ncec_walk
ncec_walk(NULL, ip_snmp_get2_v4_media, &ird, ipst);
ncec_walk(NULL, ip_snmp_get2_v6_media, &ird, ipst);
ncec_walk(NULL, ip2mac_cancel_callback, &ip2m_wdata, ipst);
ncec_walk(ill, ncec_delete_per_ill, ill, ill->ill_ipst);
ncec_walk(ill, ncec_mcast_reap_one, ill, ill->ill_ipst);
ncec_walk(NULL, ncec_cache_reclaim, &fraction, ipst);
ncec_walk(ipmp_ill, ncec_delete_per_ill, ipmp_ill, ipst);
ncec_walk(ocastill, ipmp_ncec_delete_nonlocal, ocastill,
extern void ncec_walk(ill_t *, ncec_walk_cb_t, void *, ip_stack_t *);