ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzaiy_5.4.0.1/rzaiyprotocol.htm

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<meta name="DC.Title" content="Protocol type: PPP or Serial Line Internet Protocol (SLIP)" />
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<title>Protocol type: PPP or Serial Line Internet Protocol (SLIP)</title>
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<h1 class="topictitle1">Protocol type: PPP or Serial Line Internet Protocol (SLIP)</h1>
<div><p>Which protocol type should you choose to make a point-to-point
connection? </p>
<div class="section"><p>PPP is a standard Internet connection. PPP allows interoperability
among the remote access software of different manufacturers. PPP also allows
multiple network communication protocols to use the same physical communication
line.</p>
</div>
<div class="section"><p>PPP replaces Serial Line Internet Protocol (SLIP) as the protocol
of choice for point-to-point connections. The SLIP Request for Comment (RFC)
never became an Internet standard because of the following deficiencies: </p>
<ul><li>SLIP has no standard way to define IP addressing between the two hosts.
This means that an unnumbered net cannot be used.</li>
<li>SLIP has no support for error detection or error compression. Error detection
or error compression is implemented in PPP.</li>
<li>SLIP has no support for system authentication, while PPP has two-way authentication.</li>
</ul>
</div>
<div class="section"><p>SLIP is still used today, and is still supported on the iSeries™ server.
However, IBM<sup>®</sup> suggests
that you use PPP when setting up point-to-point connectivity. SLIP provides
no support for Multilink connections. Compared to SLIP, PPP has better authentication.
PPP performs better because of its compression facilities. </p>
<div class="note"><span class="notetitle">Note:</span> SLIP
connection profiles that are defined with ASYNC line types are no longer supported
in this release. If you have these connection profiles, you must migrate them
to either a SLIP profile or a PPP profile that uses a PPP line type.</div>
</div>
</div>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiyprofile.htm" title="The first step in configuring a PPP connection between systems is to create a connection profile on the iSeries server.">Create a connection profile</a></div>
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