order of starting services at boot?

[Duane Winner]

Hello,

Can anybody explain to me how FreeBSD 5.2.1 controls the start order of 
the scripts in /etc/rc.d ?

I've looked all over and am having trouble gleening what controls this.

For instance, if I would like to start ipfw before dhclient (right now 
dhclient starts, then ipfw starts), how would I accomplish this?

Thanks,
Duane