extern int nd6_storelladdr(struct ifnet *, struct rtentry *, struct mbuf *,
struct sockaddr *, u_char *);
extern int nd6_need_cache(struct ifnet *);
extern int nd6_storelladdr(struct ifnet *, struct rtentry *, struct mbuf *,
struct sockaddr *, u_char *);
extern int nd6_need_cache(struct ifnet *);