Pbroblem with CRL check

[Jacques VUVANT]

Hi all   I've installed and use freeradius 1.0.1 for EAP/TLS auntentication. It work well without CRL.  But each time I want to active check_crl = yes on eap.conf file , authentication fail with following message :   *** unable to get certificate CRL***   Someone can help me on following questions : what looks like crl file ? where (dorectory) do the be ? some modifications to do on .conf file ?   Thanks for any answer   Jacques VUVANT