ire_walk_v6
ire_walk_v6(ip_snmp_get2_v6_route, &ird, zoneid, ipst);
ire_walk_v6(ip_ire_rebind_walker, NULL,
ire_walk_v6(ip_ire_unbind_walker, NULL,
extern void ire_walk_v6(pfv_t, void *, zoneid_t, ip_stack_t *);