ipfw flooding in /var/log/ipfw.log

[Spades]

i assigned the logging to /var/log/ipfw.log

this is my ipfw.rule for now
# ipfw add 900 allow log all from any to any

when i ssh to the server, it will start flooding /var/log/ipfw.log

Oct 25 18:29:12 mojito /kernel: ipfw: 900 Accept TCP 192.168.1.203:22 
219.74.176.130:4510 out via fxp0
Oct 25 18:29:12 mojito /kernel: ipfw: 900 Accept TCP 219.74.176.130:4510 
192.168.1.203:22 in via fxp0

It will keep spitting this 2 lines as long i'm connected, how do i make
it such as it will log only one instance?

Thanks
Regards.