75 lines
4.9 KiB
HTML
75 lines
4.9 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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<meta name="DC.Title" content="Step 4: Create the interface to enable proxy ARP" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Step 4: Create the interface to enable proxy ARP</title>
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</head>
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<body id="arpcreateproxyifc"><a name="arpcreateproxyifc"><!-- --></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">Step 4: Create the interface to enable proxy ARP</h1>
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<div><div class="section"> <p>To create the TCP/IP interface to enable proxy ARP, complete
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these steps:</p>
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</div>
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<ol><li class="stepexpand"><span>Obtain a contiguous block of IP addresses that are routable by
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your network.</span> <p>Since you have two partitions in this virtual
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Ethernet, you need a block of four addresses. The fourth segment of the first
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IP address in the block must be divisible by four. The first and last IP addresses
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of this block are the subnet and broadcast IP addresses are unusable. The
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second and third IP address can be used for the TCP/IP interfaces for the
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virtual Ethernet on partition A and partition B. For this procedure, the IP
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address block is <samp class="codeph">10.1.1.72</samp> through <samp class="codeph">10.1.1.75</samp> with
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a subnet mask of <samp class="codeph">255.255.255.252</samp>.</p>
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<p>You also need a single
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IP address for your external TCP/IP address. This IP address does not have
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to belong to your block of contiguous addresses, but it must be within the
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same original subnet mask of <samp class="codeph">255.255.255.0</samp>. In this procedure,
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the external IP address is <samp class="codeph">10.1.1.15</samp>.</p>
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</li>
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<li class="stepexpand"><span>Create an i5/OS™ TCP/IP interface for partition B. This interface
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is known as the external, proxy ARP IP interface. To create the interface,
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follow these steps:</span><ol type="a"><li><span>On the command line on partition B, type <kbd class="userinput">CFGTCP</kbd>,
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and then press Enter to see the Configure TCP/IP panel.</span></li>
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<li><span>Select option 1 (Work with TCP/IP Interfaces), and then press
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Enter.</span></li>
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<li><span>Select option 1 (Add), and then press Enter to see the Add TCP/IP
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Interface (ADDTCPIFC) panel.</span></li>
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<li><span>At the <em>Internet address</em> prompt, type <kbd class="userinput">'10.1.1.15'</kbd>.</span></li>
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<li><span>At the <em>Line description</em> prompt, type the name of your
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line description, such as ETHLINE.</span></li>
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<li><span>At the <em>Subnet mask</em> prompt, type <kbd class="userinput">'255.255.255.0'</kbd>.</span></li>
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</ol>
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</li>
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<li class="stepexpand"><span>Start the interface. On the Work with TCP/IP Interfaces panel,
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select option 9 (Start) by the interface.</span></li>
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</ol>
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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="rzai2proxyarp.htm" title="This proxy Address Resolution Protocol (ARP) method uses transparent subnetting to associate a partition's virtual interface with an external interface. Proxy ARP function is built into the TCP/IP stack. If you have the necessary IP addresses, this approach is recommended.">Proxy Address Resolution Protocol method</a></div>
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<div class="previouslink"><strong>Previous topic:</strong> <a href="rzai2arpdataforward.htm">Step 3: Turn on IP datagram forwarding</a></div>
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<div class="nextlink"><strong>Next topic:</strong> <a href="rzai2arpcreatevethifcprim.htm">Step 5: Create the virtual TCP/IP interface on partition A</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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