Using a CRL with pfSense IPSec

[rfetech]

I'm wanting to change my Mobile Clients IPSec connection from using pre-shared keys to using certificates.  I would also like to use CRL's as we could have a laptop stolen at some point in time.  Could someone tell me where to place the CRL within the file structure of pfSense or if this is even possible with pfSense?

Regards,
Mitch