Iptables Squid Transparent
From MS Computech
# Redirect service ftp from Local.Netcafe to any.Wan options redirectport="2121" /sbin/iptables -t nat -A PREROUTING -i eth2 -p tcp -m tcp --syn -s 192.168.1.0/255.255.255.0 --sport 1024:65535 -d 0.0.0.0/0.0.0.0 --dport 21 -j REDIRECT --to-ports 2121 /sbin/iptables -A INPUT -i eth2 -p tcp -m tcp --syn -s 192.168.1.0/255.255.255.0 --sport 1024:65535 -d 192.168.1.1/255.255.255.255 --dport 2121 -j ACCEPT # Redirect service http from Local.Netcafe to any.Wan options redirectport="8888" /sbin/iptables -t nat -A PREROUTING -i eth2 -p tcp -m tcp --syn -s 192.168.1.0/255.255.255.0 --sport 1024:65535 -d 0.0.0.0/0.0.0.0 --dport 80:81 -j REDIRECT --to-ports 8888 /sbin/iptables -A INPUT -i eth2 -p tcp -m tcp --syn -s 192.168.1.0/255.255.255.0 --sport 1024:65535 -d 192.168.1.1/255.255.255.255 --dport 8888 -j ACCEPT
