47 lines
2.1 KiB
HTML
47 lines
2.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Diald Howto: Quick Diald operation description</TITLE>
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<LINK HREF="Diald-HOWTO-4.html" REL=next>
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<LINK HREF="Diald-HOWTO-2.html" REL=previous>
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<LINK HREF="Diald-HOWTO.html#toc3" REL=contents>
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<A HREF="Diald-HOWTO-4.html">Next</A>
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<A HREF="Diald-HOWTO.html#toc3">Contents</A>
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<HR>
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<H2><A NAME="s3">3. Quick Diald operation description</A></H2>
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<P>
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<P>In a few words, <EM>Diald</EM> creates a new network interface and sets it as
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the default gateway. This interface is not real (in the original
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documentation it is called <CODE>proxy interface</CODE>). <EM>Diald</EM> monitors this
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interface, and, when packets arrive, makes a <CODE>ppp</CODE> connection, waits
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for it to be stablished and changes the default gateway to this new
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<CODE>ppp</CODE> interface (usually <CODE>ppp0</CODE>).
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<P><EM>Diald</EM> monitors the interface to determine which packets have been
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received the interface and their types to decide if they are going to be
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considered to set the <CODE>ppp</CODE> connection up, maintain the link, drop it
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or do nothing, and how long the link should be help up after the packet is
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transmitted.
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<P>Finally, if there is no more traffic and the last packet up time is over,
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<EM>Diald</EM> will close the link.
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<P>You can control days and hours when the link can go up and when it cannot,
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so you can use the low cost hours/days or low trafic times.
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<P>This previous description is valid for <EM>Diald</EM> versions from 0.16.5 to
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latest (0.99.3 when this document was finished), but latest versions also
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include aditional attributes such as user enabled list, advanced
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accounting, better support for ISDN lines, better performance using an
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<CODE>ethertap</CODE> device as proxy (this is like a network interface that
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read/writes over a socket instead of a real network adapter) in place of
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<CODE>slip</CODE>, backup connections and other functions.
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<P>
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<HR>
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<A HREF="Diald-HOWTO-4.html">Next</A>
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<A HREF="Diald-HOWTO-2.html">Previous</A>
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<A HREF="Diald-HOWTO.html#toc3">Contents</A>
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