1<!-- 2 -- ident "%W% %E% SMI" 3 -- 4 Copyright 2005 Sun Microsystems, Inc. All rights reserved. 5 Use is subject to license terms. 6 7 CDDL HEADER START 8 9 The contents of this file are subject to the terms of the 10 Common Development and Distribution License, Version 1.0 only 11 (the "License"). You may not use this file except in compliance 12 with the License. 13 14 You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 15 or http://www.opensolaris.org/os/licensing. 16 See the License for the specific language governing permissions 17 and limitations under the License. 18 19 When distributing Covered Code, include this CDDL HEADER in each 20 file and include the License file at usr/src/OPENSOLARIS.LICENSE. 21 If applicable, add the following below this CDDL HEADER, with the 22 fields enclosed by brackets "[]" replaced with your own identifying 23 information: Portions Copyright [yyyy] [name of copyright owner] 24 25 CDDL HEADER END 26 -- All rights reserved. 27 --> 28<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> 29<html> 30 31<head> 32<title>DHCP Manager Help: How To... Servers and Relays</title> 33<meta NAME="AUTHOR" CONTENT="smorgan"> 34<meta NAME="KEYWORDS" CONTENT="DHCP"> 35 36</head> 37 38<body bgcolor="#FFFFFF"> 39 40<a name="top"></a> 41 42<table border=0 cellspacing=0 cellpadding=0 width=615> 43 44<!-- Start navigation banner --> 45 46<tr><td colspan=4 WIDTH="615" align="center" valign="top"><IMG SRC="art/bannersmc.gif" WIDTH=615 BORDER=0 ALT="DHCP Manager Help"> 47 48 </td> 49 </tr> 50 51<!-- End navigation banner --> 52 53 54<tr> 55 56<!-- Start contents block --> 57 58 <td colspan=1 valign="top" width=105> 59 <P> </P> 60 <A HREF="dhcp_main_top.html"><STRONG>Overview</STRONG></A><P> 61 <A HREF="dhcp_relay_ref.html"><STRONG>Servers and Relays</STRONG></A><P> 62 <A HREF="dhcp_addr_ref.html"><STRONG>IP Addresses</STRONG></A><P> 63 <A HREF="dhcp_macro_ref.html"><STRONG>Macros</STRONG></A><P> 64 <A HREF="dhcp_option_ref.html"><STRONG>Options</STRONG></A><P> 65 66 <A HREF="dhcp_main_how.html"><STRONG>How To..</STRONG></A><BR> 67<IMG SRC="art/tip2.gif" WIDTH=12 HEIGHT=10 BORDER=0 ALT="">Servers and Relays<BR> 68 <A HREF="#srvr"><EM>Configure DHCP</EM></A><BR> 69 <a href="#relay"><EM>Configure BOOTP</EM></a><BR> 70 <a href="#ntwrk"><EM>Configure Network</EM></a><BR> 71 <a href="#delnet"><EM>Delete Network</EM></a><BR> 72 <a href="#adv"><EM>Customize Service</EM></a><BR> 73 <a href="#start"><EM>Start/Stop/Restart</EM></a><BR> 74 <a href="#dis"><EM>Enable/Disable</EM></a><BR> 75 <a href="#exp"><EM>Export/Import</EM></a><BR> 76 <a href="#conv"><EM>Convert Data Store</EM></a><BR> 77 <a href="#uncon"><EM>Unconfigure DHCP</EM></a><BR> 78 <a href="#uncon2"><EM>Unconfigure BOOTP</EM></a><BR> 79 <A HREF="dhcp_addr_how.html">Addresses</A><BR> 80 <A HREF="dhcp_macro_how.html">Macros</A><BR> 81 <A HREF="dhcp_option_how.html">Options</A><P> 82 83<A HREF="dhcp_main_idx.html"><STRONG>Index</STRONG></A> 84 85 </td> 86 87<!-- End contents block --> 88 89<!-- Start column rule --> 90 91 <td colspan=1 width=5 bgcolor="#CCCCCC"> </td> 92 93<!-- End column spacer --> 94 95<!-- Start column spacer --> 96 97 <td colspan=1 width=10 bgcolor="#FFFFFF"> </td> 98 99<!-- End column spacer --> 100 101 102 103<!-- Start topic block --> 104 105<td colspan=1 valign="top" bgcolor="#ffffff"> 106 107 108 109<P> </P> 110<H1>How To: Servers and Relays</H1> 111 112<strong><big><a name="srvr">Configure a DHCP Server</A></big></strong><P> 113When you start DHCP Manager on a Solaris system that has not been configured as either a DHCP server or as a BOOTP relay agent, the Choose Server Configuration dialog box is displayed. You can choose to configure a server as either a DHCP server or as a BOOTP relay agent, but not both.