150 lines
3.9 KiB
HTML
150 lines
3.9 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of Match-all classifier in tc</TITLE>
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</HEAD><BODY>
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<H1>Match-all classifier in tc</H1>
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Section: Linux (8)<BR>Updated: 21 Oct 2015<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<P>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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matchall - traffic control filter that matches every packet
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<BR>
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<B>tc</B> <B>filter</B> ... <B>matchall</B> [
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<B>skip_sw</B> | <B>skip_hw</B>
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] [
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<B>action</B>
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<I>ACTION_SPEC</I> ] [
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<B>classid</B>
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<I>CLASSID</I> ]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>matchall</B>
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filter allows to classify every packet that flows on the port and run a
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action on it.
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>action</B><I> ACTION_SPEC</I>
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<DD>
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Apply an action from the generic actions framework on matching packets.
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<DT id="2"><B>classid</B><I> CLASSID</I>
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<DD>
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Push matching packets into the class identified by
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<I>CLASSID</I>.
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<DT id="3"><B>skip_sw</B>
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<DD>
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Do not process filter by software. If hardware has no offload support for this
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filter, or TC offload is not enabled for the interface, operation will fail.
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<DT id="4"><B>skip_hw</B>
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<DD>
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Do not process filter by hardware.
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</DL>
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<A NAME="lbAF"> </A>
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<H2>EXAMPLES</H2>
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To create ingress mirroring from port eth1 to port eth2:
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<DL COMPACT><DT id="5"><DD>
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<P>
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tc qdisc add dev eth1 handle ffff: ingress
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tc filter add dev eth1 parent ffff: \
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<BR> matchall skip_sw \
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<BR> action mirred egress mirror \
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<BR> dev eth2
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</DL>
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<P>
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The first command creats an ingress qdisc with handle
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<B>ffff:</B>
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on device
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<B>eth1</B>
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where the second command attaches a matchall filters on it that mirrors the
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packets to device eth2.
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<P>
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To create egress mirroring from port eth1 to port eth2:
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<DL COMPACT><DT id="6"><DD>
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<P>
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tc qdisc add dev eth1 handle 1: root prio
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tc filter add dev eth1 parent 1: \
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<BR> matchall skip_sw \
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<BR> action mirred egress mirror \
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<BR> dev eth2
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</DL>
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<P>
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The first command creats an egress qdisc with handle
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<B>1:</B>
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that replaces the root qdisc on device
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<B>eth1</B>
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where the second command attaches a matchall filters on it that mirrors the
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packets to device eth2.
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<P>
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To sample one of every 100 packets flowing into interface eth0 to psample group
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12:
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<DL COMPACT><DT id="7"><DD>
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<P>
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tc qdisc add dev eth0 handle ffff: ingress
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tc filter add dev eth0 parent ffff: matchall \
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<BR> action sample rate 100 group 12
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</DL>
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<P>
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<A NAME="lbAG"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?8+tc">tc</A></B>(8),
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="8"><A HREF="#lbAB">NAME</A><DD>
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<DT id="9"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="10"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="11"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="12"><A HREF="#lbAF">EXAMPLES</A><DD>
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<DT id="13"><A HREF="#lbAG">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:17 GMT, March 31, 2021
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