- Remove reference to MS-Windows, because since the last rewrite, the section

does not refer to Windows anymore
- Remove reference to IPSEC_ESP kernel option, which does not exist anymore
- Add "device crypto", which is required to compile a kernel with IPSEC
- In the ipsec rc.d script setkey.conf is parsed by setkey, so convert it
  from shell script to setkey syntax
- Add racoon_enable to the rc.conf section so racoon is started on boot
- The whole section uses the setkey from ipsec-tools so set ipsec_program in
  rc.conf for consistency

Approved by:	remko

en_US.ISO8859-1/books/handbook/security/chapter.sgml

@@ -3046,9 +3046,7 @@ Connection closed by foreign host.</screen>
       <title>Understanding IPsec</title>
 
       <para>This section will guide you through the process of setting
-	up IPsec, and to use it in an environment which consists of
-	FreeBSD and <application>&microsoft.windows; 2000/XP</application>
-	machines, to make them communicate securely.  In order to set up
+	up IPsec. In order to set up
 	IPsec, it is necessary that you are familiar with the concepts
 	of building a custom kernel (see
 	<xref linkend="kernelconfig">).</para>
@@ -3123,14 +3121,9 @@ Connection closed by foreign host.</screen>
 	<secondary>IPSEC</secondary>
       </indexterm>
 
-      <indexterm>
-	<primary>kernel options</primary>
-	<secondary>IPSEC_ESP</secondary>
-      </indexterm>
-
       <screen>
 options   IPSEC        #IP security
-options   IPSEC_ESP    #IP security (crypto; define w/ IPSEC)
+device    crypto
       </screen>
 
       <indexterm>
@@ -3400,9 +3393,8 @@ sainfo  (address 10.246.38.0/24 any address 10.0.0.0/24 any)	# address $network/
 	initialization and should be saved as
 	<filename>/usr/local/etc/racoon/setkey.conf</filename>.</para>
 
-<programlisting>#!/bin/sh
-/usr/local/sbin/setkey -FP
-/usr/local/sbin/setkey -F
+<programlisting>flush;
+spdflush;
 # To the home network
 /usr/local/sbin/setkey -c spdadd 10.246.38.0/24 10.0.0.0/24 any -P out ipsec esp/tunnel/172.16.5.4-192.168.1.12/use;
 /usr/local/sbin/setkey -c spdadd 10.0.0.0/24 10.246.38.0/24 any -P in ipsec esp/tunnel/192.168.1.12-172.16.5.4/use;</programlisting>
@@ -3481,7 +3473,9 @@ pass out quick on gif0 from any to any</programlisting>
 	<filename>/etc/rc.conf</filename>:</para>
 
       <programlisting>ipsec_enable="YES"
-ipsec_file="/usr/local/etc/racoon/setkey.conf" # allows setting up spd policies on boot</programlisting>
+ipsec_program="/usr/local/sbin/setkey"
+ipsec_file="/usr/local/etc/racoon/setkey.conf" # allows setting up spd policies on boot
+racoon_enable="yes"</programlisting>
     </sect2> 
   </sect1>