ipif_arp_down
(void) ipif_arp_down(ipif);
err = ipif_arp_down(ipif);
(void) ipif_arp_down(ipif);
(void) ipif_arp_down(ipif);
(void) ipif_arp_down(ipif);
(void) ipif_arp_down(ipif);
extern int ipif_arp_down(ipif_t *ipif);