ia_ifp
ia->ia_ifp = ifp;
ia->ia_ifp = ifp;
ia->ia_ifp = NULL;
(ia->ia_ifp->if_flags & IFF_MULTICAST) == 0) {
imo->imo_ifidx = ia->ia_ifp->if_index;
if (ia6_best->ia_ifp == oifp && ifp != oifp)
if (ia6_best->ia_ifp != oifp && ifp == oifp)
if (oifp == ia6_best->ia_ifp)
ia6->ia_ifp = ifp;
ia6->ia_ifp = NULL;
ia6->ia_ifp->if_xname,
ia6->ia_ifp->if_xname,
ia6->ia_ifp->if_xname);