afctl rule not added

Hello

After a recent clean install of Lion on a shiny new Mini, and applying all software updates, it would appear that afctl is not running. Console shows MULTIPLE (filling up the log file) attempts of a remote host trying to ssh in as root. It was my understanding that the firewall in Lion was supposed to block multiple failed attempts by an attacker? Do I need to turn something on for this to happen? Log excerpt below:

1/17/12 9:18:34.410 AM sshd: error: PAM: authentication error for root from 14.53.10.152 via 10.0.0.2

1/17/12 9:18:34.417 AM emond: Host at 14.53.10.152 will be blocked for at least 15 minutes

1/17/12 9:18:34.439 AM afctl: Firewall not running or managed by another entity, rule not added

How do I turn on afctl, or ipfw, or pf, etc....

B