A. iptables -t nat -D PREROUTING -p tcp –sport 80 -j DNAT – -to-destination 192.0.2.25:3128
B. iptables -t nat -A PREROUTING -p top –dport 81 -j DNAT -to-destination 192.0.2.25:3129
C. iptables -t nat -I PREROUTING -p top –sport 80 -j DNAT -to-destination 192.0.2.25:3129
D. iptables -t nat -A PREROUTING -p tcp –dport 80 -j DNAT -to-destination 192.0.2.25:3128