http://degas.is.utsunomiya-u.ac.jp/~zhao/freesw/ipsec_ja.txt

http://www.ascii.co.jp/linux/linuxmag/IPv6/ RacoonにおけるさまざまなIDの取り扱い http://www.ascii.co.jp/linux/linuxmag/IPv6/Racoon_ID.html

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/ja/security-guide/s1-ipsec-host2host.html

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/ja/security-guide/s1-ipsec-net2net.html