In PPPoA section:

- fix a wrong option in pptpclient command line
- some punctuation and typo fixes
- some tags fixes.

en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml

@@ -2250,16 +2250,16 @@ ppp_profile="adsl"</programlisting>
         requirements and provider settings. The port places a set of
         sample configuration files which are well documented in
         <filename><replaceable>PREFIX</replaceable>/etc/mpd/</filename>.
-        Note here that <emphasis>PREFIX</emphasis> means the directory
+        Note here that <replaceable>PREFIX</replaceable> means the directory
         into which your ports are installed, this defaults to
         <filename>/usr/local/</filename>. A complete guide to
-        configuring <application>mpd</application> is available in
+        configure <application>mpd</application> is available in
         HTML format once the port has been installed. It is placed in
         <filename><replaceable>PREFIX</replaceable>/share/mpd/</filename>.
         Here is a sample configuration for connecting to an ADSL
         service with <application>mpd</application>. The configuration
         is spread over two files, first the
-        <filename>mpd.conf</filename>.</para>
+        <filename>mpd.conf</filename>:</para>
 
       <programlisting>default:
     load adsl
@@ -2299,7 +2299,7 @@ adsl:
     <para>The <filename>mpd.links</filename> file contains information about
       the link, or links, you wish to establish. An example
       <filename>mpd.links</filename> to accompany the above example is given
-      beneath.</para>
+      beneath:</para>
 
     <programlisting>adsl:
     set link type pptp
@@ -2323,7 +2323,7 @@ adsl:
     </calloutlist>
 
     <para>It is possible to initialize the connection easily by issuing the
-      following command as <username>root</username>.</para>
+      following command as <username>root</username>:</para>
 
     <screen>&prompt.root; <userinput>mpd -b <replaceable>adsl</replaceable></userinput></screen>
 
@@ -2388,12 +2388,12 @@ ng0: flags=88d1&lt;UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST&gt; mtu 1500
       <para>This will open a tunnel for a PPP session to your DSL router.
 	Ethernet DSL modems have a preconfigured LAN IP address which you
 	connect to. In the case of the Alcatel &speedtouch; Home this address is
-	<hostid role="ipaddr">10.0.0.138</hostid>. Your routers documentation
+	<hostid role="ipaddr">10.0.0.138</hostid>. Your router documentation
 	should tell you which address your device uses. To open the tunnel and
-	start a <application>ppp</application> session execute the following
-	command.</para>
+	start a PPP session execute the following
+	command:</para>
 
-      <screen>&prompt.root; <userinput>pptp <replaceable>address</replaceable> <replaceable>isp</replaceable></userinput></screen>
+      <screen>&prompt.root; <userinput>pptp <replaceable>address</replaceable> <replaceable>adsl</replaceable></userinput></screen>
 
       <tip>
 	<para>You may wish to add an ampersand (<quote>&amp;</quote>) to the
@@ -2406,7 +2406,7 @@ ng0: flags=88d1&lt;UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST&gt; mtu 1500
 	and <application>ppp</application> processes. Once you have been
 	returned to your prompt, or the <application>pptp</application>
 	process has confirmed a connection you can examine the tunnel like
-	so.</para>
+	so:</para>
 
       <screen>&prompt.user; <userinput>ifconfig <replaceable>tun0</replaceable></userinput>
 tun0: flags=8051&lt;UP,POINTOPOINT,RUNNING,MULTICAST&gt; mtu 1500
@@ -2417,7 +2417,7 @@ tun0: flags=8051&lt;UP,POINTOPOINT,RUNNING,MULTICAST&gt; mtu 1500
 	your router, which is usually accessible via
 	<application>telnet</application> or with a web browser. If you still
 	cannot connect you should examine the output of the
-	<application>pptp</application> command and the contents of the
+	<command>pptp</command> command and the contents of the
 	<application>ppp</application> log file,
 	<filename>/var/log/ppp.log</filename> for clues.</para>
     </sect2>