<p> 114<OL> 115<LI><STRONG>Select Configure as DHCP Server.</STRONG><BR> 116The DHCP Server Configuration Wizard starts.<P></LI> 117<LI><STRONG>Step through the configuration, providing the <A HREF="dhcp_config_wiz.html">information</A> requested.</STRONG><BR> 118When the configuration is completed, the DHCP server starts. 119</LI> 120</OL> 121<P> 122To change any of the configuration parameters, you can later <a href="dhcp_macro_how.html#modmacro">modify</a> the macros containing the configuration parameters. Alternatively, you can <A href="#uncon">unconfigure</A> the server and then use the Configuration Wizard to reconfigure the server.<P> 123To customize <A HREF="#adv">DHCP services</A>, select Modify from the Services menu.<P> 124 125<HR NOSHADE><P> 126<strong><big><A NAME="relay">Configure a BOOTP Relay Agent</A></big></strong><P> 127When you start DHCP Manager on a Solaris system that has not been configured as either a DHCP server or as a BOOTP relay agent, the Choose Server Configuration dialog box is displayed. You can choose to configure a server as either a DHCP server or as a BOOTP relay agent, but not both.<p> 128<OL> 129<LI><STRONG>Select Configure as BOOTP Relay.</STRONG><BR> 130The Configure BOOTP Relay dialog box is displayed.<P></LI> 131 132<LI><STRONG>Enter DHCP servers.</STRONG><BR> 133Type the names or IP addresses of one or more DHCP servers to which to relay configuration requests, and click OK. 134<p> 135</LI> 136</OL> 137When the configuration is completed, the BOOTP relay agent starts.<P> 138To customize <A HREF="#adv">BOOTP relay services</A>, select Modify from the Services menu.<P> 139<HR NOSHADE> 140<P> 141<big><STRONG><A NAME="ntwrk">Configure a Network</A></STRONG></big><p> 142When you first configure the DHCP server, the Configuration Wizard configures the first network. To add additional networks, follow these steps.<P> 143<OL> 144<LI><STRONG>Choose Network Wizard from the Edit menu of the View Addresses window.</STRONG><P></LI> 145<LI><STRONG>Enter configuration <A HREF="dhcp_net_wiz.html">information</A> for the new network.</STRONG><P></LI> 146<LI><STRONG>Click OK to confirm your action.</STRONG><P></LI> 147</OL> 148<HR NOSHADE> 149<P> 150<big><STRONG><A NAME="delnet">Delete a Network</A></STRONG></big><p> 151To delete a network is to remove it from the list of networks monitored by the DHCP server. 152<P> 153<OL> 154<LI><STRONG>Click the Addresses tab and choose Delete Network from the Edit menu.</STRONG><BR> 155The Delete Network dialog box is displayed. Configured networks are listed in the Keep Networks list. <P></LI> 156<LI><STRONG>Select the network to delete and use the arrow keys to move it to the Delete Networks list.</STRONG><P></LI> 157<LI><STRONG>Click OK to confirm your actions.</STRONG><P></LI> 158</OL> 159You cannot add a network using this dialog box. To add or restore a network to the DHCP server's list of monitored networks, you must <a href="#ntwrk">configure the network</a>. <P> 160<HR NOSHADE> 161<P> 162<big><STRONG><A NAME="adv">Customize Services</A></STRONG></big><p> 163You can configure DHCP or BOOTP services for your server or BOOTP relay agent. 164<P><OL> 165<LI><STRONG>Choose Modify from the Services menu.</STRONG><br></LI> 166The Modify Service Options dialog is displayed. 167<LI><P><STRONG>Enter configuration information</strong><BR> 168Use the Modify Service Options dialog to customize the <A HREF="dhcp_server_serv.html">DHCP</A> or <A HREF="dhcp_relay_serv.html">Relay</A> services.