For those who were wanting a permanent fix to the IPTables issue for dreampi 1.5 and want it now I have the solution for you
first you'll need to login
username: pi
password: raspberry
then type
sudo nano -w /etc/rc.local
you'll be brought into an editor
go down right above "exit 0" and right below "fi"
type in the following line
sudo iptables -t nat -A PREROUTING -p tcp -d 63.251.242.131 -j DNAT --to-destination 146.185.135.179
Then hold down "Ctrl + X" you'll be prompted to save just type "Y" press enter,
then it will ask you the file name, rc.local should already be entered for you so just hit enter again
reboot your pi and your done!