Using scanlogd

Hello! I have just installed scanlogd in my suse 7.1 system. I thought it was ready to use just out of the box, but it does not look in this way. I have read the man page, I have added the lines to syslog.conf as it advices, then I tried to port scan my self from a remote machine. No portscan was detected. I am using nmap with normal timings. So, I think I am missing something obvious. What? Regards, Praise