1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 21 package org.apache.directory.server.dhcp.options.dhcp; 22 23 24 import java.net.InetAddress; 25 26 import org.apache.directory.server.dhcp.options.AddressOption; 27 28 29 /** 30 * This option is used in DHCPOFFER and DHCPREQUEST messages, and may 31 * optionally be included in the DHCPACK and DHCPNAK messages. DHCP 32 * servers include this option in the DHCPOFFER in order to allow the 33 * client to distinguish between lease offers. DHCP clients use the 34 * contents of the 'server identifier' field as the destination address 35 * for any DHCP messages unicast to the DHCP server. DHCP clients also 36 * indicate which of several lease offers is being accepted by including 37 * this option in a DHCPREQUEST message. 38 * 39 * The identifier is the IP address of the selected server. 40 * 41 * The code for this option is 54, and its length is 4. 42 * 43 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 44 * @version $Rev: 638228 $, $Date: 2008-03-18 07:12:41 +0100 (Di, 18 Mär 2008) $ 45 */ 46 public class ServerIdentifier extends AddressOption 47 { 48 public ServerIdentifier() 49 { 50 } 51 52 53 public ServerIdentifier(InetAddress localHost) 54 { 55 setAddress( localHost ); 56 } 57 58 59 /* 60 * @see org.apache.directory.server.dhcp.options.DhcpOption#getTag() 61 */ 62 public byte getTag() 63 { 64 return 54; 65 } 66 }