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
021package org.apache.directory.server.dhcp.options.vendor;
022
023
024import java.net.InetAddress;
025
026import 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 */
040public class SubnetMask extends AddressOption
041{
042    public SubnetMask()
043    {
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}