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<html><head><!-- /vobs/wpwr/docs/vxworks/ref/if_loop.html - generated by refgen from if_loop.c --> <title> if_loop </title></head><body bgcolor="#FFFFFF"> <hr><a name="top"></a><p align=right><a href="libIndex.html"><i>VxWorks Reference Manual :  Libraries</i></a></p></blockquote><h1>if_loop</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  <p><strong>if_loop</strong> - software loopback network interface driver </p></blockquote><h4>ROUTINES</h4><blockquote><p><p><b><i><a href="./if_loop.html#loattach">loattach</a></i>(&nbsp;)</b>  -  publish the <b>lo</b> network interface and initialize the driver and pseudo-device<br><p></blockquote><h4>DESCRIPTION</h4><blockquote><p>This module implements the software loopback network interface driver.The only user-callable routine is <b><i><a href="./if_loop.html#loattach">loattach</a></i>(&nbsp;)</b>, which publishes the <b>lo</b>interface and initializes the driver and device.<p>This interface is used for protocol testing and timing.By default, the loopback interface is accessible at Internetaddress 127.0.0.1.<p></blockquote><h4>BOARD LAYOUT</h4><blockquote><p>This device is "software only."  A jumpering diagram is not applicable.<p></blockquote><h4>SEE ALSO</h4><blockquote><p><b><a href="./if_loop.html#top">if_loop</a></b>, <b><a href="./ifLib.html#top">ifLib</a></b><hr><a name="loattach"></a><p align=right><a href="rtnIndex.html"><i>Libraries :  Routines</i></a></p></blockquote><h1><i>loattach</i>(&nbsp;)</h1> <blockquote></a></blockquote><h4>NAME</h4><blockquote>  <p><strong><i>loattach</i>(&nbsp;)</strong> - publish the <b>lo</b> network interface and initialize the driver and pseudo-device</p></blockquote><h4>SYNOPSIS</h4><blockquote><p><pre>STATUS loattach (void)</pre></blockquote><h4>DESCRIPTION</h4><blockquote><p>This routine attaches an <b>lo</b> Ethernet interface to the network, if theinterface exists.  It makes the interface available by filling inthe network interface record.  The system initializes the interfacewhen it is ready to accept packets.<p></blockquote><h4>RETURNS</h4><blockquote><p>OK.</blockquote><h4>SEE ALSO</h4><blockquote><p><b><a href="./if_loop.html#top">if_loop</a></b></body></html>
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