By setting strictcrlpolicy=yes a strict CRL policy is enforced on
both roadwarrior carol and gateway moon. Thus when carol initiates
the connection and no current CRL is available, the Main Mode negotiation fails
and a http fetch to get the CRL from the web server winnetou is triggered.
When the second Main Mode trial comes around the fetched CRL will be available
but because the certificate presented by carol has been revoked,
the IKE negotatiation will fail.