Okay, the first thing I did is to add
to my /etc/syslog.conf file. You could name the file whatever you want; I chose kerndbug because it's possible I could see other kernel related messages in there as well as my iptables log entries.
The next thing I did was to explicitly define my log rules with iptables. Here's an example
iptables -A VDROP -j LOG --log-ip-options --log-tcp-options --log-level debug --log-prefix "VFLAG "
The log-prefix option with the quoted parameter following makes it very easy to inspect the log file and know what rule generated the entry.