I've used the steps below to temporary redirect IP traffic, during migration to another host. Tested on CentOS 6.x
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to-destination 2.2.2.2:443
iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT iptables -A FORWARD -p tcp -d 2.2.2.2 --dport 443 -j ACCEPT
iptables -t nat -A POSTROUTING -j MASQUERADE
iptables -nvL -t nat
iptables -nvL -t nat --line-numbers
iptables -t nat -D <num> iptables -D FORWARD <num>