When you don't want to forward a port, you can delete or suspend forwarding for that
port.
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In the left-hand column of the Administration screen,
click Port Forwarding.
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If you want to remove the port forwarding permanently, click
Delete for the forwarding you wish you delete.
Forwarding for this port is immediately disabled and deleted forever.
Note: You can always create a new forwarding with the same properties in the
future.
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If you think you might need this forwarding again soon, clear
Enable and click Update for the
forwarding you wish to disable.
Enable the forwarding again by selecting Enable
again and click Update again.