svn commit: r48296 - head/en_US.ISO8859-1/books/handbook/config

Author: blackend
Date: Mon Feb 29 11:34:00 2016
New Revision: 48296
URL: https://svnweb.freebsd.org/changeset/doc/48296

Log:
  Add informations on how to use DHCP for NIC configuration.
  Refine the Testing and Troubleshooting section.

Modified:
  head/en_US.ISO8859-1/books/handbook/config/chapter.xml

Modified: head/en_US.ISO8859-1/books/handbook/config/chapter.xml
==============================================================================
--- head/en_US.ISO8859-1/books/handbook/config/chapter.xml	Mon Feb 29 04:49:11 2016	(r48295)
+++ head/en_US.ISO8859-1/books/handbook/config/chapter.xml	Mon Feb 29 11:34:00 2016	(r48296)
@@ -967,9 +967,29 @@ lo0: flags=8049<UP,LOOPBACK,RUNNING,M
 	<acronym>NIC</acronym> configuration can be performed from the
 	command line with &man.ifconfig.8; but will not persist after
 	a reboot unless the configuration is also added to
-	<filename>/etc/rc.conf</filename>.  Add a line for each
-	<acronym>NIC</acronym> present on the system, as seen in this
-	example:</para>
+	<filename>/etc/rc.conf</filename>.  If a
+	<acronym>DHCP</acronym> server is present on your LAN, you
+	will just have to add the following line:</para>
+
+      <programlisting>ifconfig_dc0="DHCP"</programlisting>
+
+      <para>Replace <filename>dc0</filename> with the correct value
+	for the system.</para>
+
+      <para>The line added, then, follow the instructions given in <xref
+	linkend="config-network-testing"/>.</para>
+
+      <note>
+	<para>If the network was configured during installation, some
+	  entries for the <acronym>NIC</acronym>(s) may be already
+	  present.  Double check <filename>/etc/rc.conf</filename>
+	  before adding any lines.</para>
+      </note>
+
+      <para>In the case, there is no <acronym>DHCP</acronym> server,
+	the <acronym>NIC</acronym>(s) have to be configured manually.
+	Add a line for each <acronym>NIC</acronym> present on the
+	system, as seen in this example:</para>
 
       <programlisting>ifconfig_dc0="inet 192.168.1.3 netmask 255.255.255.0"
 ifconfig_dc1="inet 10.0.0.1 netmask 255.255.255.0 media 10baseT/UTP"</programlisting>
@@ -981,11 +1001,6 @@ ifconfig_dc1="inet 10.0.0.1 netmask 255.
 	&man.rc.conf.5; for more details about the allowed options and
 	the syntax of <filename>/etc/rc.conf</filename>.</para>
 
-      <para>If the network was configured during installation, some
-	entries for the <acronym>NIC</acronym>(s) may be already
-	present.  Double check <filename>/etc/rc.conf</filename>
-	before adding any lines.</para>
-
       <para>If the network is not using <acronym>DNS</acronym>, edit
 	<filename>/etc/hosts</filename> to add the names and
 	<acronym>IP</acronym> addresses of the hosts on the
@@ -1003,7 +1018,7 @@ ifconfig_dc1="inet 10.0.0.1 netmask 255.
       </note>
     </sect2>
 
-    <sect2>
+    <sect2 xml:id="config-network-testing">
       <title>Testing and Troubleshooting</title>
 
       <para>Once the necessary changes to
@@ -1066,7 +1081,12 @@ round-trip min/avg/max/stddev = 0.700/0.
 	  of the <acronym>IP</acronym> address.  If there is no
 	  <acronym>DNS</acronym> server on the network,
 	  <filename>/etc/hosts</filename> must first be
-	  configured.</para>
+	  configured.  To this purpose, edit
+	  <filename>/etc/hosts</filename> to add the names and
+	  <acronym>IP</acronym> addresses of the hosts on the
+	  <acronym>LAN</acronym>, if they are not already there.  For
+	  more information, refer to &man.hosts.5; and to
+	  <filename>/usr/share/examples/etc/hosts</filename>.</para>
       </sect3>
 
       <sect3>
@@ -1113,7 +1133,7 @@ round-trip min/avg/max/stddev = 0.700/0.
 	  if a cable is unplugged.  Check the output of
 	  <command>netstat -rn</command> and make sure there is a
 	  valid route to the host.  If there is not, read
-	  <xref linkend="advanced-networking"/>.</para>
+	  <xref linkend="network-routing"/>.</para>
 
 	<para><errorname>ping: sendto: Permission denied</errorname>
 	  error messages are often caused by a misconfigured firewall.
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