88 lines
5.6 KiB
HTML
88 lines
5.6 KiB
HTML
<?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>Configure a firewall</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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<img src="delta.gif" alt="Start of change" /><img src="delta.gif" alt="Start of change" />
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<a name="rzahqconffirewall"></a>
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<h3 id="rzahqconffirewall">Configure a firewall</h3>
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<p>If there is a firewall between the iSeries™ and the iSCSI network, then the firewall
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must be configured to allow incoming iSCSI and virtual Ethernet traffic to
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pass. The values that affect firewall configuration are listed below:</p>
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<p><span class="bold">For storage paths and virtual Ethernet connections protected
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by the firewall: </span></p>
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<ul>
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<li><span class="bold">Remote IP address:</span> Use the procedure described in <a href="rzahqdisiplayremotesysconfig.htm#rzahqdisiplayremotesysconfig">Display remote system configuration properties</a> to display the properties of the remote
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system configuration for the server. Go to the <span class="bold">Network Interfaces</span> tab and note the <span class="bold">SCSI Internet Address</span> and <span class="bold">LAN Internet Address</span> values.</li>
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<li><img src="delta.gif" alt="Start of change" /><span class="bold">Local IP address and TCP port:</span> Use the
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procedure described in <a href="rzahqdisplaynwshprops.htm#rzahqdisplaynwshprops">Display network server host adapter properties</a> to display the
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properties of the network server host adapter (NWSH). Go to the <span class="bold">Local Interfaces</span> tab to see information that is used by the NWSH. Record
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the following values:
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<ul>
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<li>Local SCSI interface: Internet address</li>
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<li>Local SCSI interface: TCP port</li>
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<li>Local LAN interface: Internet address</li>
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<li>Local LAN interface: Base virtual Ethernet port</li>
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<li>Local LAN interface: Upper virtual Ethernet port
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<a name="wq225"></a>
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<div class="notetitle" id="wq225">Note:</div>
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<div class="notebody"> Virtual
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Ethernet traffic is encapsulated in UDP packets. Each virtual Ethernet adapter
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is automatically assigned a UDP port from a range that begins at the specified
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base virtual Ethernet port number and ends at the base virtual Ethernet port
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number plus the number of configured virtual Ethernet adapters. Each virtual
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Ethernet adapter is also has a UDP port assigned at the Windows server.
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UDP ports for virtual Ethernet are normally automatically allocated by Windows.
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If you want to override automatic allocation, you can manually allocate
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a UDP port by performing the following steps at the Windows console.</div>
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<ol type="1">
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<li>Navigate to the <span class="bold">Network Connections Window</span>.</li>
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<li>Double-click the <span class="bold">IBM® iSeries Virtual Ethernet x</span> adapter that
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you want to configure.</li>
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<li>Click <span class="bold">Properties</span>.</li>
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<li>Click <span class="bold">Configure</span>.</li>
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<li>Click <span class="bold">Advanced</span>.</li>
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<li>Click <span class="bold">Initiator LAN UDP Port</span>.</li>
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<li>Enter the UDP port that you want the virtual Ethernet adapter to use.</li></ol></li></ul><img src="deltaend.gif" alt="End of change" /></li>
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<li><span class="bold">TCP ports associated with all Local IP addresses:</span>
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<p>Using iSeries Navigator:</p>
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<ol type="1">
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<li>Expand <span class="bold">Expand Integrated Server Administration</span>.</li>
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<li>Select <span class="bold">Servers</span>.</li>
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<li>Right-click the server from the list available and select <span class="bold">Properties</span>.</li>
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<li>Go to the <span class="bold">System</span> tab and click the <span class="bold">Advanced</span> button.</li>
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<li>Note the following values:
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<ul>
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<li><span class="bold">Shutdown TCP port</span></li>
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<li><span class="bold"><span class="bold">Virtual Ethernet control port</span></span></li></ul></li></ol></li></ul>
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<p>If IPSec is used, there are additional considerations for firewalls between
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an iSCSI HBA and the iSCSI network: </p>
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<ul>
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<li> <span class="bold">Allow IPSec:</span> This option is not available on all
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firewalls.</li>
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<li> Only IP addresses should be considered when configuring firewalls. TCP
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and UDP ports are encrypted by IPSec, and therefore the firewall cannot act
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on this information.</li></ul><img src="deltaend.gif" alt="End of change" /><img src="deltaend.gif" alt="End of change" />
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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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