lfs-book/chapter06/iproute2.xml

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  <!ENTITY % general-entities SYSTEM "../general.ent">
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<sect1 id="ch-system-iproute2" role="wrap">
  <title>IPRoute2-&iproute2-version;</title>
<?dbhtml filename="iproute2.html"?>
  <indexterm zone="ch-system-iproute2">
    <primary sortas="a-IPRoute2">IPRoute2</primary>
  </indexterm>
  <sect2 role="package">
    <title/>
    <para>The IPRoute2 package contains programs for basic and advanced
          IPV4-based networking.
    </para>
    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>
      <seglistitem>
        <seg>0.1 SBU</seg>
        <seg>4.3 MB</seg>
      </seglistitem>
    </segmentedlist>
    <segmentedlist>
      <segtitle>&dependencies;</segtitle>
      <seglistitem>
        <seg>DB, GCC, Glibc, Make, and Linux-Headers</seg>
      </seglistitem>
    </segmentedlist>
  </sect2>
  <sect2 role="installation">
    <title>Installation of IPRoute2</title>

    <para>Prepare IPRoute2 for compilation:</para>
    <screen><userinput>chmod u+x configure &amp;&amp;
./configure</userinput></screen>

    <para>Compile the package:</para>

    <screen><userinput>make SBINDIR=/sbin</userinput></screen>

    <para>The meaning of the make option:</para>

    <variablelist>
    <varlistentry>
    <term><parameter>SBINDIR=/sbin</parameter></term>
    <listitem><para>This ensures that the IPRoute2 binaries will install into
      <filename class="directory">/sbin</filename>. This is the correct location
      according to the FHS, because some of the IPRoute2 binaries are used by
      the LFS-Bootscripts package.</para>
    </listitem>
    </varlistentry>
    </variablelist>

    <para>This package does not come with a test suite.</para>

    <para>Install the package:</para>

    <screen><userinput>make SBINDIR=/sbin install</userinput></screen>
    
    <para>The <command>arpd</command> binary links against the DB libraries
          that reside in <filename class="directory">/usr</filename> and
          uses a database in <filename>/var/lib/arpd/arpd.db</filename>. Thus,
          according to the FHS, it must be
          in <filename class="directory">/usr/sbin</filename>. Move it there:
    </para>

    <screen><userinput>mv -v /sbin/arpd /usr/sbin</userinput></screen>
      
  </sect2>

  <sect2 id="contents-iproute2" role="content">
    <title>Contents of IPRoute2</title>
    <segmentedlist>
      <segtitle>Installed programs</segtitle>
      <seglistitem>
        <seg>arpd, ctstat (link to lnstat), ifcfg, ifstat, ip, lnstat, nstat,
	     routef, routel, rtacct, rtmon, rtpr, rtstat (link to lnstat), ss,
	     and tc.
        </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
      <varlistentry id="arpd">
        <term>
          <command>arpd</command>
        </term>
        <listitem>
          <para>Userspace ARP daemon, useful in really large networks, where
	        the kernelspace ARP implementation is insufficient, or
	        when setting up a honeypot</para>
          <indexterm zone="ch-system-iproute2 arpd">
            <primary sortas="b-arpd">arpd</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ctstat">
        <term>
          <command>ctstat</command>
        </term>
        <listitem>
          <para>Connection status utility</para>
          <indexterm zone="ch-system-iproute2 ctstat">
            <primary sortas="b-ctstat">ctstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ifcfg">
        <term>
          <command>ifcfg</command>
        </term>
        <listitem>
          <para>A shell script wrapper for the <command>ip</command> command</para>
          <indexterm zone="ch-system-iproute2 ifcfg">
            <primary sortas="b-ifcfg">ifcfg</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ifstat">
        <term>
          <command>ifstat</command>
        </term>
        <listitem>
          <para>Shows the interface statistics, including the amount of transmitted
                and received packets by interface</para>
          <indexterm zone="ch-system-iproute2 ifstat">
            <primary sortas="b-ifstat">ifstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ip">
        <term>
          <command>ip</command>
        </term>
        <listitem>

          <para>The main executable. It has several different functions:</para>

          <para><command>ip link <replaceable>[device]</replaceable></command>
                allows users to look at the state of devices and to make changes
          </para>

