#!/bin/sh if grep -q "fw3" /etc/init.d/firewall; then iptables -nvL | grep -q "Chain RATE-LIMIT" && iptables -F RATE-LIMIT iptables -nvL | grep -q "Chain RATE-LIMIT" || iptables -N RATE-LIMIT iptables -A RATE-LIMIT --match limit --limit 1000/sec --limit-burst 1000 -j RETURN iptables -A RATE-LIMIT -j DROP iptables -I zone_wan_forward 5 --match conntrack --ctstate NEW -j RATE-LIMIT elif grep -q "fw4" /etc/init.d/firewall; then nft add chain inet fw4 RATE-LIMIT nft add rule inet fw4 RATE-LIMIT limit rate 1000/second burst 1000 packets counter return nft add rule inet fw4 RATE-LIMIT counter drop nft insert rule inet fw4 forward_wan ct state new counter jump RATE-LIMIT fi