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I'm trying to set up SSH connection with a PC that is behind the DSL router.

I do know that to do that - I need to turn off firewall on the router and set up port forwarding.

So my firewall is off.

Forwarding is set up (according to this manual:

SSH to localhost works.

SSH through global IP doesn't work (just keeps connecting until I turn it off).

Is there anything else I need to do on ZyXel? I was setting up same thing on TP-Link router - and it took me two minutes.

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I had the same issue. I solved mine with nat rule from 2222 beginning port to 22 end port. Then I can succesfully connect to server with ssh user@global.ip -p 2222 command.

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