001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    
021    package org.apache.directory.server.dns.io.encoder;
022    
023    
024    /**
025     * 2. New resource record definition and domain
026     * 
027     *    A record type is defined to store a host's IPv6 address.  A host that
028     *    has more than one IPv6 address must have more than one such record.
029     * 
030     * 2.1 AAAA record type
031     * 
032     *    The AAAA resource record type is a record specific to the Internet
033     *    class that stores a single IPv6 address.
034     * 
035     *    The IANA assigned value of the type is 28 (decimal).
036     * 
037     * 2.2 AAAA data format
038     * 
039     *    A 128 bit IPv6 address is encoded in the data portion of an AAAA
040     *    resource record in network byte order (high-order byte first).
041     * 
042     * 2.3 AAAA query
043     * 
044     *    An AAAA query for a specified domain name in the Internet class
045     *    returns all associated AAAA resource records in the answer section of
046     *    a response.
047     * 
048     *    A type AAAA query does not trigger additional section processing.
049     * 
050     * 2.4 Textual format of AAAA records
051     * 
052     *    The textual representation of the data portion of the AAAA resource
053     *    record used in a master database file is the textual representation
054     *    of an IPv6 address as defined in [3].
055     * 
056     * 2.5 IP6.ARPA Domain
057     * 
058     *    A special domain is defined to look up a record given an IPv6
059     *    address.  The intent of this domain is to provide a way of mapping an
060     *    IPv6 address to a host name, although it may be used for other
061     *    purposes as well.  The domain is rooted at IP6.ARPA.
062     * 
063     *    An IPv6 address is represented as a name in the IP6.ARPA domain by a
064     *    sequence of nibbles separated by dots with the suffix ".IP6.ARPA".
065     *    The sequence of nibbles is encoded in reverse order, i.e., the
066     *    low-order nibble is encoded first, followed by the next low-order
067     *    nibble and so on.  Each nibble is represented by a hexadecimal digit.
068     *    For example, the reverse lookup domain name corresponding to the
069     *    address
070     * 
071     *        4321:0:1:2:3:4:567:89ab
072     * 
073     *    would be
074     * 
075     *    b.a.9.8.7.6.5.0.4.0.0.0.3.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.1.2.3.4.IP6.
076     *                                                                   ARPA.
077     * 
078     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
079     * @version $Rev: 501160 $, $Date: 2007-01-29 20:41:33 +0100 (Mon, 29 Jan 2007) $
080     */
081    public class Inet6AddressRecordEncoder
082    {
083    }