system/checkconf/bad-rate-limit-ipv6-prefix-length.conf

/*
 * Copyright (C) 2016  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

options {
    rate-limit {
        ipv6-prefix-length 65; // max 64
    };
};