Quando listo as minhas regras elas ficam assim, mas não está funcionando!!!

Chain INPUT (policy ACCEPT)
target prot opt source destination ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state NEW
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT all -- 172.16.64.0 anywhere LOG tcp -- anywhere anywhere tcp dpt:ssh LOG level warning
ACCEPT tcp -- anywhere anywhere tcp dpt:ssh

Chain FORWARD (policy DROP)
target prot opt source destination
ACCEPT all -- 172.16.64.0 anywhere
ACCEPT all -- anywhere 172.16.64.0

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- 172.16.64.0 anywhere
ACCEPT icmp -- 172.16.64.0 anywhere

HELP-ME!!!