K 10 svn:author V 3 hrs K 8 svn:date V 27 2014-05-16T15:53:31.302957Z K 7 svn:log V 328 Cancel DAD for an ifa when the ifp has ND6_IFF_IFDISABLED as early as possible and do not clear IN6_IFF_TENTATIVE. If IFDISABLED was accidentally set after a DAD started, TENTATIVE could be cleared because no NA was received due to IFDISABLED, and as a result it could prevent DAD when manually clearing IFDISABLED after that. END