iptables下NAT网络改为Full Cone

Solution:
Using iptables, I set all policies to "ACCEPT" and I was able to setup two kinds of NAT:
(192.168.2.170 is my "public" address and 10.0.0.1 is my "private" address

/-"Full Cone NAT", with the following rules:/
iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source 192.168.2.170
iptables -t nat -A PREROUTING -i eth0 -j DNAT --to-destination 10.0.0.1

/-"Port Restricted Cone NAT", with just a single rule:/
iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source 192.168.2.170/