please help: snort + woody

[Jörg Böhnke <joerg_boehnke@web.de>]

Hi List,
I just installed debian woody on a blank harddisk.
I tried to install the minimum number of packages.

i choosed snort and required packages.

during startup i find Starting Netwok Intrusion Detection System: Snort eth0 
Promiscuous mode enabled

so I expect to find any protocol trying this:

# cat /var/log/auth.log | /usr/sbin/snort-stat

But this shows:
# Subject: [SNORT] oggi
#  daily report
#
# The log begins from:   ::
# The log ends     at:   ::
# Total events: 0
# Signatures recorded: 0
# Source IP recorded: 0
# Destination IP recorded: 0
#
#...

Does this mean that no report was made?
What has to be done to run snort?