Well. Then it only supports ethernet as in setup_inject() it says if (odev->type != ARPHRD_ETHER) { sprintf(info->result, "Not ethernet device: \"%s\"", info->outdev); goto out_unlock; } Weiguang ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html