From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)

Description of problem:
When setting iptables to log packet matches, the output is sent to the 
console, as well the intended log file. Note that this even happens if the 
*only* entry in syslog.conf is for all logging to go to file, iptables 
data still clutters the console.

How reproducible:
Always

Steps to Reproduce:
1. iptables -A input -i eth0 -p tcp --syn -j LOG --log-level warning
2. Set syslog entry such as *.*  /var/log/logall
3. service syslog restart
4. ping the box
	

Actual Results:  iptables logging directly to console.

Expected Results:  No output to console, to /var/log/logall only.

Additional info:

Have demonstrated this on two different boxes, both low end pentiums.