IN6_IFF_PREFER_SOURCE
if ((flags6 & IN6_IFF_PREFER_SOURCE) != 0)
DEF_CMD("prefer_source",IN6_IFF_PREFER_SOURCE, setip6flags),
DEF_CMD("-prefer_source",-IN6_IFF_PREFER_SOURCE,setip6flags),
if ((addr.flags & IN6_IFF_PREFER_SOURCE) != 0) {
if ((ia_best->ia6_flags & IN6_IFF_PREFER_SOURCE) == 0 &&
(ia->ia6_flags & IN6_IFF_PREFER_SOURCE) != 0)
if ((ia_best->ia6_flags & IN6_IFF_PREFER_SOURCE) != 0 &&
(ia->ia6_flags & IN6_IFF_PREFER_SOURCE) == 0)