  <varlistentry>
  <term><emphasis remap='B'>force_keepalive</emphasis></term>
  <listitem>
<para>This option has been obsoleted since libreswan version 3.2. See the
<emphasis remap='I'>nat_keepalive</emphasis> option to enable/disable NAT-KA
packets on a per-connection basis. </para>
  </listitem>
  </varlistentry>

