ipcl_classify
conn_t *ipcl_classify(mblk_t *, ip_recv_attr_t *, ip_stack_t *);
if ((econnp = ipcl_classify(mp, ira, ipst)) != NULL) {
new_connp = ipcl_classify(mp, ira, ipst);
nconnp = ipcl_classify(mp, ira, ipst);