  <varlistentry>
  <term><emphasis remap='B'>crlcheckinterval</emphasis></term>
  <listitem>
<para>interval expressed in second units, for example crlcheckinterval=60
for 60 seconds, after which pluto will verify loaded X.509 CRL's for
expiration. If any of the CRL's is expired, or if they previously
failed to get updated, a new attempt at updating the CRL is made. The
first attempt to update a CRL is started at two times the crlcheckinterval.
If set to <emphasis remap='B'>0</emphasis>, which is also the default value 
if this option is not specified, CRL updating is disabled.
</para>
  </listitem>
  </varlistentry>

