony-src-r629320/working_classlib/modules/auth/src/main/java/common/org/  downloads[DIR]3  apache-harmony-src-r653525-snapshot.tar.gz/apache-harmony-src-r629320/working_classlib/modules/auth/src/main/java/common/org/ietf/
pkg://apache-harmony-src-r681495-snapshot.tar.gz:22391933/apache-harmony-src-r653525/working_classlib/modules/auth/src/test/java/common/org/  downloads[DIR]3  apache-harmony-src-r681495-snapshot.tar.gz/apache-harmony-src-r653525/working_classlib/modules/auth/src/test/java/common/org/ietf/
pkg://apache-harmony-src-r681495-snapshot.tar.gz:22391933/apache-harmony-src-r653525/working_classlib/modules/auth/src/main/java/common/org/  downloads[DIR]3  apache-harmony-src-r681495-snapshot.tar.gz/apache-harmony-src-r653525/working_classlib/modules/auth/src/main/java/common/org/ietf/
pkg://apache-ivy-2.0.0-beta1-bin-with-deps.tar.gz:4649740/apache-harmony-src-r681495/working_classlib/modules/auth/src/test/java/common/org/  downloads[DIR]3  apache-ivy-2.0.0-beta1-bin-with-deps.tar.gz/apache-harmony-src-r681495/working_classlib/modules/auth/src/test/java/common/org/ietf/
pkg://apache-ivy-2.0.0-beta1-bin-with-deps.tar.gz:4649740/apache-harmony-src-r681495/working_classlib/modules/auth/src/main/java/common/org/  downloads[DIR]3  apache-ivy-2.0.0-beta1-bin-with-deps.tar.gz/apache-harmony-src-r681495/working_classlib/modules/auth/src/main/java/common/org/ietf/
[DIR]  ftp://ftp.intel.com/pub/ietf/
[DIR]  ftp://ftp.nic.ad.jp/mirror/ietf/
[DIR]  ftp://munnari.oz.au/ietf/
[DIR]  ftp://ftp.privatei.com/pub/ir/ietf/
[DIR]  ftp://wall.etl.go.jp/pub/mime/ietf/
[DIR]  ftp://ftp.informatik.uni-hamburg.de/pub/soft/infosystems/www/ftp.w3.org/ietf/
[DIR]  ftp://ftp.dk.net/mirrors/ftp.ripe.net/mirrors/ietf/
pkg://classpath-0.12.tar.gz:4129732/classpath-0.11/resource/org/  downloads[DIR]3  classpath-0.12.tar.gz/classpath-0.11/resource/org/ietf/
pkg://classpath-0.12.tar.gz:4129732/classpath-0.11/org/  downloads[DIR]3  classpath-0.12.tar.gz/classpath-0.11/org/ietf/
pkg://classpath-0.12.tgz:3323088/classpath-0.12/resource/org/  downloads[DIR]3  classpath-0.12.tgz/classpath-0.12/resource/org/ietf/
pkg://classpath-0.12.tgz:3323088/classpath-0.12/org/  downloads[DIR]3  classpath-0.12.tgz/classpath-0.12/org/ietf/
pkg://classpath-0.14.tar.gz:5349514/classpath-0.13/resource/org/  downloads[DIR]3  classpath-0.14.tar.gz/classpath-0.13/resource/org/ietf/
pkg://classpath-0.14.tar.gz:5349514/classpath-0.13/org/  downloads[DIR]3  classpath-0.14.tar.gz/classpath-0.13/org/ietf/
pkg://classpath-0.14.tbz:4533270/classpath-0.14/resource/org/  downloads[DIR]3  classpath-0.14.tbz/classpath-0.14/resource/org/ietf/
pkg://classpath-0.14.tbz:4533270/classpath-0.14/org/  downloads[DIR]3  classpath-0.14.tbz/classpath-0.14/org/ietf/
pkg://classpath-0.16.tar.gz:5853409/classpath-0.15/resource/org/  downloads[DIR]3  classpath-0.16.tar.gz/classpath-0.15/resource/org/ietf/
pkg://classpath-0.16.tar.gz:5853409/classpath-0.15/org/  downloads[DIR]3  classpath-0.16.tar.gz/classpath-0.15/org/ietf/
pkg://classpath-0.17.tar.gz:6013890/classpath-0.16/resource/org/  downloads[DIR]3  classpath-0.17.tar.gz/classpath-0.16/resource/org/ietf/