September 2, 2010 at 6:20 am #51035
Change of destination IP is done in PREROUTING chain of nat table. Try this:
iptables -t nat -I PREROUTING -s 192.168.1.2 -p tcp --dport 80 -j DNAT --to-destination 188.8.131.52
where 192.168.1.2 is the banned IP and 184.108.40.206 is the IP you want to redirect to.