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}