Can't bring NAT to work

Posted by user31738 on Super User See other posts from Super User or by user31738
Published on 2010-03-20T13:48:12Z Indexed on 2010/03/20 13:51 UTC
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nat

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router

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configuration

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modem

Hello, I bought a D-link DIR-300 wireless router and i can't bring NAT to work, i have an ssh and http service i need to forward to the internet. My connection is as follows:

I have an ADSL connection, i'm using a ADSL ethernet modem connected and working, it doesnt let me put it on bridge mode.
I have my router connected to my adsl modem through ethernet, it gets its ip through DHCP (and i'ts always the same)
I have a desktop computer running linux with apache and openssh configured and working, it has fixed ip.
I configured the NAT in the modem forwarding port 22 from the router ip to the internet.
In the router i setup NAT forwarding port 22 from the desktop computer fixed ip to out there.

This setup already worked with a fonera i had before, can anyone help me with this or tell me what kind of tests do i need to do? How can i test if the router is forwarding ports correctly before the modem?

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