nd6_ns_output
nd6_ns_output(ifp, NULL, &satosin6(dst)->sin6_addr, &saddr6, 0);
nd6_ns_output(ifp, NULL, &dst->sin6_addr,
nd6_ns_output(ifp, &dst->sin6_addr, &dst->sin6_addr,
nd6_ns_output(ifp, &dst->sin6_addr, &dst->sin6_addr,
void nd6_ns_output(struct ifnet *, const struct in6_addr *,
nd6_ns_output(ifp, NULL, &ia6->ia_addr.sin6_addr, NULL, 1);