ipfw rules + natd .. other question

[mufalani]

Hi all,

  Thank you for help me in configure NAT ... It´s working perfectly!!!

One another doubt...

where my public address = 200.X.Y.Z
and my trusted addresses = 201.1.2.3, 205.6.7.8

  I want to only liberate the access to IP 200.X.Y.Z 
for addresses: 201.1.2.3, 205.6.7.8 and to block for the remaining portion of the world.

  You can help me?

###############my natd.conf###############
log yes
same_ports yes
use_sockets yes
interface rl0
redirect_port tcp 10.0.0.211:80 200.X.Y.Z:80
redirect_port tcp 10.0.0.211:80 200.X.Y.Z:80
############# end nat.conf #################

############  rc.local ####################
/sbin/natd -s -n rl0 -p 8668 -config "/etc/natd.conf"
/sbin/ipfw -f flush
##
/sbin/ipfw add 100 allow ip from 205.6.7.8 to 200.X.Y.Z keep-state
/sbin/ipfw add 100 allow ip from 201.1.2.3 to 200.X.Y.Z keep-state
##
/sbin/ipfw add 120 deny ip from any to 200.X.Y.Z
##
/sbin/ipfw add 140 divert 8668 ip from any to 200.X.Y.Z in recv rl0
/sbin/ipfw add 150 divert 8668 ip from 201.0.0.0 to 200.X.Y.Z in recv rl0
/sbin/ipfw add 160 divert 8668 ip from 10.0.0.211 to any out xmit rl0
############# end rc.local #################