99 lines
6.3 KiB
HTML
99 lines
6.3 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Title" content="Scenario: Share a modem between logical partitions using L2TP" />
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<meta name="abstract" content="You have virtual Ethernet set up across four logical partitions. Use this scenario to enable selected logical partitions to share a modem. These logical partitions will use the shared modem to access an external LAN." />
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<meta name="description" content="You have virtual Ethernet set up across four logical partitions. Use this scenario to enable selected logical partitions to share a modem. These logical partitions will use the shared modem to access an external LAN." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Scenario: Share a modem between logical partitions using L2TP</title>
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</head>
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<body id="rzaiysharedmodem"><a name="rzaiysharedmodem"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Scenario: Share a modem between logical partitions using L2TP</h1>
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<div><p>You have virtual Ethernet set up across four logical partitions.
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Use this scenario to enable selected logical partitions to share a modem.
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These logical partitions will use the shared modem to access an external LAN.</p>
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<div class="section"><h4 class="sectiontitle">Situation</h4><p>You are the system administrator at a
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medium sized company. It's time to update your computer equipment, but you'd
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like to do more than that; you want to streamline your hardware. You start
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the process by consolidating the work of three old servers onto one new iSeries™ server.
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You create three logical partitions on the iSeries server. The new iSeries server
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came with a 2793 internal modem. This is the only input/output processor (IOP)
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you have that supports PPP. You also have an old 7852–400 electronic customer
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support (ECS) modem.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Solution</h4><p>Multiple systems and partitions can share
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the same modems for dial-up connections, eliminating the need for each system
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or partition to have its own modem. This is possible by using L2TP tunnels
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and configuring L2TP profiles which allow outgoing calls. In your network,
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the tunnels will run over a virtual Ethernet network and a physical network.
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The physical line connects to another server in your network, which will also
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share modems.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Details</h4><p>The following figure illustrates the network
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characteristics for this scenario: </p>
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</div>
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<div class="section"><div class="fignone"><span class="figcap">Figure 1. Multiple systems sharing the same modem for dial-up connections</span><br /><img src="rzaiy512.gif" alt="Network diagram depicting multiple systems sharing the same modem for dial-up connections." /><br /></div>
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</div>
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<div class="section"><h4 class="sectiontitle">Prerequisites and assumptions</h4><p>Setup requirements
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for iSeries-A include: </p>
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<ul><li>i5/OS™ Version
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5 Release 3 or later, installed on the partition that owns the ASYNC capable
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modems</li>
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<li>Hardware that allows you to partition.</li>
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<li>iSeries Access
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for Windows<sup>®</sup> and iSeries Navigator
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(Configuration and Service component of iSeries Navigator), Version 5 Release
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3 or later</li>
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<li>You have created at least two logical partitions (LPAR) on the server.
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The partition that owns the modem must have i5/OS Version 5 Release 3 or later installed.
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The other partitions can have OS/400<sup>®</sup> V5R2, V5R3, Linux<sup>®</sup>, or AIX<sup>®</sup> installed.
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In this scenario, the partitions are either using i5/OS or Linux operating systems.</li>
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<li>You have virtual Ethernet created to communicate across partitions. See
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the following scenario: <a href="../rzamu/rzamuscensingle.htm">Create
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a virtual Ethernet network for interpartition communication</a>. </li>
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</ul>
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</div>
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<div class="section"><p>Setup requirements for iSeries-B include: </p>
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<ul><li>iSeries Access
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for Windows and iSeries Navigator
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(Configuration and Service component of iSeries Navigator), Version 5 Release
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2 or later</li>
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</ul>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzaiyscenariodetails.htm">Scenario details: Share a modem between logical partitions using L2TP</a></strong><br />
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After you complete the prerequisites, you are ready to begin configuring the L2TP profiles.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiyscenarios.htm" title="The scenarios in this topic help you understand how PPP works, and how you can implement a PPP environment in your network. These scenarios introduce fundamental PPP concepts from which beginners and experienced users can benefit before they proceed to the planning and configuration tasks.">Scenarios</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../rzait/rzaiticlpar.htm">Logical partitions</a></div>
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</div>
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</div>
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</body>
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</html>
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