extern int preferred_family;
extern char * _SL_;

extern void ip_parse_common_args(int *argcp, char ***argvp);
extern int print_neigh(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
extern int ipaddr_list_or_flush(int argc, char **argv, int flush);
extern int iproute_monitor(int argc, char **argv);
extern void iplink_usage(void) __attribute__((noreturn));
extern void ipneigh_reset_filter(void);
extern int do_ipaddr(int argc, char **argv);
extern int do_iproute(int argc, char **argv);
extern int do_iprule(int argc, char **argv);
extern int do_ipneigh(int argc, char **argv);
extern int do_iptunnel(int argc, char **argv);
extern int do_iplink(int argc, char **argv);
extern int do_ipmonitor(int argc, char **argv);
extern int do_multiaddr(int argc, char **argv);
extern int do_multiroute(int argc, char **argv);