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iptables -D INPUT   -s 10.0.0.0/8 -j DROP
iptables -D FORWARD -s 10.0.0.0/8 -j DROP
#######
iptables -A FORWARD -s 10.0.1.1 -m mac --mac-source 00:01:02:FA:9E:8E  -j ACCEPT
iptables -A INPUT   -s 10.0.1.1 -m mac --mac-source 00:01:02:FA:9E:8E  -j ACCEPT
#######
iptables -A FORWARD -s 10.0.1.2 -m mac --mac-source 00:50:BA:BF:41:5F  -j ACCEPT
iptables -A INPUT   -s 10.0.1.2 -m mac --mac-source 00:50:BA:BF:41:5F  -j ACCEPT
#######
iptables -A FORWARD -s 10.0.1.3 -m mac --mac-source 00:C0:4F:24:55:18  -j ACCEPT
iptables -A INPUT   -s 10.0.1.3 -m mac --mac-source 00:C0:4F:24:55:18  -j ACCEPT
#######
iptables -A INPUT   -s 10.0.0.0/8 -j DROP
iptables -A FORWARD -s 10.0.0.0/8 -j DROP
#######

THIS COULD BE DONE IN FREEBSD 6.2 ONLY WITH IPFW, PLEASE GUIDE ME