<P> 169You can configure options such as BOOTP compatibility mode (for the DHCP server) or modify the list of DHCP servers to which to forward requests (relay agent).<P></LI> 170<LI><STRONG>Click OK.</STRONG></LI> 171</OL><P> 172 173<HR NOSHADE><P> 174<strong><big><A NAME="start">Start, Stop, or Restart a Server or Relay Agent</A></big></strong><p> 175The DHCP server or BOOTP relay agent starts 176automatically when you have completed the 177initial configuration. You can stop or start the service by 178choosing Stop or Start from the Services menu. This is analogous 179to running the <tt>/etc/init.d/dhcp</tt> 180script with the <tt>stop</tt> or <tt>start</tt> command.<P> 181 182 <ol type=1> 183 184 <li><STRONG>Choose the Services menu in the main window.</STRONG><p></LI> 185 <li><STRONG>Choose Start, Stop, or Restart from the Service 186menu.</STRONG> 187 <TABLE BORDER="0" CELLSPACING="3" CELLPADDING="3" COLS="2"> 188 189<TR ALIGN="LEFT" VALIGN="TOP"> 190 <TD WIDTH="60" ALIGN="LEFT" VALIGN="TOP"><STRONG>Start</STRONG></TD> 191 <TD ALIGN="LEFT" VALIGN="TOP">Click Start to start DHCP or BOOTP relay 192service that has been stopped.</TD> 193 </TR> 194 195 <TR ALIGN="LEFT" VALIGN="TOP"> 196 <TD WIDTH="60" ALIGN="LEFT" VALIGN="TOP"><STRONG>Stop</STRONG></TD> 197 <TD ALIGN="LEFT" VALIGN="TOP">Click Stop to stop the DHCP or 198BOOTP daemon.</TD> 199 </TR> 200 201<TR ALIGN="LEFT" VALIGN="TOP"> 202 <TD WIDTH="60" ALIGN="LEFT" VALIGN="TOP"><STRONG>Restart</STRONG></TD> 203 <TD ALIGN="LEFT" VALIGN="TOP">Click Restart to force the DHCP server to reread the <tt>dhcptab</tt>.</TD> 204 </TR> 205 206 </TABLE></LI> 207 <LI><STRONG>Click OK to confirm your actions.</STRONG></LI> 208 209 </ol><P> 210 211 <HR NOSHADE><P> 212<strong><big><A NAME="dis">Enable or Disable a Server or Relay Agent</A></big></strong><p> 213Disabling DHCP stops the DHCP daemon and removes it from the boot sequence. When the DHCP service is disabled, it will not start automatically when you reboot the server.<P> 214Enabling DHCP starts the DHCP daemon and restores it to the boot sequence.<P> 215 216 <ol type=1> 217 218 <li><STRONG>Choose the Services menu in the main window.</STRONG><p></LI> 219 <li><STRONG>Choose Enable or Disable from the Services menu.</STRONG> 220 <TABLE BORDER="0" CELLSPACING="3" CELLPADDING="3" COLS="2"> 221 222<TR ALIGN="LEFT" VALIGN="TOP"> 223 <TD WIDTH="60" ALIGN="LEFT" VALIGN="TOP"><STRONG>Enable</STRONG></TD> 224 <TD ALIGN="LEFT" VALIGN="TOP">Click Enable to restore a DHCP service that has been disabled.</TD> 225 </TR> 226 227 <TR ALIGN="LEFT" VALIGN="TOP"> 228 <TD WIDTH="60" ALIGN="LEFT" VALIGN="TOP"><STRONG>Disable</STRONG></TD> 229 <TD ALIGN="LEFT" VALIGN="TOP">Click Disable to remove DHCP service from the boot sequence.</TD> 230 </TR> 231 232 </TABLE></LI> 233 <LI><STRONG>Click OK to confirm your actions.</STRONG></LI> 234 </OL> 235 236 <HR NOSHADE><P> 237<STRONG><big><a name="exp">Export Data From a DHCP Server</a></BIG></STRONG><p> 238If you want to move IP addresses, macros, or options to another Solaris DHCP server, you must first export the data from the owning DHCP server. <p> 239<ol> 240<li><Strong>From the Services menu, choose Export Data.</strong><BR> 241The Export Data wizard is displayed.<p></li> 242<li><strong>Answer the <a href="dhcp_export_wiz.html">prompts</a> to indicate what you want to export.</strong><p></li> 243<li><strong>Click OK to confirm your actions.</strong></li></ol> 244 245<HR NOSHADE><P> 246<STRONG><big><a name="imp">Import Data to a DHCP Server</a></BIG></STRONG><p> 247After exporting IP addresses, macros, or options from a DHCP server, you can import it to another Solaris DHCP server. <p> 248<ol> 249<li><Strong>From the Services menu, choose Import Data.