67 lines
4.4 KiB
HTML
67 lines
4.4 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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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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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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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Static (map) NAT" />
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<meta name="abstract" content="Static (map) network address translation (NAT) provides a one-to-one mapping of private IP addresses to public IP addresses. It allows you to map an IP address on your internal network to an IP address that you want to make public." />
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<meta name="description" content="Static (map) network address translation (NAT) provides a one-to-one mapping of private IP addresses to public IP addresses. It allows you to map an IP address on your internal network to an IP address that you want to make public." />
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<meta name="DC.Relation" scheme="URI" content="rzajbrzajb4natsd.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzajbrzajb0dexample2.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzajb4a-staticnat" />
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<meta name="DC.Language" 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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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Static (map) NAT</title>
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</head>
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<body id="rzajb4a-staticnat"><a name="rzajb4a-staticnat"><!-- --></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">Static (map) NAT</h1>
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<div><p>Static (map) network address translation (NAT) provides a one-to-one
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mapping of private IP addresses to public IP addresses. It allows you to map
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an IP address on your internal network to an IP address that you want to make
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public.</p>
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<p>Static NAT allows communication to be initiated from your internal network
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or an external network, like the Internet. It is especially useful if you
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have a server within your internal network that you want to allow public users
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to access. In this case, you need to create a NAT rule that maps the actual
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server address to a public address. The public address will become external
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information. This ensures that private information remains out of the hands
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of someone who might attack your systems.</p>
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<p>The following list highlights the features of static NAT:</p>
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<ul><li>One-to-one mapping</li>
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<li>External and internal network initiation</li>
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<li>The address you associate or map to can be any address</li>
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<li>The address you associate or map to becomes un-usable as an IP interface</li>
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<li>Does not use port-mapped NAT</li>
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</ul>
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<div class="attention"><span class="attentiontitle">Attention:</span> Use caution if you decide to map a personal computer
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to the well-known address of the iSeries™ server. The <dfn class="term">well-known
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address</dfn> is the IP address reserved for most Internet and intranet traffic.
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If you do map to this IP address, NAT will translate all traffic and send
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it to the internal private address. Because this interface will be reserved
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for NAT, your iSeries server
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and the interface become unusable.</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzajbrzajb4natsd.htm" title="Network address translation (NAT) allows you to access the Internet safely without having to change your private network IP addresses.">Network address translation (NAT)</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzajbrzajb0dexample2.htm" title="In this scenario, your company uses static network address translation (NAT) to map its private IP addresses to public addresses.">Scenario: Map IP addresses using NAT</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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