76 lines
4.6 KiB
HTML
76 lines
4.6 KiB
HTML
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<meta name="DC.Title" content="Packet rules terminology" />
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<title>Packet rules terminology</title>
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<body id="rzajbdef-ipterms"><a name="rzajbdef-ipterms"><!-- --></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">Packet rules terminology</h1>
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<div><p>Here are the useful terms related to packet rules.</p>
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<dl><dt class="dlterm">border</dt>
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<dd>Border is a public address that forms a border between a trusted and an
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untrusted network. It describes the IP address as an actual interface on the iSeries™ server.
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The system needs to know the "type" of address you are defining. For example,
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your personal computer's IP address is trusted, but your server's public IP
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address is border.</dd>
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<dt class="dlterm">firewall</dt>
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<dd>A logical barrier around systems in a network. A firewall consists of
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hardware, software, and a security policy that controls the access and flow
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of information between secure (trusted) systems and nonsecure (untrusted)
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systems.</dd>
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<dt class="dlterm">maxcon</dt>
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<dd><img src="./delta.gif" alt="Start of change" />Maxcon is a parameter, which is part of masquerade network
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address translation (NAT) filter rule. It is the number of conversations that
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can be active at one time. You are required to define this number when you
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set up NAT masquerade rules. The default value is 128. Maxcon only pertains
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to masquerade NAT rules.<img src="./deltaend.gif" alt="End of change" /></dd>
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<dt class="dlterm">NAT conversation</dt>
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<dd>A NAT conversation is a relationship between any of the following IP addresses
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and port numbers: <ul><li>Private source IP address and source port number (without NAT)</li>
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<li>Public (NAT) source IP address and public (NAT) source port number</li>
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<li>Destination IP address and port number (an external network)</li>
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</ul>
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</dd>
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<dt class="dlterm">PPP filter identifier</dt>
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<dd>A PPP filter identifier allows you to apply filter rules to an interface
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that has been defined in a point-to-point profile. The PPP filter identifier
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also links the filter rules to groups of users in a point-to-point profile.
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Because the point-to-point profile is associated with a specific IP address,
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the filter identifier implicitly defines the interface to which the rules
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apply. To learn more, see this scenario, <a href="../rzaiy/rzaiygrppol.htm">Manage remote user access to resources using Group Policies
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and IP filtering</a> in the <em>Remote Access Services: PPP connections</em> topic.</dd>
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<dt class="dlterm">timeout</dt>
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<dd>Timeout controls the amount of time a conversation is allowed to last.
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If you have timeout set too short, the conversation is stopped too quickly.
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The default value is 16.</dd>
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</dl>
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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="rzajbrzajb1whatis.htm" title="Packet rules comprise both network address translation (NAT) rules and IP filtering rules. These two functions run at the IP layer of the TCP/IP stack and help protect your system against potential risks that are commonly associated with TCP/IP traffic.">Packet rules concepts</a></div>
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