</strong><BR> 250The Import Data wizard is displayed.<p></li> 251<li><strong>Type the full path to the file containing the data you want to import to 252 this DHCP server. </strong><P>This file must have been created by exporting data from a Solaris DHCP server.<p></li> 253<li><strong>Choose Overwrite Existing Data if you want conflicting information on the new server to be replaced with data being imported.</strong><p> 254If the DHCP server on which 255 you are importing data has configuration data 256 for any of the same networks, IP addresses, 257 macros, or options being imported, that data will be 258 replaced with the imported data when 259 you select this option. By default, 260 conflicting data will not be overwritten.<p> 261<li><strong>Click OK to confirm your actions.</strong></li></ol> 262 263<HR NOSHADE> <P> 264<STRONG><BIG><a name="conv">Convert to a New Data Store</a></BIG></STRONG><p> 265The Solaris DHCP service supports several data stores, which are designed for use by 266sites with varying requirements. <p> 267You may need to convert to a new data store if, for 268example, your number of DHCP clients increases to the point that you need higher 269performance or higher capacity from the DHCP service, or if you want to share the 270DHCP server duties among multiple servers.<p> 271<ol> 272<li><Strong>From the Services menu, choose Convert Data Store.</strong><BR> 273The Data Store Conversion wizard is displayed.<p></li> 274<li><strong>Answer the <a href="dhcp_convert_wiz.html">prompts</a> to indicate what you want to export.</strong><p></li> 275<li><strong>Click OK to confirm your actions.</strong></li></ol> 276 277 278<HR NOSHADE><P> 279<STRONG><BIG><a name="#uncon">Unconfigure a DHCP Server</a></BIG></STRONG><p> 280If you no longer want the DHCP server to run on this machine, you can unconfigure the DHCP server. Be sure that responsibility for the addresses owned by the server has been transferred to another DHCP server before you unconfigure the server. See <a href="#exp">Export Data From a DHCP Server</a><P> 281<OL> 282<LI><STRONG>From the Services menu, choose Unconfigure.</STRONG><BR> 283The Unconfigure Service dialog box is displayed.<p></li> 284 285<LI><STRONG>Choose one or both options.</STRONG> 286 287<TABLE BORDER="0" CELLSPACING="3" CELLPADDING="3" COLS="2"> 288 289<TR ALIGN="LEFT" VALIGN="TOP"> 290 <TD WIDTH="160" ALIGN="LEFT" VALIGN="TOP"><STRONG>Remove <tt>dhcptab</tt> and all DHCP network tables</STRONG></TD> 291 <TD ALIGN="LEFT" VALIGN="TOP">Use this option with caution. If you use NIS+, removing these tables may cause a problem for other DHCP servers that share these databases.</TD> 292 </TR> 293 <TR ALIGN="LEFT" VALIGN="TOP"> 294 <TD WIDTH="160" ALIGN="LEFT" VALIGN="TOP"><STRONG>Remove all hosts table entries for DHCP addresses</STRONG> 295 </TD> 296 297<TD>Check this box to also remove entries from the server's hosts name service.</TD></TR> 298</table> 299</LI> 300<LI><STRONG>Click OK to confirm your actions.</STRONG></LI> 301</OL> 302 <P><HR NOSHADE><P> 303 <STRONG><BIG><a name="uncon2">Unconfigure a BOOTP Relay Agent</a></BIG></STRONG><p> 304<OL> 305<LI><STRONG>From the Services menu, choose Unconfigure.</STRONG><BR> 306The Unconfigure Service dialog box is displayed.<p></li> 307<LI><STRONG>Click OK to confirm your actions.</STRONG></LI> 308</OL> 309 <P> 310 <A HREF="#top"><small>return to top</small></A> 311<p> </p> 312 313<!-- Don't go past this line! --> 314 315 </td> 316 317<!-- End topic block --> 318 319</tr> 320 321</table> 322 323<!-- End topic table --> 324 325</body> 326</html> 327
