These were my NAT settings:
more /etc/network/if-up.d/iptables:
#!/bin/sh
### Port Forwarding ###
iptables -A PREROUTING -t nat -p tcp -i eth0 --dport 80 -j DNAT --to 10.0.0.2:80
iptables -A PREROUTING -t nat -p tcp -i eth0 --dport 6678 -j DNAT --to 10.0.0.1:22
iptables -A PREROUTING -t nat -p tcp -i eth0 --dport 6679 -j DNAT --to 10.0.0.2:22
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