Hi Amresh Kumar! The PREROUTING and POSTROUTING chains exist only in nat or mangle tables. So add iptables -t nat or iptables -t mangle > iptables rule : iptables -A PREROUTING -i eth0 -p tcp --dport 80 -m state > --state NEW -m nth --counter 0 --every 4 --packet 0 -j DNAT > --to-destination 192.168.0.5:80 > > iptables -A PREROUTING -i eth0 -p tcp --dport 80 -m state --state NEW -m > random --average 25 -j DNAT --to-destination 192.168.0.5:80 > > The above rules would be for the nat table. HTH Sorin