          <para><command>ip addr</command> allows users to look at addresses and
                their properties, add new addresses, and delete old ones
          </para>

          <para><command>ip neighbor</command> allows users to look at
		neighbor bindings and their properties, add new
		neighbor entries, and delete old ones
          </para>

          <para><command>ip rule</command> allows users to look at the routing
                policies and change them
          </para>

          <para><command>ip route</command> allows users to look at the routing
                table and change routing table rules
          </para>

          <para><command>ip tunnel</command> allows users to look at the IP
                tunnels and their properties, and change them
          </para>

          <para><command>ip maddr</command> allows users to look at the multicast
                addresses and their properties, and change them
          </para>

          <para><command>ip mroute</command> allows users to set, change, or
                delete the multicast routing
          </para>

          <para><command>ip monitor</command> allows users to
		continously monitor the state of devices, addresses and routes
          </para>
          <indexterm zone="ch-system-iproute2 ip">
            <primary sortas="b-ip">ip</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="lnstat">
        <term>
          <command>lnstat</command>
        </term>
        <listitem>
          <para>Provides Linux network statistics.  It is a generalized and more
                feature-complete replacement for the old
                <command>rtstat</command> program</para>
          <indexterm zone="ch-system-iproute2 lnstat">
            <primary sortas="b-lnstat">lnstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="nstat">
        <term>
          <command>nstat</command>
        </term>
        <listitem>
          <para>Shows network statistics</para>
          <indexterm zone="ch-system-iproute2 nstat">
            <primary sortas="b-nstat">nstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="routef">
        <term>
          <command>routef</command>
        </term>
        <listitem>
          <para>A component of <command>ip route</command>. This is for flushing the routing
                tables
          </para>
          <indexterm zone="ch-system-iproute2 routef">
            <primary sortas="b-routef">routef</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="routel">
        <term>
          <command>routel</command>
        </term>
        <listitem>
          <para>A component of <command>ip route</command>. This is for listing the routing
                tables
          </para>
          <indexterm zone="ch-system-iproute2 routel">
            <primary sortas="b-routel">routel</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtacct">
        <term>
          <command>rtacct</command>
        </term>
        <listitem>
          <para>Displays the contents of <filename>/proc/net/rt_acct</filename></para>
          <indexterm zone="ch-system-iproute2 rtacct">
            <primary sortas="b-rtacct">rtacct</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtmon">
        <term>
          <command>rtmon</command>
        </term>
        <listitem>
          <para>Route monitoring utility</para>
          <indexterm zone="ch-system-iproute2 rtmon">
            <primary sortas="b-rtmon">rtmon</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtpr">
        <term>
          <command>rtpr</command>
        </term>
        <listitem>
          <para>Converts the output of <command>ip -o</command> back into a
                readable form</para>
          <indexterm zone="ch-system-iproute2 rtpr">
            <primary sortas="b-rtpr">rtpr</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtstat">
        <term>
          <command>rtstat</command>
        </term>
        <listitem>
          <para>Route status utility</para>
          <indexterm zone="ch-system-iproute2 rtstat">
            <primary sortas="b-rtstat">rtstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ss">
        <term>
          <command>ss</command>
        </term>
        <listitem>
          <para>Similar to the <command>netstat</command> command; shows active connections</para>
          <indexterm zone="ch-system-iproute2 ss">
            <primary sortas="b-ss">ss</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="tc">
        <term>
          <command>tc</command>
        </term>
        <listitem>
          <para>Traffic Controlling Executable; this is for Quality Of
                Service (QOS) and Class Of Service (COS)
                implementations
          </para>

          <para><command>tc qdisc</command> allows users to setup the queueing
                discipline
          </para>

          <para><command>tc class</command> allows users to setup classes based on
                the queuing discipline scheduling
          </para>

          <para><command>tc estimator</command> allows users to estimate the
                network flow into a network
          </para>

          <para><command>tc filter</command> allows users to setup the QOS/COS
                packet filtering
          </para>

          <para><command>tc policy</command> allows users to setup the QOS/COS
                policies
          </para>
          <indexterm zone="ch-system-iproute2 ss">
            <primary sortas="b-tc">tc</primary>
          </indexterm>
        </listitem>
      </varlistentry>
    </variablelist>
  </sect2>
</sect1>