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.dhcp.options.vendor;
022    
023    
024    import java.net.InetAddress;
025    
026    import org.apache.directory.server.dhcp.options.AddressOption;
027    
028    
029    /**
030     * The subnet mask option specifies the client's subnet mask as per RFC
031     * 950.
032     * 
033     * If both the subnet mask and the router option are specified in a DHCP
034     * reply, the subnet mask option MUST be first.
035     * 
036     * The code for the subnet mask option is 1, and its length is 4 octets.
037     *
038     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
039     * @version $Rev: 638228 $, $Date: 2008-03-18 08:12:41 +0200 (Tue, 18 Mar 2008) $
040     */
041    public class SubnetMask extends AddressOption
042    {
043        public SubnetMask()
044        {
045        }
046        
047        /**
048         * @param netmask
049         */
050        public SubnetMask(InetAddress netmask)
051        {
052            setAddress( netmask );
053        }
054    
055    
056        /*
057         * @see org.apache.directory.server.dhcp.options.DhcpOption#getTag()
058         */
059        public byte getTag()
060        {
061            return 1;
062        }
063    }