ire_revalidate_nce
(void) ire_revalidate_nce(ire);
(void) ire_revalidate_nce(ire);
(void) ire_revalidate_nce(ire);
if (ire_revalidate_nce(ire) == ENETUNREACH) {
extern int ire_revalidate_nce(ire_t *);