Statefull Firewall Iptables

iptables -A FORWARD -s 192.160.0.0/24 -m state --state NEW,ESTABLISHED -j ACCEPT

iptables -A FORWARD -d 192.160.0.0/24 -m state --state RELATED,ESTABLISHED -j ACCEPT

iptables -A FORWARD -m state --state INVALID -j DROP
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