196 lines
5.6 KiB
HTML
196 lines
5.6 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>DHCP Address Release Notification Exit Program</title>
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Begin Header Records ========================================= -->
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<!-- XTODARLS SCRIPT A converted by B2H R4.1 (346) (CMS) by KENTALA -->
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<!-- at RCHVMW2 on 21 Oct 1998 at 18:17:46 -->
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<!--File Edited Oct 2001 by Janet Brauckman -->
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<!--End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="Top_Of_Page"></a>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>DHCP Address Release Notification Exit Program</h2>
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<div class="box" style="width: 70%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Reason for release</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Client IP address</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="left" valign="top">Length of client IP address</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">Client identifier</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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<tr>
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<td align="center" valign="top">5</td>
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<td align="left" valign="top">Length of client identifier</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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</table>
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<br>
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Exit Point Name: QIBM_QTOD_DHCP_ARLS<br>
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<!-- iddvc RMBR -->
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<br>
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Exit Point Format Name: DHCR0100<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The DHCP Address Release Notification exit program allows for notification
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each time the DHCP server releases an IP address from its specific client host
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assignment binding.</p>
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<p>An address could have been released from the client that it was bound to for
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one of the following reasons:</p>
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<ol>
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<li>The client explicitly sent a DHCP RELEASE request to the DHCP server.</li>
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<li>The lease duration that the client was last given for using the IP address
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has expired.</li>
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<li>A DHCP server administrator has explicitly released the IP address.</li>
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</ol>
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<p>When an exit program is added to the exit point, it is called whenever the
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DHCP server releases an IP address from the specific client host that it had
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been assigned to. This is for notification purposes only, and no data is
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expected to be sent back to the DHCP server from the exit program. The exit
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program will be sent information about the IP address, the identity of the
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client, and the reason for the IP address being released.</p>
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<br>
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<!-- Please NOTE: DO NOT DELETE THIS SECTION if this API has no authorities and locks. -->
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<!-- Instead, use the commented out coding below to indicate NONE. -->
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<h3>Authorities and Locks</h3>
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<!-- Use this if there are no authorities and locks. -->
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<p>None.</p>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Reason for release</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>A reason that the DHCP server has released the IP address from being bound
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to the specific client host. The possible values are:</p>
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<table cellpadding="3">
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<!-- cols="5 95" -->
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<tr>
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<td align="left" valign="top"><em>1</em></td>
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<td align="left" valign="top">The DHCP server received a DHCP RELEASE packet
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from the client.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>2</em></td>
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<td align="left" valign="top">The duration of the lease that the client was
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last given for use of the IP address has expired.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3</em></td>
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<td align="left" valign="top">The release is forced by DHCP server
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administrator.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Client IP address</strong></dt>
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<dd>INPUT; CHAR(*)
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<p>The Internet Protocol (IP) address that was just released from its client
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host binding. This string is in dotted decimal format and left-justified.</p>
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</dd>
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<dt><strong>Length of client IP address</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The length (in bytes) of the client IP address.</p>
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</dd>
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<dt><strong>Client identifier</strong></dt>
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<dd>INPUT; CHAR(*)
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<p>The unique identifier of the client from which the IP address has been
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released. This is usually the hardware address of the client machine.</p>
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</dd>
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<dt><strong>Length of client identifier</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The length (in bytes) of the client identifier string.</p>
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</dd>
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</dl>
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<br>
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<hr>
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Exit program introduced: V4R2
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center">
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<a href="#Top_Of_Page">Top</a> |
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<a href="ss1.htm">Server Support APIs</a> |
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<a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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