rfc5158.txt:Geoff Huston:apnic:australia:12:mar:2008:UNKNOWN:seccons,ianacons:draft-huston-6to4-reverse-dns:2007-12-20:2007-03-19:87:12:153:19:271:0:2004-01-23:0::2004-01-23:1151:2008-03-17:92