С flashfs знакомы? Если да, то в post-firewall. Если нет, то знакомьтесь.
Code:mkdir -p /usr/local/sbin echo "#!/bin/sh" >> /usr/local/sbin/post-firewall echo "iptables -t nat -I PREROUTING -i vlan1 -p tcp --dport 21 -j DNAT --to-destination 192.168.1.16" >> /usr/local/sbin/post-firewall echo "iptables -I FORWARD -i vlan1 -p tcp --syn --dport 21 -j ACCEPT" >> /usr/local/sbin/post-firewall chmod +x /usr/local/sbin/post-firewall flashfs save && flashfs commit && flashfs enable