You only need to forward ports 10052-10054 to play JJ2.
Usually to get to the router configuration, you go to a web address, such as http://192.168.1.1.
But it isn't the same for all routers, so I would recommend reading the router manual to find out how to do it.
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With our extreme gelatinous apology,
We beg to inform your Imperial Majesty,
Unto whom be dominion and power and glory,
There still remains that strange precipitate
Which has the quality to resist
Our oldest and most trusted catalyst.
It is a substance we cannot cremate
By temperatures known to our Laboratory.
~ E.J. Pratt
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