V_dyn_ipv4_parent
CK_SLIST_FOREACH(s, &V_dyn_ipv4_parent[bucket], entry) {
CK_SLIST_FOREACH(s, &V_dyn_ipv4_parent[bucket], entry) {
CK_SLIST_INSERT_HEAD(&V_dyn_ipv4_parent[bucket], s, entry);
DYN_SWAP_PTR(V_dyn_ipv4_parent, ipv4_parent, tmp);
V_dyn_ipv4_parent = NULL;
free(V_dyn_ipv4_parent, M_IPFW);