93 lines
5.8 KiB
HTML
93 lines
5.8 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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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="dc.language" scheme="rfc1766" content="en-us" />
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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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<meta name="dc.date" scheme="iso8601" content="2005-09-13" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<title>Point to point virtual Ethernet IP address conflicts</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="rzahqipcpi"></a>
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<h3 id="rzahqipcpi">Point to point virtual Ethernet IP address conflicts</h3>
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<p>IBM iSeries Integrated Server Support uses IP addresses in the range of
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192.168.x.y for the integrated server's point to point Ethernet network. By
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default, the actual addresses are selected by the i5/OS Install Windows server
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(INSWNTSVR) command. For details and examples, see <a href="rzahqipdpd.htm#rzahqipdpd">Assign point to point virtual Ethernet IP addresses</a> .
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Depending on your network, there might be conflicts with addresses that are
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already in use. To avoid potential conflicts you can use the VRTPTPPORT parameter
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for an Integrated xSeries® Server or the Integrated xSeries Adapter
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attached xSeries server.</p>
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<p>If a conflict requires you to change the addresses, you must ensure that
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the point to point virtual Ethernet occupies its own subnet on i5/OS. The
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subnet mask that is used is 255.255.255.0. To ensure that the point to point
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virtual Ethernet is on its own subnet, use IP addresses of the form a.b.x.y,
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where a.b.x is the same value for both sides of the point to point virtual
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Ethernet. Also verify that the value of a.b.x is unique on your network.</p>
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<p>To change the point to point virtual Ethernet addresses because of a conflict,
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take the following action.</p>
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<ol type="1">
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<li>At the i5/OS console, enter the command <tt>DSPNWSD
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NWSD(name) OPTION (*PORTS)</tt>. Make a note of the <tt>Attached</tt> line for the port number <tt>*VRTETHPTP</tt>, which is also known as the line description.</li>
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<li>Use the Configure TCP (CFGTCP) command and option 1 to display the TCP
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interfaces. Make a note of the IP address and the subnet mask associated
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with the line description that you found in step 1.</li></ol>
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<dl>
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<dt class="bold"><span class="bold">Note:</span></dt>
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<dd>An IP address entered at the Windows console for the point to point
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virtual Ethernet overrides the values that are set in the NWSD for the TCPPRTCFG
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parameter <tt>*VRTETHPTP</tt>.
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</dd>
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</dl>
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<ol type="1">
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<li>Click on <span class="bold">Start</span>—><span class="bold">Settings</span>–><span class="bold">Control Panel</span>, then <span class="bold">Network
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and Dial-up Connections</span>.</li>
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<li><img src="delta.gif" alt="Start of change" />Right-click the correct <span class="bold">Local Area Connection</span> for the point to point virtual Ethernet and select <span class="bold">Properties</span> from the menu.<img src="deltaend.gif" alt="End of change" /></li>
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<li>Select <span class="bold">TCP/IP Protocol</span> from the list of installed
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protocols and press the <span class="bold">Properties</span> button to display
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the TCP/IP properties.</li>
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<li>Change the IP address for the new value that you have selected.</li>
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<li>Click <span class="bold">OK</span>, then <span class="bold">Close</span> to close
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the application.</li>
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<li>Shut down the integrated Windows server without doing a restart.</li>
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<li>On i5/OS, vary off the NWSD.</li>
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<li>Use the Remove TCP/IP interface (RMVTCPIFC) command with the IP address
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you recorded in step 2.</li>
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<li>Use the Add TCP/IP interface (ADDTCPIFC) command to add the new interface.
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Use the IP address that you selected for the i5/OS side of the point to point
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virtual Ethernet. You also need to enter the subnet mask and line description
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that you recorded in steps 1 and 2.</li>
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<li>On the i5/OS command line, type <tt>CHGNWSD NWSD(name)</tt>, and press F4.
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<ol type="a">
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<li>Page down to the section labeled <tt>TCP/IP port configuration</tt>.</li>
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<li>Change the IP address in the <tt>Internet address</tt> field
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for the port <tt>*VRTETHPTP</tt> to the value that you
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used in step 3. Press Enter for the change to take effect.</li>
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<li>Vary on the NWSD.</li></ol>
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<dl>
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<dt class="bold"><span class="bold">Note:</span></dt>
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<dd><img src="delta.gif" alt="Start of change" />If you are installing multiple servers, to avoid further
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conflicts, assign point to point virtual Ethernet IP addresses (see <a href="rzahqipdpd.htm#rzahqipdpd">Assign point to point virtual Ethernet IP addresses</a>) instead of letting the INSWNTSVR command generate them.
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The <tt>Virtual PTP Ethernet port</tt> parameter allows
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you to enter IP addresses that you know to be unique on your system.<img src="deltaend.gif" alt="End of change" />
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</dd>
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</dl></li></ol>
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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