68 lines
3.5 KiB
HTML
68 lines
3.5 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="2005-10-17" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 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>OptiConnect and IP Forwarding</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="ipforwarding"></a>
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<h3 id="ipforwarding">OptiConnect and IP Forwarding</h3>
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<p>IP forwarding and routing allows systems or partitions that are not connected
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to the same OptiConnect loop to communicate using TCP/IP.</p>
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<p>This is accomplished by configuring a unique subnet for each loop, enabling
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IP forwarding, and routing packets from one subnet to another.</p>
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<p>First, use the Change TCP/IP Attributes (CHGTCPA) command to turn on IP
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forwarding. This will enable forwarding of all packets, not just OptiConnect.
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Then define routes with the appropriate next hops to allow packets to flow
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to the desired destinations.</p>
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<p>The following example shows how to turn on IP forwarding on System B to
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allow System A to communicate with System C and System D:</p>
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<a name="wq45"></a>
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<div class="fignone" id="wq45"><span class="figcap">Figure 14. IP forwarding</span>
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<div class="mmobj">
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<img src="rzaeb509.gif" alt="" /></div></div>
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<ol type="1">
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<li>Define a route to destination 10.0.1.0 with a mask of 255.255.0 and specify
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10.0.0.2 as the next hop.
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<pre class="xmp">System A (10.0.0.1):
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ADDTCPIFC INTNETADR('10.0.0.1') LIND(*OPC) SUBNETMASK('255.255.255.0')
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ADDTCPRTE RTEDEST('10.0.1.0') SUBNETMASK('255.255.255.0') NEXTHOP('10.0.0.2')
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</pre></li>
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<li>Turn on IP forwarding on System B.
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<pre class="xmp">System B (10.0.0.2 and 10.0.1.2):
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CHGTCPA IPDTGFWD(*YES)
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ADDTCPIFC INTNETADR('10.0.0.2') LIND(*OPC) SUBNETMASK('255.255.255.0')
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ADDTCPIFC INTNETADR('10.0.1.2') LIND(*OPC) SUBNETMASK('255.255.255.0')
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</pre></li>
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<li>On System C and System D, define a route to destination 10.0.0.0 with
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a mask of 255.255.255.0 and specify 10.0.1.2 as the next hop.
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<pre class="xmp">System C (10.0.1.3):
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ADDTCPIFC INTNETADR('10.0.1.3') LIND(*OPC) SUBNETMASK('255.255.255.0')
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ADDTCPRTE RTEDEST('10.0.0.0') SUBNETMASK('255.255.255.0') NEXTHOP('10.0.1.2')
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System D (10.0.1.4):
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ADDTCPIFC INTNETADR('10.0.1.4') LIND(*OPC) SUBNETMASK('255.255.255.0')
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ADDTCPRTE RTEDEST('10.0.0.0') SUBNETMASK('255.255.255.0') NEXTHOP('10.0.1.2')
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</pre></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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